BIG-IP Hotfix Release Information

Version: BIGIP-12.1.0
Build: 1468.0
Hotfix Rollup: 2

Cumulative fixes from BIG-IP v12.1.0 Hotfix 1 that are included in this release
Known Issues in BIG-IP v12.1.x

Vulnerability Fixes

ID Number	CVE	Solution Article(s)	Description
600662-9	CVE-2016-5745	SOL64743453	CGNAT: NAT64 vulnerability CVE-2016-5745
599168-7	CVE-2016-5700	SOL35520031	BIG-IP virtual server with HTTP Explicit Proxy and/or SOCKS vulnerability CVE-2016-5700
598983-7	CVE-2016-5700	SOL35520031	BIG-IP virtual server with HTTP Explicit Proxy and/or SOCKS vulnerability CVE-2016-5700
580596-1	CVE-2013-0169 CVE-2016-6907	SOL14190 SOL39508724	TLS/DTLS 'Lucky 13' vulnerability CVE-2013-0169 / TMM SSL/TLS virtual server vulnerability CVE-2016-6907

Functional Change Fixes

None


TMOS Fixes

ID Number	Severity	Description
604211-1	2-Critical	License not operational on Azure after upgrading from 12.0.0 HF1-EHF14 to 12.0.0-HF4 or 12.1.0-HF1 or 12.1.1.★
600859-2	2-Critical	Module not licensed after upgrade from 11.6.0 to 12.1.0 HF1 EHF.★
599033-5	2-Critical	Traffic directed to incorrect instance after network partition is resolved
595394-3	2-Critical	Upgrading 11.5.x/11.6.x hourly billing instances in AWS with multiple NICs to 12.1.x can result in instance becoming inaccessible.★
606110-2	3-Major	BIG-IP VE dataplane interfaces change to using UNIC modules instead of sockets.
596814-4	3-Major	HA Failover fails in certain valid AWS configurations
596603-2	3-Major	AWS: BIG-IP VE doesn't work with c4.8xlarge instance type.

Application Security Manager Fixes

ID Number	Severity	Description
600357-2	3-Major	bd crash when asm policy is removed from virtual during specific configuration change

Cumulative fixes from BIG-IP v12.1.0 Hotfix 1 that are included in this release


Vulnerability Fixes

ID Number	CVE	Solution Article(s)	Description
591806-8	CVE-2016-3714	SOL03151140	ImageMagick vulnerability CVE-2016-3714
569467-5	CVE-2016-2084	SOL11772107	BIG-IP and BIG-IQ cloud image vulnerability CVE-2016-2084.
591918-2	CVE-2016-3718	SOL61974123	ImageMagick vulnerability CVE-2016-3718
591908-2	CVE-2016-3717	SOL29154575	ImageMagick vulnerability CVE-2016-3717
591894-2	CVE-2016-3715	SOL10550253	ImageMagick vulnerability CVE-2016-3715
591881-1	CVE-2016-3716	SOL25102203	ImageMagick vulnerability CVE-2016-3716

Functional Change Fixes

ID Number	Severity	Description
583631-2	1-Blocking	Version change in outer SSL Records for ClientHello
590993	3-Major	Unable to load configs from /usr/libexec/aws/.
576478	3-Major	Enable support for the Purpose-Built DDoS Hybrid Defender Platform
544477	3-Major	New Hourly Billable VE instances in AWS and Azure register with F5 Licensing Server for Support.

TMOS Fixes

ID Number	Severity	Description
591039	2-Critical	DHCP lease is saved on the Custom AMI used for auto-scaling VE
590779	2-Critical	Rest API - log profile in json return does not include the partition but needs to
588140	2-Critical	Pool licensing fails in some KVM/OpenStack environments
587791-1	2-Critical	Set execute permission on /var/lib/waagent
565137	2-Critical	Pool licensing fails in some KVM/OpenStack environments.
554713-2	2-Critical	Deployment failed: Failed submitting iControl REST transaction
592363	3-Major	Remove debug output during first boot of VE
592354	3-Major	Raw sockets are not enabled on Cloud platforms

Local Traffic Manager Fixes

ID Number	Severity	Description
592699-3	2-Critical	IPv6 data pulled from the BIG-IP system via HTTPS, SCP, SSH, DNS or SMTP performance
594302-1	3-Major	Connection hangs when processing large compressed responses from server
592854-1	3-Major	Protocol version set incorrectly on serverssl renegotiation
592682-1	3-Major	TCP: connections may stall or be dropped
531979-6	3-Major	SSL version in the record layer of ClientHello is not set to be the lowest supported version.

Application Visibility and Reporting Fixes

ID Number	Severity	Description
582629-1	2-Critical	User Sessions lookups are not cleared, session stats show marked as invalid

Access Policy Manager Fixes

ID Number	Severity	Description
590601-2	3-Major	BIG-IP as SAML SP does not redirect users to original request URI after authentication is completed
590428-1	3-Major	The "ACCESS::session create" iRule command does not work
590345-1	3-Major	ACCESS policy running iRule event agent intermittently hangs
585905-1	3-Major	Citrix Storefront integration mode with pass-through authentication fails
581834-5	3-Major	Firefox signed plugin for VPN, Endpoint Check, etc

Anomaly Detection Services Fixes

ID Number	Severity	Description
588399-1	3-Major	BIG-IP CPU utilization can be high even when all bad actors are detected and mitigated
582374-1	3-Major	Multiple 'Loading state for virtual server' messages in admd.log
569121-1	3-Major	Advanced Detection rate limiting can be incorrect in multi-blade clusters when rate limit is low
547053-1	4-Minor	Bad actor quarantining

Traffic Classification Engine Fixes

ID Number	Severity	Description
590795-1	2-Critical	tmm crash when loading default signatures or updating classification signature★

 

Cumulative fix details for BIG-IP v12.1.0 Hotfix 2 that are included in this release

606110-2 : BIG-IP VE dataplane interfaces change to using UNIC modules instead of sockets.

Component: TMOS

Symptoms:
On AWS and Azure, dataplane interfaces use socket-based networking instead of UNIC modules. After upgrading a version later than 12.1.0, the default module for dataplane interfaces is UNIC modules instead of socket-based networking.

Conditions:
Upgrading BIG-IP VE on AWS or Azure running versions 12.0.0 or 12.1.0.

Impact:
The raw socket-based tmm driver is replaced by a UNIC driver. The socket-based driver eliminates kernel driver dependencies and provides better portability during kernel/driver upgrades.

Workaround:
None.

Fix:
BIG-IP VE socket-based networking driver retained after upgrade on AWS or Azure.

---

604211-1 : License not operational on Azure after upgrading from 12.0.0 HF1-EHF14 to 12.0.0-HF4 or 12.1.0-HF1 or 12.1.1.★

Component: TMOS

Symptoms:
On Azure, after upgrading to any version other than 12.0.0 HF1-EHF14 or 12.1.0-HF1-EHF22, the system boots up as Not Licensed and Inoperative.

Although certain cloud-specific 12.x EHFs such as BIG-IP Virtual Edition 12.1.0 HF1 EHF1 is intended for AWS only, BIG-IP does not prevent you from accidentally downloading and installing it into Azure environments. If you upgrade Azure from BIG-IP Virtual Edition 12.0.0 HF1 EHF14 to the 12.1.0 HF1 EHF1 or 12.0.0-hf4 or 12.1.1, the Azure license becomes nonoperational and gets invalidated.

Conditions:
Upgrading a BYOL instance on Azure to 12.1.0 HF1 EHF1 or 12.1.1. The Azure-specific versions are as follows:
- 12.0.0-HF1-EHF14.
- 12.1.0-HF1-EHF22.

Impact:
License becomes unusable. Re-licensing the instance gets an invalid license.

Workaround:
The workaround for this issue is to boot back into previous boot volume, and then upgrade to 12.1.0-HF1-EHF22 in Azure.

To change default boot volume, choose one of the following methods:
1. tmsh reboot volume volume-name.
2. switchboot utility (interactive mode by default).
3. Admin UI.

For more information about the switchboot utility, see SOL5658: Overview of the switchboot utility, available here: https://support.f5.com/kb/en-us/solutions/public/5000/600/sol5658.html.

Fix:
This release fixes the issue that occurred when the Azure license become nonoperational after upgrading to BIG-IP Virtual Edition 12.1.0 HF1 EHF1 from 12.0.0 HF1 EHF14.

Note: Do not use BIG-IP 12.1.0 HF1 EHF1 in the Azure environments.

---

600859-2 : Module not licensed after upgrade from 11.6.0 to 12.1.0 HF1 EHF.★

Component: TMOS

Symptoms:
After upgrading 11.6.0 Hourly instances to 12.1.0 EHF Hourly instances with Instance Registration support, instance license becomes invalid and BIG-IP is unable to acquire a new hourly license.

Conditions:
Upgrading 11.6.0, or earlier Hourly Licensing instance to 12.1.0 HF1 EHF.

Impact:
License is invalidated and instance becomes unusable.

Workaround:
- Run "/usr/libexec/autoLicense -l" from command-line.

Fix:
Module licenses correctly after upgrade from 11.6.0 to 12.1.0 HF2 or later.

---

600662-9 : CGNAT: NAT64 vulnerability CVE-2016-5745

Vulnerability Solution Article: SOL64743453

---

600357-2 : bd crash when asm policy is removed from virtual during specific configuration change

Component: Application Security Manager

Symptoms:
BD restarts and produces a core file

Conditions:
A configuration change which involves headers configuration or a policy re-configuration and at the same time, while this update is taking place the ASM policy is removed from the virtual.
This is more likely to happen in scripted tests than in the field.

Impact:
Traffic gets dropped while the ASM gets restarted.

Workaround:
Don't change ASM configuration at the same time as changing the virtual server configuration.

Fix:
System will still restart but will not produce a core file when this happens.

---

599168-7 : BIG-IP virtual server with HTTP Explicit Proxy and/or SOCKS vulnerability CVE-2016-5700

Vulnerability Solution Article: SOL35520031

---

599033-5 : Traffic directed to incorrect instance after network partition is resolved

Component: TMOS

Symptoms:
After a network partition is resolved, the BIG-IP high availability subsystem may select a different device to handle traffic than the external network.

Conditions:
If the external network does not respond to GARP (Gratuitous ARP) messages to direct IP traffic to the correct device after an Active/Active condition is resolved, then it may continue to send traffic to a device that is now in Standby mode.

Impact:
Traffic will be interrupted since the upstream network is sending traffic to a device that won't process it.

Workaround:
The administrator might be able to manually run a script or command to redirect traffic to the correct device that is hosting the virtual service.

Fix:
When a network partition is resolved, and an Active/Active high availability pair chooses a single Active node, it now invokes a script that can be used to automatically notify the external network infrastructure of the new location for the virtual service. This new script is located in /config/failover/tgrefresh, and is invoked in addition to the transmission of GARP messages.

---

598983-7 : BIG-IP virtual server with HTTP Explicit Proxy and/or SOCKS vulnerability CVE-2016-5700

Vulnerability Solution Article: SOL35520031

---

596814-4 : HA Failover fails in certain valid AWS configurations

Component: TMOS

Symptoms:
Some of the floating object's IPs might not be reattached to the instance acting as the new active device.

Conditions:
AWS deployments where there are multiple coincidences for the provided IP address (corresponding to other Amazon VPCs in the same Availability Zone containing unrelated instances but having the same IP address as the BIG-IP's floating IP address.

Impact:
Potential traffic disruption. Some of the floating object's IPs might not be reattached to the instance acting as the new active device.

Workaround:
Do not have AWS deployments with multiple VPCs sharing the same IP address as the BIG-IP's floating IP address.

Fix:
Failover now narrows network description by filtering with VPC id.

---

596603-2 : AWS: BIG-IP VE doesn't work with c4.8xlarge instance type.

Component: TMOS

Symptoms:
When deploying BIG-IP VE in AWS with c4.8xlarge instance type, the system never boots and remains in "Stopped" state after briefly trying to start-up.

Conditions:
BIG-IP VE is deployed with c4.8xlarge instance type in AWS.

Impact:
c4.8xlarge instance type are not supported for BIG-IP VE in AWS.

Workaround:
Choose c4.4xlarge or other instance types in AWS.

Fix:
Issue corrected so that BIG-IP VE will work with c4.8xlarge instance type AWS.

---

595394-3 : Upgrading 11.5.x/11.6.x hourly billing instances in AWS with multiple NICs to 12.1.x can result in instance becoming inaccessible.★

Component: TMOS

Symptoms:
Upgrading 11.5.x/11.6.x hourly billing instances in AWS with multiple NICs to 12.1.x can result in instance becoming inaccessible.

Conditions:
11.5.x/11.6.x Hourly Billing instances with multiple NICs attached.

Impact:
User might not be able to log-in to the instance.

Workaround:
Rebooting the instance corrects the problem.

Fix:
Upgrading 11.5.x/11.6.x hourly billing instances in AWS with multiple NICs to 12.1.x works with new Hourly billing licenses.

---

594302-1 : Connection hangs when processing large compressed responses from server

Component: Local Traffic Manager

Symptoms:
When large compressed responses are sent by the server, the connection hangs when trying to send decompressed content to the client.

Conditions:
An LTM policy which enforces decompression for responses is attached to the virtual server. The virtual server also has http compression profile attached to it. Server sends large compressed responses.

Impact:
Connection hangs when trying to process the compressed response in order to send decompressed content to client.

Fix:
The large compressed responses are successfully processed and no connection hangs are seen.

---

592854-1 : Protocol version set incorrectly on serverssl renegotiation

Component: Local Traffic Manager

Symptoms:
If the BIG-IP serverssl profile sends a new ClientHello request to renegotiate SSL, the protocol version will be set to 0. This will cause renegotiation to fail.

Conditions:
ServerSSL profile configured on a virtual server, and BIG-IP initiates a renegotiation.

Impact:
Protocol field is invalid (0), and the server will reset the connection.

Fix:
Fixed a reset issue with SSL renegotiation in the serverssl profile.

---

592699-3 : IPv6 data pulled from the BIG-IP system via HTTPS, SCP, SSH, DNS or SMTP performance

Component: Local Traffic Manager

Symptoms:
IPv6 data pulled from the BIG-IP system via HTTPS, SCP, SSH, DNS or SMTP might encounter significant performance impacts when initiated over a BIG-IP data port using IPv6.

Conditions:
-- Protocols: HTTPS, SCP, SSH, DNS, SMTP.
-- IPv6.
Note: Management port is not impacted.

Impact:
Performance impact pulling data over affected ports from the BIG-IP over IPv6.
BIG-IQ performance is impacted trying to manage BIG-IP devices over IPv6.

Workaround:
Disable TSO for IPv6 at the command line by running the following command: ethtool -K tmm tso off.
Note: This command must be run each time after reboot.

Fix:
The issue has been corrected, so that there is no performance impact pulling data over affected ports using HTTPS, SCP, SSH, DNS or SMTP from the BIG-IP over IPv6, and there is no BIG-IQ performance issue managing BIG-IP devices over IPv6.

---

592682-1 : TCP: connections may stall or be dropped

Component: Local Traffic Manager

Symptoms:
TCP connections stall or get dropped.

Conditions:
Under some network conditions especially with rateshaper enabled TCP connection could stall and ultimately get reset.

Impact:
This usually happens with rateshaper or BWC enabled. Rarely could also happen with very lossy networks.

Fix:
Properly manage re-transmissions after a tail drop by not not doing the exponential back-off. Reset the re-transmit timer for every partial ack received after a tail drop.

---

592363 : Remove debug output during first boot of VE

Component: TMOS

Symptoms:
There was unneeded debug output during 1st boot of VE on Cloud deployments.

Conditions:
Cloud deployment - AWS and Azure.

Impact:
Extra debug output on 1st boot.

Fix:
Debug output was removed.

---

592354 : Raw sockets are not enabled on Cloud platforms

Component: TMOS

Symptoms:
Cloud VMs come configured with UNIC driver instead of using raw sockets.

Conditions:
Cloud deployment - AWS and Azure.

Impact:
UNIC is used instead of raw sockets.

Workaround:
Manually disabling unic driver will force raw sockets to be used.

Fix:
Enabled raw sockets by default on Cloud deployments.

---

591918-2 : ImageMagick vulnerability CVE-2016-3718

Vulnerability Solution Article: SOL61974123

---

591908-2 : ImageMagick vulnerability CVE-2016-3717

Vulnerability Solution Article: SOL29154575

---

591894-2 : ImageMagick vulnerability CVE-2016-3715

Vulnerability Solution Article: SOL10550253

---

591881-1 : ImageMagick vulnerability CVE-2016-3716

Vulnerability Solution Article: SOL25102203

---

591806-8 : ImageMagick vulnerability CVE-2016-3714

Vulnerability Solution Article: SOL03151140

---

591039 : DHCP lease is saved on the Custom AMI used for auto-scaling VE

Component: TMOS

Symptoms:
When configuring the instance for auto-scaling purpose and subsequently generating the Custom/Model AMI that is used for autoscaling VEs, the new instances generated from this image, might have the old DHCP lease acquired by the custom instance before an AMI was generated from it. This can collide with the new lease that the new instances get in their boot-up.

Conditions:
This occurs when Auto-scaling VEs.

Impact:
Multiple valid DHClient leases exist, which could result dhclient in BIG-IP choosing wrong IP address for the management interface.

Workaround:
Delete the /var/lib/dhclient/dhclient.leases before shutting down the custom instance and generating a Custom/Model AMI out of it.

Fix:
Auto-scaling AMI will no longer contain a DHCP lease when they are saved.

---

590993 : Unable to load configs from /usr/libexec/aws/.

Component: TMOS

Symptoms:
In 12.1.0, a new tmsh object 'sys global-settings file-whitelist-path-prefix' controls the path from which config can be loaded. To be allowed as a config storage location, the path must exist in file-whitelist-path-prefix. Because /usr/libexec/ is not part of the path, loading auto-scaling and CloudWatch iCall configuration files from /usr/libexec/aws/ fails.

Conditions:
The issue occurs with AWS auto-scaling- and CloudWatch-related configuration files in TMOS v12.1.0.

Impact:
AWS auto-scaling-related automation and CloudFormation Templates (CFTs) for deploying BIG-IP will not work because 'sys global-settings file-whitelist-path-prefix' disallows /usr/libexec/aws/ is disallowed as legitimate config location.

Workaround:
To work around this, add /usr/libexec/aws/ into the 'sys global-settings file-whitelist-path-prefix'. To do so, run the following tmsh command:

tmsh modify sys global-settings file-whitelist-path-prefix "{/var/local/scf} {/tmp/} {/shared/} {/config/} {/usr/libexec/aws}".

Fix:
Starting in 12.1.0-HF1, F5 Networks has changed the paths from which configuration files related to AWS autoscaling and CloudWatch can be loaded. This necessitates an extra step in the Custom AMI generation for Auto Scaling.

Configuration files related to AWS auto scaling and CloudWatch have been moved to the /usr/share/aws/ directory. This change was made because the system no longer allows /usr/libexec/aws as a config file storage and load location.

12.1.0 and earlier Auto Scaling-related automation and CFT configurations must be modified to point to the new locations. The new locations for the Auto Scaling and CloudWatch config files are:

The new locations for these config files are:
-- /usr/share/aws/autoscale/aws-autoscale-icall-config.
-- /usr/share/aws/metrics/aws-cloudwatch-icall-metrics-config.

Behavior Change:
Starting in 12.1.0-HF1, the system has changed the paths from which configuration files related to AWS autoscaling and CloudWatch can be loaded. This necessitates an extra step in the Custom AMI generation for Auto Scaling.

Configuration files related to AWS auto scaling and CloudWatch have been moved to the /usr/share/aws/ directory. This change was made because the system no longer allows /usr/libexec/aws as a config file storage and load location.

12.1.0 and earlier Auto Scaling-related automation and CFT configurations must be modified to point to the new locations. The new locations for the Auto Scaling and CloudWatch config files are:

The new locations for these config files are:
-- /usr/share/aws/autoscale/aws-autoscale-icall-config.
-- /usr/share/aws/metrics/aws-cloudwatch-icall-metrics-config.

---

590795-1 : tmm crash when loading default signatures or updating classification signature★

Component: Traffic Classification Engine

Symptoms:
When upgrading classification signatures or downgrading to the default signatures, tmm will crash.

Conditions:
This occurs when loading updated classification signatures on versions 12.1.0 and 12.1.1.

Impact:
tmm will crash during the load. Traffic disrupted while tmm restarts.

Fix:
Fixed a crash when loading classification signatures.

---

590779 : Rest API - log profile in json return does not include the partition but needs to

Component: TMOS

Symptoms:
When querying the log profile via the Rest API, the returned response does not include the partition name in FullPath.

For example, for a log profile named mySample:
https://bigip_ip/mgmt/tm/security/log/profile/~Common~mySample/application/mySample

The JSON returned will contain
    "fullPath": "testProfile",
It should contain
    "fullPath": "/Common/testProfile",

This can cause BIG-IQ to fail to sync.

Conditions:
Log profile created. This is most visible when using BIG-IQ to sync.

Impact:
Applications relying on the folder path can fail

Fix:
The Rest API will now provide the full path to the log profile.

---

590601-2 : BIG-IP as SAML SP does not redirect users to original request URI after authentication is completed

Component: Access Policy Manager

Symptoms:
After end-user successfully performs SP initiated SAML SSO with a original request URI other then "/", SP will redirect user back to '/' as landing URI.

Conditions:
BIG-IP is used as SAML SP and no relay state is configured on either SP or IdP

Impact:
User is not redirected to original request URI.

Workaround:
Workaround provided below works when first client request to BIG-IP as SP is 'GET'. This workaround is not applicable when first client request is 'POST'.

SP object can be configured with relay state pointing to the landing URI: %{session.server.landinguri}

After successful authentication, end-user will be redirected to the landing URI (reflected back by IdP in the relay-state).

Fix:
SAML SSO requests will now be redirected to the original request URI.

---

590428-1 : The "ACCESS::session create" iRule command does not work

Component: Access Policy Manager

Symptoms:
When the "ACCESS::session create" iRule command is used with an APM virtual, the command does not resume properly and causing the sessions to disconnect/hang.

Conditions:
APM virtual configured with an iRule that includes "ACCESS::session create" iRule command.

Impact:
APM virtual won't function correctly.

Workaround:
The "ACCESS::session create" iRule command should be removed from the iRule attached to the virtual.

Fix:
Updated the session DB calls to include req_id parameter so that the TCL context gets updated/saved and used upon resume.

---

590345-1 : ACCESS policy running iRule event agent intermittently hangs

Component: Access Policy Manager

Symptoms:
If you are using iRule event agent on the 12.1.0 release, you may see an intermittent Access Policy execution hang. The hang occurs during the execution of ACCESS::policy agent_id.

Conditions:
iRule event agent is configured.
iRule uses ACCESS_POLICY_EVENT_AGENT event
Within this event, ACCESS::policy agent_id command is used.

Impact:
Policy execution intermittently hangs.

Workaround:
Please use this command:
ACCESS::session data get {session.custom_event.id}

Fix:
A hang related to the use of ACCESS::policy agent_id has been fixed.

---

588399-1 : BIG-IP CPU utilization can be high even when all bad actors are detected and mitigated

Component: Anomaly Detection Services

Symptoms:
BIG-IP CPU utilization can be excessively high even after mitigating bad actors.

Conditions:
This can occur when Bad Actor detection is used

Impact:
CPU utilization will be higher than expected.

Fix:
An issue with referencing bad actors that have been detected and affecting CPU utilization has been fixed.

---

588140 : Pool licensing fails in some KVM/OpenStack environments

Component: TMOS

Symptoms:
Licensing a BIG-IP Virtual Edition (VE) from BIG-IQ, BIG-IQ can fail. The system posts the following error in /var/log/ltm: Dossier error 16.

Conditions:
This occurs when BIG-IQ is used to license the BIG-IP VE instance.

Impact:
From BIG-IQ, the licensing operation will appear as a successful operation, however, BIG-IP VE will not be licensed.

Fix:
Licensing a BIG-IP Virtual Edition (VE) from BIG-IQ in OpenStack and/or KVM environments completes with success on BIG-IQ and BIG-IP.

---

587791-1 : Set execute permission on /var/lib/waagent

Component: TMOS

Symptoms:
Due to recent changes of the build process /var/lib/waagent didn't have proper execute permission set. This caused failure in executing user custom scripts during deploying.

Conditions:
First deployment of VM in Azure, which requires executing custom scripts.

Impact:
Custom scripts cannot be executed.

Workaround:
N/A

Fix:
Properly set execute permissions to /var/lib/waagent directory.

---

585905-1 : Citrix Storefront integration mode with pass-through authentication fails

Component: Access Policy Manager

Symptoms:
Citrix Storefront integration mode with pass-through authentication fails. Client fails with error message saying "Authentication service is not reachable"

Conditions:
Citrix Storefront integration mode with only pass-through authentication enabled on the Storefront.

Impact:
Could not use pass through authentication on the storefront for remote access of the store.

Workaround:
None

Fix:
Passthrough authentication could be used for remote-access of the store.

---

583631-2 : Version change in outer SSL Records for ClientHello

Component: Local Traffic Manager

Symptoms:
The outer record for a ClientHello contains the same version as the ClientHello. If, for example, the ClientHello is TLS1.2, the outer record will contain TLS1.2. For older servers that do not support this an alert might be generated closing the connection.

Conditions:
A BIGIP with a server ssl profile supports a TLS version higher than that of the server to which it is connecting.

Impact:
The connection will fail.

Workaround:
Force the server ssl profile to use a lower version number by selecting `No TLSv1.2' or `No TLSv1.1' in the `options' section of the ServerSSL Profile.

Fix:
When enabled by setting the db variable, 'SSL.OuterRecordTls1_0,' to, 'enable,' the outer SSL record will always contain TLS1.0. This is the default.

Behavior Change:
Formerly, the version present in the ClientHello and the version present in the outer record would match. Now, if the sys db variable, 'SSL.OuterRecordTls1_0,' is set to 'enable' the version present in the outer record will be TLS 1.0 regardless of the version in the ClientHello. This is the default.

---

582629-1 : User Sessions lookups are not cleared, session stats show marked as invalid

Component: Application Visibility and Reporting

Symptoms:
AVR session statistics may be reported as excessively high, and when the sessions time out they get marked as invalid instead of being removed.

Conditions:
The exact conditions which cause this in a production configuration are unknown, as this was discovered during internal testing.

Impact:
Session statistics will report incorrectly

Fix:
An issue with session statistics not clearing after session timeout has been fixed.

---

582374-1 : Multiple 'Loading state for virtual server' messages in admd.log

Component: Anomaly Detection Services

Symptoms:
When a dosl7d profile is configured on a BIG-IP that's in a device group and the BIG-IP is set to "Forced Offline" in the Device Management settings, admd will log multiple messages to admd.log similar to 47854390298368 Mar 22 02:38:50 [info] virtual bool CVirtualServerImpl::loadState() : Loading state for virtual server

Conditions:
- dosl7d profile attached to a virtual server
- BIG-IP is part of a DSC cluster
- a BIG-IP is forced offline in the cluster

Impact:
Excessive logging occurs to /var/log/adm/admd.log

Workaround:
None

Fix:
An issue with excessive logging to admd.log has been fixed.

---

581834-5 : Firefox signed plugin for VPN, Endpoint Check, etc

Component: Access Policy Manager

Symptoms:
clients are unable to use the Firefox plugin on Firefox version 47 and above

Conditions:
Clients using Firefox v47 and above attempting to use the Firefox plugin

Impact:
Clients will be unable to use the plugin if they are using Firefox version 47 and above

Fix:
The Firefox plugin now supports all versions.

---

580596-1 : TLS/DTLS 'Lucky 13' vulnerability CVE-2013-0169 / TMM SSL/TLS virtual server vulnerability CVE-2016-6907

Vulnerability Solution Article: SOL14190 SOL39508724

---

576478 : Enable support for the Purpose-Built DDoS Hybrid Defender Platform

Component: Advanced Firewall Manager

Symptoms:
N/A

Conditions:
Requires new DoS License

Impact:
None

Fix:
This fix adds support for recognition of a Purpose-Built DDoS Hybrid Defender license, and the necessary mechanisms to launch the DDoS Application.

Behavior Change:
There is no change in behavior to existing behavior and functionalities. However, when a DoS License is installed, the Big-IP platform takes on the role of a dedicated DoS protection device. Consequently most non-DoS related functionalities are either disabled or function in limited capacity.

---

569467-5 : BIG-IP and BIG-IQ cloud image vulnerability CVE-2016-2084.

Vulnerability Solution Article: SOL11772107

---

569121-1 : Advanced Detection rate limiting can be incorrect in multi-blade clusters when rate limit is low

Component: Anomaly Detection Services

Symptoms:
If you have a large CMP configuration using Advanced Detection and rate limiting with a low rate limit applied, the per-core rate limit on attack traffic can end up being lower than the desired overall rate limit.

Conditions:
This was seen during internal testing with a large number of cores (3 blades / 24 cores) and a very low rate limit applied.

Impact:
Overall rate limit is lower than expected.

Fix:
Improvements were made to rate limiting in environments with a high number of tmms

---

565137 : Pool licensing fails in some KVM/OpenStack environments.

Component: TMOS

Symptoms:
Licensing a BIG-IP Virtual Edition (VE) from BIG-IQ, BIG-IQ can fail. The system posts the following error in /var/log/ltm: Dossier error 16.

Conditions:
This occurs when BIG-IQ is used to license the BIG-IP VE instance.

Impact:
From BIG-IQ, the licensing operation will appear as a successful operation, however, BIG-IP VE will not be licensed.

Workaround:
There is no workaround.

Fix:
Licensing a BIG-IP Virtual Edition (VE) from BIG-IQ in OpenStack and/or KVM environments completes with success on BIG-IQ and BIG-IP.

---

554713-2 : Deployment failed: Failed submitting iControl REST transaction

Component: TMOS

Symptoms:
When deploying an access control policy to a sync group, you notice the following error: Deployment failed:
Failed submitting iControl REST transaction 1445978291443908: remoteSender:ip_address

Conditions:
This can happen on policy sync with a large number of ACLs.

Impact:
The system will function properly, but some transactions may take longer than expected. BIG-IQ deployment of APM access control lists is one known case to fail due to timeouts.

Workaround:
None.

Fix:
The audit log contains every database modification request message sent to mcpd. Certain messages once took an unexpectedly long time to render, which has been fixed.

---

547053-1 : Bad actor quarantining

Component: Anomaly Detection Services

Symptoms:
An issue was found where bad actors could be released from quarantine due to a timing issue

Conditions:
This is a timing issue related to an having unusually high number of bad actors at the same time.

Impact:
Traffic can be removed from quarantine and passed to the web server

Fix:
An issue was fixed related to bad actor quarantining

---

544477 : New Hourly Billable VE instances in AWS and Azure register with F5 Licensing Server for Support.

Component: TMOS

Symptoms:
Phone support is not available for hourly billing customers in cloud marketplaces.

Conditions:
All hourly billing VE instances in AWS Marketplace.

Impact:
Phone support is not available for hourly billing VE instances.

Fix:
New Hourly Billable VE instances in AWS and Azure register with F5 Licensing Server for Support.

Behavior Change:
Changed licensing for hourly billing instances from pre-licensed image to template reg key which must be licensed through the license server.

---

531979-6 : SSL version in the record layer of ClientHello is not set to be the lowest supported version.

Component: Local Traffic Manager

Symptoms:
In the ClientHello message, the system is now setting the SSL version in the record layer to be the same as version value of ClientHello message, which is the highest SSL version now supported.

Although RFC 5246 appendix E.1 does not give specific advice on how to set the TLS versions, the de facto standard used by all major browsers and TLS stacks is to set the ClientHello as follows:

SSL Record:
    Content Type: Handshake (22)
    Version: $LOWEST_VERSION
    Handshake Record:
        Handshake Type: Client Hello (1)
        Version: $HIGHEST_VERSION

The BIG-IP system implementation tells the SSL peer that the system supports only SSL versions from the $HIGHEST_VERSION through the $HIGHEST_VERSION instead of from the $LOWEST_VERSION through the $HIGHEST_VERSION, which effectively limits the range of SSL versions the system can negotiate with the SSL peer.

Conditions:
This issue occurs when the highest SSL version that the BIG-IP system supports does not fall into the range that an SSL peer supports.

For example, with SSL peer support configured for TLS1.0 or TLS1.1, if the BIG-IP system sets the highest SSL version to be TLS1.2, then there will be no version that the SSL peer thinks they have in common, and SSL handshake fails.

Impact:
SSL handshake fails.

Workaround:
There is no workaround for this issue.

Fix:
The SSL version in the record layer of ClientHello is now set to be the lowest supported version, which eliminates that issue that occurred when the highest SSL version that the BIG-IP system supports did not fall into the range that an SSL peer supports.

---

Known Issues in BIG-IP v12.1.x


TMOS Issues

ID Number	Severity	Description
612564	1-Blocking	mysql does not start
614865-1	2-Critical	Overwrite flag in iControl functions key/certificate_import_from_pem functions is ignored and might result in errors.
614296-1	2-Critical	Dynamic routing process ripd may core
613542-2	2-Critical	tmm core while running the iRule STATS:: command
613536-4	2-Critical	tmm core while running the iRule STATS:: command
610295-1	2-Critical	TMM may crash due to internal backplane inconsistency after reprovisioning
606509-2	2-Critical	Incorrect process priority in vCMP guest results in low priority of the guest control-plane, which might cause high availability failover★
605476-3	2-Critical	istatsd can core when reading corrupt stats files.
604011-1	2-Critical	Sync fails when iRule or policy is in use★
601527-4	2-Critical	mcpd memory leak and core
600894-1	2-Critical	In certain situations, the MCPD process can leak memory
598748	2-Critical	IPsec AES-GCM IVs are now based on a monotonically increasing counter
598697	2-Critical	vCMP guests may fail after vCMP host system is upgraded to BIG-IP v12.1.x when 'qemu' user isn't created★
595605	2-Critical	Upgrades from 11.6.1 or recent hotfix rollups to 12.0.0 may fail★
591119	2-Critical	OOM with session messaging may result in TMM crash
591104-1	2-Critical	ospfd cores due to an incorrect debug statement.
588686-4	2-Critical	High-speed logging to remote logging node stops sending logs after all logging nodes go down
583936-5	2-Critical	Removing ECMP route from BGP does not clear route from NSM
583516-2	2-Critical	tmm ASSERT's "valid node" on Active, after timer fire..
580697	2-Critical	VIPRION 2200 platform might not pass traffic properly after FPGA firmware switch.
579210	2-Critical	VIPRION B4400N blades might fail to go Active under rare conditions.
574055-4	2-Critical	TMM crash after changing raccoon log level
567457-2	2-Critical	TMM may crash when changing the IKE peer config.
557680-3	2-Critical	Fast successive MTU changes to IPsec tunnel interface crashes TMM
542097-5	2-Critical	Update to RHEL6 kernel
460833-9	2-Critical	MCPD sync errors and restart after multiple modifications to file object in chassis
442231-4	2-Critical	Pendsect log entries have an unexpected severity
422460-23	2-Critical	TMM may restart on startup/config-load if it has too many objects to publish back during config load
412817-2	2-Critical	BIG-IP system unreachable for IPv6 traffic via PCI pass-through interfaces as current ixgbevf drivers do not support multicast receive.
617229-1	3-Major	Local policy rule descriptions disappear when policy is re-saved
614530-1	3-Major	Dynamic ECMP routes missing from Linux host
614493-1	3-Major	BIG-IP reset on ePVA accelerated flow may contain stale TCP window information.
614180-2	3-Major	ASM is not available in LTM policy when ASM is licensed as the main active module
613415-1	3-Major	Memory leak in ospfd when distribute-list is used
612752	3-Major	UCS load or upgrade may fail under certain conditions.★
611658-1	3-Major	"less" utility logs an error for remotely authenticated users using the tmsh shell
611487-3	3-Major	vCMP: VLAN failsafe does not trigger on guest
610417-1	3-Major	Insecure ciphers included when device adds another device to the trust. TLSv1 is the only protocol supported.
610307-2	3-Major	Spurious error message from mcpd at shutdown: Subscription not found in mcpd for subscriber Id BIGD_Subscriber
610273-2	3-Major	Not possible to do targeted failover with HA Group configured
609200-2	3-Major	Hotfix installation failure using certain version 11.x software to host incremental hotfix application of version 12.x software.★
609186-5	3-Major	TMM or MCP might core while getting connections via iControl.
609119-7	3-Major	Occasionally the logging system prints out a blank message: err mcpd[19114]: 01070711:3:
607961-1	3-Major	Secondary blades restart when modifying a virtual server's route domain in a different partition.
606807-1	3-Major	Discovery appliance may use sensor number instead of name "LCD health" reporting communication error
606330-4	3-Major	The BIG-IP system does not accept BGP connection requests when using peer-groups and no default address family.
605894-1	3-Major	Remote authentication for BIG-IP users can fail
605800-3	3-Major	Web GUI submits changes to multiple pool members as separate transactions
604727-1	3-Major	Upgrade from 10.2.4 to 12.1.0 fails when SNMP trap exists in config from 10.2.4.★
603772-1	3-Major	Floating tunnels with names more than 15 characters may cause issues during config-sync.
603149-2	3-Major	Large ike-phase2-lifetime-kilobytes values in racoon ipsec-policy
602854-2	3-Major	Missing ASM control option from LTM policy rule screen in the Configuration utility
602566-1	3-Major	sod daemon may crash during start-up
602502-2	3-Major	Unable to view the SSL Cert list from the GUI
602193-4	3-Major	iControl REST call to get certificate fails if
601989-2	3-Major	Remote LDAP system authenticated username is case sensitive★
601893-2	3-Major	TMM crash in bwc_ctb_instance_recharge because of pkts_avg_size is zero.
601709-2	3-Major	I2C error recovery for BIGIP 4340N/4300 blades
601502-3	3-Major	Excessive OCSP traffic
601414-1	3-Major	Combined use of session and table irule commands can result in intermittent session lookup failures
601076	3-Major	Fix watchdog event for accelerated compression request overflow
600944-1	3-Major	tmsh does not reset route domain to 0 after cd /Common and loading bash
600558-5	3-Major	Errors logged after deleting user in GUI
599543-1	3-Major	Cannot update (overwrite) PKCS#12 SSL cert & key while referenced in SSL profile
599536-1	3-Major	IPSec peer with wildcard selector brings up wrong phase2 SAs
598650-1	3-Major	apache-ssl-cert objects do not support certificate bundles
598498-7	3-Major	Cannot remove Self IP when an unrelated static ARP entry exists.
598039-7	3-Major	MCP memory may leak when performing a wildcard query
597818-2	3-Major	Unable to configure IPsec NAT-T to "force"
597729-5	3-Major	Errors logged after deleting user in GUI
597601-3	3-Major	Improvement for a previous issue regressed NAT-T
597564-3	3-Major	'tmsh load sys config' incorrectly allows the removal of the 'app-service' statement from configuration items
597303-1	3-Major	"tmsh create net trunk" may fail
596826-5	3-Major	Don't set the mirroring address to a floating self IP address
596815-1	3-Major	System DNS nameserver and search order configuration does not always sync to peers
596104-3	3-Major	VCMP guest fails to load config with HA trunk configured
596067-2	3-Major	GUI on VIPRION hangs on secondary blade reboot
595773-8	3-Major	Cancellation requests for chunked stats queries do not propagate to secondary blades
595693	3-Major	Incorrect PVA indication on B4450 blade
595617-1	3-Major	Modifying an IPsec tunnel and IPsec plus IKE SA does not remove the remote SA.
594426-3	3-Major	Audit forwarding Radius packets may be rejected by Radius server
593361-1	3-Major	The malformed MAC for inner pkt with dummy MAC for NSH with VXLAN-GPE.
592870-2	3-Major	Fast successive MTU changes to IPsec tunnel interface crashes TMM
591261	3-Major	BIG-IP VPR-B4450N shows "unknown" SNMP Object ID
590938-3	3-Major	The CMI rsync daemon may fail to start
590904-1	3-Major	New HA Pair created using serial cable failover only will remain Active/Active
589661	3-Major	PS2 power supply status incorrect after removal
589083-2	3-Major	TMSH and iControl REST: When logged in as a remote user who has the admin role, cannot save config because of permission errors.
588327	3-Major	Observe "err bcm56xxd' liked log from /var/log/ltm
588028-1	3-Major	Clearing alerts from the LCD while the host is down will re-display the alerts on the LCD when the host comes up
587668	3-Major	LCD Checkmark button does not always bring up clearing prompt on VIPRION blades.
585833-1	3-Major	Qkview will abort if /shared partition has less than 2GB free space
585485-5	3-Major	inter-ability with "delete IPSEC-SA" between AZURE, ASA and BIGIP
585332-3	3-Major	Virtual Edition network settings aren't pinned correctly on startup★
584762	3-Major	After restarting bcm56xxd, 5.x interface might show as down.
584583-7	3-Major	Timeout error when attempting to retrieve large dataset.
583754-7	3-Major	When TMM is down, executing 'show ltm persist persist-records' results in a blank error message.
583475-1	3-Major	The BIG-IP may core while recompiling LTM policies
583285-4	3-Major	BIG-IP logs INVALID-SPI messages but does not remove the associated SAs.
583177	3-Major	LCD text truncated by heartbeat icon on VIPRION
582084-1	3-Major	BWC policy in device sync groups.
581945-1	3-Major	Device-group "datasync-global-dg" becomes out-of-sync every hour
581851-1	3-Major	mcpd, interleaving of messages / folder contexts from primary to secondary blade
581811	3-Major	The blade alarm LED may not reflect the warning that non F5 optics is used.
580602-1	3-Major	Configuration containing LTM nodes with IPv6 link-local addresses fail to load.
579529	3-Major	Stats file descriptors kept open in spawned child processes
578064	3-Major	tmsh show sys hardwares show "unavailable" for hard disk manufacturer on B4400/B4450 blade
578036-1	3-Major	incorrect crontab can cause large number of email alerts
576305-8	3-Major	Potential MCPd leak in IPSEC SPD stats query code
575919-2	3-Major	Running concurrent TMSH instances can result in error in access to history file
575649-7	3-Major	MCPd might leak memory in IPFIX destination stats query
575591-5	3-Major	Potential MCPd leak in IKE message stats query code
575589-4	3-Major	Potential MCPd leak in IKE event stats query code
575587-8	3-Major	Potential MCPd leak in BWC policy class stats query code
575176-1	3-Major	Syn Cookie cache statistics on ePVA enabled devices is incremented with UDP traffic
575066-1	3-Major	Management DHCP settings do not take effect
573584	3-Major	CPLD update success logs at the same error level as an update failure
571333-5	3-Major	fastL4 tcp handshake timeout not honored for offloaded flows
569968	3-Major	snmpd core during startup
569331-1	3-Major	Recovery from Amazon Network Failure may associate some virtual addresses to the standby BIG-IP
566507-4	3-Major	Wrong advertised next-hop in BGP for a traffic group in Active-Active deployment
562928-2	3-Major	Curl connections with 'local-port' option fail sometimes over IPsec tunnels when connection.vlankeyed db variable is disabled
561444-1	3-Major	LCD might display incorrect output.
559080-5	3-Major	High Speed Logging to specific destinations stops from individual TMMs
557471-2	3-Major	LTM Policy statistics showing zeros in graphical UI
555039-4	3-Major	VIPRION B2100: Increase egress traffic burst tolerance for dual CoS queue configuration
553795-7	3-Major	Differing certificate/key after successful config-sync
546145-2	3-Major	Creating local user for previously remote user results in incomplete user definition.
527206-1	3-Major	Management interface may flap due to LOP sync error
526708-4	3-Major	system_check shows fan=good on removed PSU of 4000 platform
524123-1	3-Major	iRule ISTATS::remove does not work
521270-1	3-Major	Hypervisor might replace vCMP guest SYN-Cookie secrets
520877-1	3-Major	Alerts sent by the lcdwarn utility are not shown in tmsh
471029-2	3-Major	If the configuration contains a filename with the $ character, then saving the UCS through TMSH fails.
469366-3	3-Major	ConfigSync might fail with modified system-supplied profiles
434573-6	3-Major	Tmsh 'show sys hardware' displays Platform ID instead of platform name
433357	3-Major	Management NIC speed reported as 'none'
424542-5	3-Major	tmsh modify net interface with invalid interface name or attributes will create an interface in cluster or VE environments
400778	3-Major	Message: err chmand[5011]: 012a0003:3: Physical disk CF1/HD1 not found for logical disk delete
400550	3-Major	LCD listener error during shutdown
393270-1	3-Major	Configuration utility may become non-responsive or fail to load.
375434-6	3-Major	HSB lockup might occur when TMM tries unsuccessfully to reset HSB.

Local Traffic Manager Issues

ID Number	Severity	Description
616215-4	2-Critical	TMM can core when using LB::detach and TCP::notify commands in an iRule
612229-1	2-Critical	TMM may crash if LTM a disable policy action for 'LTM Policy' is not last
609628-1	2-Critical	CLIENTSSL_SERVERHELLO_SEND event in SSL forward proxy is not raised when client reuses session
608555-3	2-Critical	Configuring asymmetric routing with a VE rate limited license will result in tmm crash
608304-1	2-Critical	TMM crash on memory corruption
607724-2	2-Critical	TMM may crash when in Fallback state.
607524-1	2-Critical	Memory leak when multiple DHCP servers are configured, and the last DHCP server configured is down.
606573-1	2-Critical	FTP traffic does not work through SNAT when configured without Virtual Server★
605865-4	2-Critical	Debug TMM produces core on certain ICMP PMTUD packets
603700	2-Critical	tmm core on multiple SSL::disable calls
603032-1	2-Critical	clientssl profiles with sni-default enabled may leak X509 objects
602653-1	2-Critical	TMM may crash after updating bot-signatures
599769-4	2-Critical	TMM may crash when managing APM clients.
599135-1	2-Critical	B2250 blades may suffer from high TMM CPU utilisation with tcpdump
598052-1	2-Critical	SSL Forward Proxy "Cache Certificate by Addr-Port", cache lookup fails
591139	2-Critical	TMM QAT segfault after zlib/QAT compression conflation.
588959-5	2-Critical	Standby box may crash or behave abnormally
588351-4	2-Critical	IPv6 fragments are dropped when packet filtering is enabled.
585654	2-Critical	Enhanced implementation of AES in Common Criteria mode
583355-1	2-Critical	The TMM may crash when changing profiles associated with plugins
581746-1	2-Critical	MPTCP traffic handling may cause a BIG-IP outage
575011-1	2-Critical	Fix memory leak.
574880-2	2-Critical	Excessive failures observed when connection rate limit is configured on a fastl4 virtual server.
574153-4	2-Critical	If an ssl client disconnects during the handshake, the SSL flow may stall.
549329-4	2-Critical	L7 mirrored ACK from standby to active box can cause tmm core on active
545810-3	2-Critical	ASSERT in CSP in packet_reuse
488686-3	2-Critical	Large file transfer hangs when HTTP is in passthrough mode
459671-4	2-Critical	iRules source different procs from different partitions and executes the incorrect proc.
615377-4	3-Major	Unexpected rate limiting of unreachable and ICMP messages for some addresses.
613429-2	3-Major	Unable to assign wildcard wide IPs to various BIG-IP DNS objects.
613079-5	3-Major	Diameter monitor watchdog timeout fires after only 3 seconds
612694-1	3-Major	TCP::close with no pool member results in zombie flows
611652-3	3-Major	iRule script validation presents incorrect warning for 'HTTP::cookie cookie-name' command.
611482-3	3-Major	Local persistence record kept alive after owner persistence record times out (when using pool command in an iRule) .
611320-1	3-Major	Mirrored connection on Active unit of HA pair may be unexpectedly torndown
610609-6	3-Major	Total connections in bigtop, SNMP are incorrect
610429-5	3-Major	X509::cert_fields iRule command may memory with subpubkey argument
610302-1	3-Major	Link throughput graphs might be incorrect.
609244-4	3-Major	tmsh show ltm persistence persist-records leaks memory
608024-3	3-Major	Unnecessary DTLS retransmissions occur during handshake.
607803-3	3-Major	DTLS client (serverssl profile) fails to complete resumed handshake.
607304-4	3-Major	TMM is killed by SOD (missing heartbeat) during geoip_reload performing munmap.
607166-1	3-Major	Hidden directories and files are not synchronized to secondary blades
607152-1	3-Major	Large Websocket frames corrupted
606940-1	3-Major	Clustered Multiprocessing (CMP) peer connection may not be removed
606575-6	3-Major	Request-oriented OneConnect load balancing ends when the server returns an error status code.
606565-1	3-Major	TMM may crash when /sys db tm.simultaneousopen is set to reset or drop_connection
605983-1	3-Major	tmrouted may crash when being restarted in debug mode
605682-2	3-Major	With forward proxy enabled, sometimes the client connection will not complete.
605175	3-Major	Backslashes in monitor send and receive strings
604838-1	3-Major	TCP Analytics reports incorrectly reports entities as "Aggregated"
604133-4	3-Major	Ramcache may leave the HTTP Cookie Cache in an inconsistent state
603979-2	3-Major	Data transfer from the BIG-IP system self IP might be slow
603550-1	3-Major	Virtual servers that use both FastL4 and HTTP profiles at same time will have incorrect syn cache stats.
602358-5	3-Major	Some sites need the SSL/TLS ClientHello version sent after receiving the HelloRequest to match the first ClientHello Version
602136-5	3-Major	iRule drop command causes tmm segfault or still sends 3-way handshake to the server.
602040-3	3-Major	Truncated support ID for HTTP protocol security logging profile
601496-3	3-Major	iRules and OCSP Stapling
601178-1	3-Major	HTTP cookie persistence 'preferred' encryption
600614-4	3-Major	External crypto offload fails when SSL connection is renegotiated
600593-1	3-Major	Use of HTTP Explicit Proxy and OneConnect can lead to an issue with CONNECT HTTP requests
599567	3-Major	APM assumes snat automap, does not use snat pool
599054-2	3-Major	LTM policies may incorrectly use those of another virtual server
598874-11	3-Major	GTM Resolver sends FIN after SYN retransmission timeout
597978-3	3-Major	GARPs may be transmitted by active going offline
597708-5	3-Major	Stats are unavailable and VCMP state and status is incorrect
597532-1	3-Major	iRule: RADIUS avp command returns a signed integer
597253-2	3-Major	HTTP::respond tcl command may incorrectly identify parameters as ifiles
597089-7	3-Major	Connections are terminated after 5 seconds when using ePVA full acceleration
596433-2	3-Major	Virtual with lasthop configured rejects request with no route to client.
596242-1	3-Major	[zxfrd] Improperly configured master name server for one zone makes dns express responds with previoius record
593530-4	3-Major	In rare cases, connections may fail to expire
593390-4	3-Major	Profile lookup when selected via iRule ('SSL::profile') might cause memory issues.
592784-2	3-Major	Compression stalls, does not recover, and compression facilities cease.
592497-1	3-Major	Idle timeout ineffective for FIN_WAIT_2 when server-side expired and HTTP in fallback state.
591659-5	3-Major	Server shutdown is propagated to client after X-Cnection: close transformation.
591476-9	3-Major	Stuck nitrox crypto queue can erroneously be reported
591343-5	3-Major	SSL::sessionid output is not consistent with the sessionid field of ServerHello message.
590122-2	3-Major	Standard TLS version rollback detection for TLSv1 or earlier might need to be relaxed to interoperate with clients that violate TLS specification.
589400-1	3-Major	With Nagle disabled, TCP does not send all of xfrags with size greater than MSS.
589223-1	3-Major	TMM crash and core dump when processing SSL protocol alert.
588115-1	3-Major	TMM may crash with traffic to floating self-ip in range overlapping route via unreachable gw
588089-3	3-Major	SSL resumed connections may fail during mirroring
587705-5	3-Major	Persist lookups fail for source_addr with match-across-virtuals when multiple entries exist with different pools.
587016-2	3-Major	SIP monitor in TLS mode marks pool member down after positive response.
586738-4	3-Major	The tmm might crash with a segfault.
586660-1	3-Major	HTTP/ramcache2 and RAM Cache are not compatible.
586621-5	3-Major	SQL monitors 'count' config value does not work as expected.
585813-2	3-Major	SIP monitor with TLS mode fails to find cert and key files.
585412-4	3-Major	SMTPS virtual server with activation-mode allow will RST non-TLS connections with Email bodies with very long lines
584948-1	3-Major	Safenet HSM integration failing after it completes.
584926-1	3-Major	Accelerated compression segfault when devices are all in error state.
584414	3-Major	Deleting persistence-records via tmsh may result in persistence being created to different nodes
584310-1	3-Major	TCP:Collect ignores the 'skip' parameter when used in serverside events
584029-4	3-Major	Fragmented packets may cause tmm to core under heavy load
583957-6	3-Major	The TMM may hang handling pipelined HTTP requests with certain iRule commands.
582331-1	3-Major	Maximum connections is not accurate when TMM load is uneven
582234-5	3-Major	When using a config merge load to disable and then later re-enable a monitored pool member, monitor checking will not start up again.
582207-7	3-Major	MSS may exceed MTU when using HW syncookies
580303-7	3-Major	When going from active to offline, tmm might send a GARP for a floating address.
579926-1	3-Major	HTTP starts dropping traffic for a half-closed connection when in passthrough mode
579843-1	3-Major	tmrouted may not re-announce routes after a specific succession of failover states
579371-4	3-Major	BigIP may generate ARPs after transition to standby
579252-3	3-Major	Traffic can be directed to a less specific virtual during virtual modification
572680-5	3-Major	Standby TMM might overflow send buffer if out of sync with Active TMM
572281-5	3-Major	Variable value in the nesting script of foreach command get reset when there is parking command in the script
569288-6	3-Major	Different LACP key may be used in different blades in a chassis system causing trunking failures
568543-4	3-Major	Syncookie mode is activated on wildcard virtuals
566342	3-Major	Cannot set 10T-FD or 10T-HD on management port
565799-6	3-Major	CPU Usage increases when using masquerade addresses
563933-4	3-Major	[DNS] dns64-additional-section-rewrite v4-only does not rewrite v4 RRs
562267-2	3-Major	FQDN nodes do not support monitor alias destinations.
557358-2	3-Major	TMM SIGSEGV and crash when memory allocation fails.
551208-6	3-Major	Nokia alarms are not deleted due to the outdated alert_nokia.conf.
545796-4	3-Major	[iRule] [Stats] iRule is not generating any stats for executed iRules.
542104-2	3-Major	In rare circumstances, it is possible for the TCP timestamps sent by the BIG-IP system to be inconsistent between blades.
537553-7	3-Major	tmm might crash after modifying virtual server SSL profiles in SNI configuration under load
537209-5	3-Major	Fastl4 profile sends RST packet when idle timeout value set to 'immediate'
536563-3	3-Major	Incoming SYNs that match an existing connection may complete the handshake but will be RST with the cause of 'TCP 3WHS rejected' on subsequent packets.
534457-5	3-Major	Dynamically discovered routes might fail to remirror connections.
530266-4	3-Major	Rate limit configured on a node can be exceeded
506543-3	3-Major	Disabled ephemeral pool members continue to receive new connections
499404-5	3-Major	FastL4 does not honor the MSS override value in the FastL4 profile with syncookies
486735-5	3-Major	Maximum connections is not accurate when TMM load is uneven
483953-1	3-Major	Cached route MTUs may be set to the value of TM.MinPathMTU even if the path MTU is lower than that value.
464801-3	3-Major	Intermittent tmm core
441079-3	3-Major	BIG-IP 2000/4000: Source port on NAT connections are modified when they should be preserved
431480-1	3-Major	Under rare conditions, the TMM process may produce a core file and restart upon failover, with the Assertion 'laddr is not NULL' error message
423392-6	3-Major	tcl_platform is no longer in the static:: namespace
405898-2	3-Major	If the OSPF derived MTU is different from the path MTU, OSPF may not function as expected
374067-7	3-Major	Using CLIENT_ACCEPTED iRule to set SNAT pool on OneConnect virtual server interferes with keepalive connections
371164-1	3-Major	BIG-IP sends ND probes for all masquerading MAC addresses on all VLANs, so MAC might associated with multiple VLANs.
367226-2	3-Major	Outgoing RIP advertisements may have incorrect source port
225634-1	3-Major	The rate class feature does not honor the Burst Size setting.

Performance Issues

ID Number	Severity	Description
599803	1-Blocking	TMM accelerated compression incorrectly destroying in-flight contexts.
588879-2	2-Critical	apmd crash under rare conditions with LDAP in BIGIP 12.0 and beyond

Global Traffic Manager Issues

ID Number	Severity	Description
603598-3	2-Critical	big3d memory under extreme load conditions
587656-2	2-Critical	gtm auto discovery problem with ehf for ID574052
587617-1	2-Critical	While adding GTM server, failure to configure new IP on existing server leads to gtmd core
615338-3	3-Major	The value returned by "matchregion" in an iRule is inconsistent in some cases.
613045-5	3-Major	Interaction between GTM and 10.x LTM results in some virtual servers marked down
602300-1	3-Major	Zone Runner entries cannot be modified when sys DNS starts with IPv6 address
601180-2	3-Major	Link Controller base license does not allow DNS namespace iRule commands.★
589256-1	3-Major	DNSSEC NSEC3 records with different type bitmap for same name.
588289-1	3-Major	GTM is Re-ordering pools when adding pool including order designation
584623-2	3-Major	Response to -list iRules command gets truncated when dealing with MX type wide IP
574052-3	3-Major	GTM autoconf can cause high CPU usage for gtmd
370131-4	3-Major	Loading UCS with low GTM Autoconf Delay drops pool Members from config

Application Security Manager Issues

ID Number	Severity	Description
603945-2	2-Critical	BD config update should be considered as config addition in case of update failure
588049-1	2-Critical	Improve detection of browser capabilities
587629-2	2-Critical	IP exceptions may have issues with route domain
585352-2	2-Critical	bruteForce record selfLink gets corrupted by change to brute force settings in GUI
585120-1	2-Critical	Memory leak in bd under rare scenario
585054-3	2-Critical	BIG-IP imports delay violations incorrectly, causing wrong policy enforcement
611385-1	3-Major	"Learn Explicit Entities" may continue to work as if it is 'Add All Entities'
609496-2	3-Major	Improved diagnostics in BD config update (bd_agent) added
608245	3-Major	Reporting missing parameter details when attack signature is matched against parameter value
604612-1	3-Major	Modified asm cookie violation happens after upgrade to 12.1★
602221-2	3-Major	Wrong parsing of redirect Domain
590851-4	3-Major	"never log" IPs are still reported to AVR
584103-2	3-Major	FPS periodic updates (cron) write errors to log
583686-2	3-Major	High ASCII meta-characters can be disallowed on UTF-8 policy via XML import
582683-2	3-Major	xpath parser doesn't reset a namespace hash value between each and every scan
581991-1	3-Major	Logging filter for remote loggers doesn't work correctly with more than one logging profile
574113-2	3-Major	Block All - Session Tracking Status is not persisted across an auto-sync device group
521370-1	3-Major	Auto-Detect Language policy has disallowed high ASCII meta-characters even after encoding is set to UTF-8
521204-2	3-Major	Include default values in XML Policy Export
518201-4	3-Major	ASM policy creation fails with after upgrading

Application Visibility and Reporting Issues

ID Number	Severity	Description
601056	2-Critical	TCP-Analytics, error message not using rate-limit mechanism can halt TMM
596674-1	2-Critical	High memory usage when using CS features with gzip HTML responses.
575170-2	2-Critical	Analytics reports may not identify virtual servers correctly
601536-1	3-Major	Analytics load error stops load of configuration★
601035	3-Major	TCP-Analytics can fail to collect all the activity
590074-1	3-Major	Wrong value for TCP connections closed measure
588626	3-Major	Analytics alerts: Metric "Maximum TPS" can only be used with Virtual Servers (but not with a Pool Member).

Access Policy Manager Issues

ID Number	Severity	Description
608424-2	2-Critical	Dynamic ACL agent error log message contains garbage data
608408-1	2-Critical	TMM may restart if SSO plugin configuration initialization fails due to internal error in tmconf library
592868-6	2-Critical	Rewrite may crash processing HTML tag with HTML entity in attribute value
591117-3	2-Critical	APM ACL construction may cause TMM to core if TMM is out of memory
582440-4	2-Critical	Linux client does not restore route to the default GW on Ubuntu 15.10
574318-3	2-Critical	Unable to resume session when switching to Protected Workspace
569563-4	2-Critical	Sockets resource leak after loading complex policy
616838-3	3-Major	Citrix Remote desktop resource custom parameter name does not accept hyphen character
613613-2	3-Major	Incorrect handling of form that contains a tag with id=action
611922-1	3-Major	Policy sync fails with policy that includes custom CA Bundle.
611669-2	3-Major	Mac Edge Client customization is not applied on macOS 10.12 Sierra
611478-1	3-Major	Java 8 on MacOS Sierra throws an internal exception when a modifier key (Caps Lock, Shift, Alt, etc) is pressed
611240-2	3-Major	Import of config with securid might fail
610224-2	3-Major	APM client may fetch expired certificate when a valid and an expired certificate co-exist
610180-1	3-Major	SAML Single Logout is misconfigured can cause a minor memory leak in SSO plugin.
605018-2	3-Major	Citrix StoreFront integration mode with pass through authentication fails for browser access
604767-2	3-Major	Importing SAML IdP's metadata on BIG-IP as SP may result in not complete configuration of IdP connector object.
601905-2	3-Major	POST requests may not be forwarded to backend server when EAM plugin is enabled on the virtual server
600872-1	3-Major	Access session inactivity expiration time not updated when accessed with http/2 enabled browsers on Windows platforms.
600811-2	3-Major	CATEGORY::lookup command change in behaviour★
600119-3	3-Major	DNS name resolution for servers outside of Network Access Name Split scope can be slow in some conditions
598981-3	3-Major	APM ACL does not get enforced all the time under certain conditions
598211-1	3-Major	Citrix Android Receiver 3.9 does not work through APM in StoreFront integration mode.
597431-7	3-Major	VPN establishment may fail when computer wakes up from sleep
597214-3	3-Major	Portal Access / JavaScript code which uses reserved keywords for field names in literal object definition may not work correctly
596116-3	3-Major	Ldap Query does not resolve group membership, when required attribute(s) specified
595272-1	3-Major	Edge client may show a windows displaying plain text in some cases
595227-1	3-Major	SWG Custom Category: unable to have a URL in multiple custom categories
594288-1	3-Major	Access profile configured with SWG Transparent results in memory leak.
592414-5	3-Major	IE11 and Chrome throw "Access denied" during access to any generic window property after document.write() into its parent has been performed
591840-1	3-Major	encryption_key in access config is NULL in whitelist
591590-1	3-Major	APM policy sync results are not persisted on target devices
591268-4	3-Major	VS hostname is not resolvable when DNS Relay proxy is installed and running under certain conditions
590820-4	3-Major	Applications that use appendChild() or similar JavaScript functions to build UI might experience slow performance in Microsoft Internet Explorer browser.
588888-3	3-Major	Empty URI rewriting is not done as required by browser.
587419-1	3-Major	TMM may restart when SAML SLO is performed after APM session is closed
586718-1	3-Major	Session variable substitutions are logged
586006-1	3-Major	Failed to retrieve CRLDP list from client certificate if DirName type is present
585562-3	3-Major	VMware View HTML5 client shipped with Horizon 7 does not work through BIG-IP APM in Chrome/Safari
584582-2	3-Major	JavaScript: 'baseURI' property may be handled incorrectly
583113-1	3-Major	NTLM Auth cannot be disabled in HTTP_PROXY_REQUEST event
582752-3	3-Major	Macrocall could be topologically not connected with the rest of policy.
582606-1	3-Major	IPv6 downloads stall when NA IPv4&IPv6 is used.
582526-3	3-Major	Unable to display and edit huge policies (more than 4000 elements)
580893-5	3-Major	Support for Single FQDN usage with Citrix Storefront Integration mode
573643-3	3-Major	flash.utils.Proxy functionality is not negotiated
572558-1	3-Major	Internet Explorer: incorrect handling of document.write() to closed document
572519-1	3-Major	More than one header name/value pair not accepted by ACCESS::respond
569309-3	3-Major	Clientside HTML parser does not recognize HTML event attributes without value
562636-2	3-Major	Possible memory exhaustion in access end-user interface pages for transparent proxy/SWG cases.
561348-6	3-Major	krb5.conf file is not synchronized between blades and not backed up
560601-1	3-Major	HTML5 File API and MediaSource URLs are blocked in Portal Access
554504	3-Major	Client OS version not logged in Browser/OS Reports for iOS client devices
553063-3	3-Major	Epsec version rolls back to previous version on a reboot
552444-1	3-Major	Dynamic drive mapping in network access may not work if path is received via session variable from LDAP/AD
543344-3	3-Major	ACCESS iRule commands do not work reliably in HTTP_PROXY_REQUEST event
541261-3	3-Major	Clientless NA fails when iRule agent is present in access policy
535119-1	3-Major	APM log tables initial rotation in MySQL may be wrong
530109-2	3-Major	OCSP Agent does not honor the AIA setting in the client cert even though 'Ignore AIA' option is disabled.
530092-2	3-Major	AD/LDAP groupmapping is overencoding group names with backslashes
527119-4	3-Major	Iframe document body could be null after iframe creation in rewritten document.
526519-1	3-Major	APM sessiondump command can produce binary data
525429-11	3-Major	DTLS renegotiation sequence number compatibility
525378	3-Major	iRule commands do not validate session scope
509596-1	3-Major	iFrames with 'javascript:' scheme in SRC may not work
503842-2	3-Major	MS WebService html component doesn't work after rewriting
494135-1	3-Major	HTML Event handlers may not work if 'eval' is redefined
482625-1	3-Major	Pages with utf-8 Content-Type and utf-16 META tag do not render
450136-3	3-Major	Occasionally customers see chunk boundaries as part of HTTP response
369407-3	3-Major	Access policy objects are created inconsistently depending on whether created using wizard or manually.
238444-3	3-Major	An L4 ACL has no effect when a layered virtual server is used.

Service Provider Issues

ID Number	Severity	Description
613297-3	2-Critical	Default generic message routing profile settings may core
612135-3	2-Critical	Virtual with GenericMessage profile without MessageRouter profile will core when receiving traffic
596631-1	2-Critical	SIP MRF: Wrong listener may be deleted during media deny-listener deletions, causing crash later
612143-3	3-Major	Potential tmm core when two connections add the same persistence record simultaneously.
609575-5	3-Major	BIG-IP drops ACKs containing no max-forwards header
609328-3	3-Major	SIP Parser incorrectly parsers empty header
607713-3	3-Major	SIP Parser fails header with multiple sequential separators inside quoted string.
603019-3	3-Major	Inserted SIP VIA branch parameter not unique between INVITE and ACK
601255-1	3-Major	RTSP response to SETUP request has incorrect client_port attribute
599521-4	3-Major	Persistence entries not added if message is routed via an iRule
598854-3	3-Major	sipdb tool incorrectly displays persistence records without a pool name
598700-4	3-Major	MRF SIP Bidirectional Persistence does not work with multiple virtual servers
597835-5	3-Major	Branch parameter in inserted VIA header not consistent as per spec
583101-2	3-Major	ADAPT::result bypass after continue causes bad state transition
583010-4	3-Major	Sending a SIP invite with "tel" URI fails with a reset
578564-4	3-Major	ICAP: Client RST when HTTP::respond in HTTP_RESPONSE_RELEASE after ICAP REQMOD returned HTTP response
573075-4	3-Major	ADAPT recursive loop when handling successive iRule events
566576-6	3-Major	ICAP/OneConnect reuses connection while previous response is in progress

Advanced Firewall Manager Issues

ID Number	Severity	Description
609095-2	2-Critical	mcpd memory grows when updating firewall rules
598294-1	2-Critical	In rare cases, tmm might crash with ASM enabled.
610129-1	3-Major	Config load failure when cluster management IP is not defined, but instead uses address-list.
605427-1	3-Major	TMM may crash when adding and removing virtual servers with security log profiles
596809-1	3-Major	It is possible to create ssh rules with blank space for auth-info
596502-2	3-Major	Unable to force Bot Defense action to Allow in iRule
594869-4	3-Major	AFM can log DoS attack against the internal mpi interface and not the actual interface
593925-1	3-Major	ssh profile should not contain rules that begin and end with spaces (cannot be deleted)
593696-1	3-Major	Sync fails when deleting an ssh profile
592113-3	3-Major	tmm core on the standby unit with dos vectors configured
590805-1	3-Major	Active Rules page displays a different time zone.

Policy Enforcement Manager Issues

ID Number	Severity	Description
611467-1	2-Critical	TMM coredump at dhcpv4_server_set_flow_key().
593070-6	2-Critical	TMM may crash with multiple IP addresses per session
472860-5	2-Critical	RADIUS session statistics for the subscribers created with an iRule running on the RADIUS virtual server are not incremented.
617014-2	3-Major	tmm core using PEM
608742-2	3-Major	DHCP: DHCP renew ack messages from server are getting dropped by BIGIP in Forward mode.
608591-4	3-Major	Subscriber ID type should be set to NAI over Diameter for DHCP discovered subscribers
592070-5	3-Major	DHCP server connFlow when created based on the DHCP client connFlow does not have the traffic group ID copied
588456-4	3-Major	PEM deletes existing PEM Subscriber Session after lease time expires (DHCP renewal not processed).
577863-6	3-Major	DHCP relay not forwarding server DHCPOFFER and DHCPACK message after sometime
577814-6	3-Major	MCPd might leak memory in PEM stats queries.

Carrier-Grade NAT Issues

ID Number	Severity	Description
587106-1	2-Critical	Inbound connections are reset prematurely when zombie timeout is configured.
584921-1	2-Critical	Inbound connections fail to keep port block alive

Global Traffic Manager (DNS) Issues

ID Number	Severity	Description
609527-2	3-Major	DNS cache local zone not properly copying recursion desired (RD) flag in response
607658-1	3-Major	GUI becomes unresponsive when managing GSLB Pool
605260-1	3-Major	[GUI] Changes can not be made to GTM listener in partition with default route domain <> 0
581824-2	3-Major	"Instance not found" error when viewing the properties of GSLB monitors gateway_icmp and bigip_link.

Device Management Issues

ID Number	Severity	Description
606518-1	2-Critical	iControl REST with 3rd party auth does not function as expected with '@' / email addresses as username.

iApp Technology Issues

ID Number	Severity	Description
603605-1	2-Critical	Cannot install DoS Hybrid Defender on standby device in HA pair if it's already installed on active
608373-1	3-Major	Some iApp LX packages will not be saved during upgrade or UCS save/restore

 

Known Issue details for BIG-IP v12.1.x

617229-1 : Local policy rule descriptions disappear when policy is re-saved

Component: TMOS

Symptoms:
Local policy rule descriptions disappear when policy is re-saved.

Conditions:
A rule with description exists, and the policy it's under is saved.

Impact:
An existing rule description disappears when the policy it's under is saved.

Workaround:
Use TMSH to modify the policy's properties.

---

617014-2 : tmm core using PEM

Component: Policy Enforcement Manager

Symptoms:
tmm core when using PEM with cloning monitored traffic

Conditions:
Using PEM with iRules and cloning traffic

Impact:
Traffic disrupted while tmm restarts.

---

616838-3 : Citrix Remote desktop resource custom parameter name does not accept hyphen character

Component: Access Policy Manager

Symptoms:
While adding the custom parameter in Citrix Resource would give parser error as following,

01070734:3: Configuration error: apm resource remote-desktop /Common/ctx_resource: Parse error on line 1: DesktopViewer-ForceFullScreenStartup=On"

Conditions:
Having Citrix resource with custom parameter name with hyphen character

Impact:
Custom parameter can not be used with hyphen character

Workaround:
None

---

616215-4 : TMM can core when using LB::detach and TCP::notify commands in an iRule

Component: Local Traffic Manager

Symptoms:
TMM cores when running an iRule that has the LB::detach command before the TCP::notify command.

Conditions:
A virtual server with an iRule that has the LB::detach command executed before the TCP::notify command.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
Avoid the combination of the TCP::notify and LB::detach commands.

---

615377-4 : Unexpected rate limiting of unreachable and ICMP messages for some addresses.

Component: Local Traffic Manager

Symptoms:
The BIG-IP system might fail to send RSTs, ICMP unreachable, or ICMP echo responses for some addresses.

/var/log/ltm might contain messages similar to the following:
-- Limiting icmp unreach response from 251 to 250 packets/sec.
-- Limiting icmp ping response from 251 to 250 packets/sec.
-- Limiting closed port RST response from 251 to 250 packets/sec.

Conditions:
Certain traffic patterns to addresses in two or more different traffic-groups.

Impact:
Certain response messages from addresses in one or more traffic-groups (but not all) might be rate limited by the BIG-IP system even though the level of traffic has not exceeded the tm.maxrejectrate setting.

Workaround:
None known.

---

615338-3 : The value returned by "matchregion" in an iRule is inconsistent in some cases.

Component: Global Traffic Manager

Symptoms:
The value returned by "matchregion" in an iRule is inconsistent when the GTM global setting, "cache-ldns-servers", is set to "yes" and the region contains a region, continent, country, state, or ISP.

Conditions:
The GTM global setting, "cache-ldns-servers" must be set to "yes" and the region must contain a region, continent, country, state, or ISP.

Impact:
The value returned by "matchregion" in an iRule is inconsistent and may lead to inconsistent behavior in the iRule.

Workaround:
Set the GTM global setting, "cache-ldns-servers" to "no".

---

614865-1 : Overwrite flag in iControl functions key/certificate_import_from_pem functions is ignored and might result in errors.

Component: TMOS

Symptoms:
Overwrite flag in iControl functions key/certificate_import_from_pem functions is ignored and might result in errors.

Specifically, the functions are:
key_import_from_pem()
certificate_import_from_pem()
key_import_from_pem_v2()
certificate_import_from_pem_v2()

Conditions:
When there is an existing key or certificate on the BIG-IP system, and you want to overwrite them using key_import_from_pem(), certificate_import_from_pem(), key_import_from_pem_v2(), or certificate_import_from_pem_v2() iControl calls, it results in errors stating that the key or certificate already exists on the BIG-IP system.

Impact:
Cannot overwrite the key/certificate file-objects using these iControl calls.

Workaround:
There are two workarounds:
- Delete and import the key/certificate using key_import_from_pem(), certificate_import_from_pem(), key_import_from_pem_v2(), or certificate_import_from_pem_v2() iControl calls.

- Use key_import_from_file and certificate_import_from_file iControl calls as an alternative to import key/certificate from a file.

---

614530-1 : Dynamic ECMP routes missing from Linux host

Component: TMOS

Symptoms:
When an ECMP route is learned via dynamic routing, it is not added to the Linux host and local processes may not be able to reach the destination prefix. Load balanced traffic is not affected.

Conditions:
Dynamic routing in use, ECMP configured, ECMP route received from neighbors.

Impact:
Monitors may fail, other host-originated traffic may be sent out the wrong interface or nowhere at all.

Workaround:
Disable ECMP in ZebOS by setting "maximum-paths 1" in imish.

---

614493-1 : BIG-IP reset on ePVA accelerated flow may contain stale TCP window information.

Component: TMOS

Symptoms:
Reset sent by BIG-IP system on ePVA accelerated active flows might contain stale sequence number and ACK number, which might be out of the receiver's valid RST window.

Conditions:
For example, server side pool member down events lead to BIG-IP reset of all client flows on the pool member. If these flows are actively offloaded in ePVA with heavy traffic at the time of pool member down and reset sending out time, the SEQ/ACK number for the sending RST by BIG-IP SW might not be recent, and therefore a RST with most SW aware SEQ/ACK will be encoded.

Impact:
These RST might be ignored by the receiver if it is out of the valid window. The receiver must rely on the idle or alive timeout to clean this up. Although the receiver must rely on its TCP alive or idle timeout to activate in order to clean up these connections, this is the standard TCP stack behavior.

Workaround:
None.

---

614296-1 : Dynamic routing process ripd may core

Component: TMOS

Symptoms:
As a result of a known issue the dynamic routing protocol daemon ripd, used for the RIP protocol may produce a core file when configuring it to use a interface configured with multiple self IP addresses on different subnets on the same VLAN.

Conditions:
- Use the RIP dynamic routing on an affected version.
- Have multiple self IP addresses belonging to different subnets on the same VLAN
- Add one of the subnets with the network command within the "router RIP" stanza.

Impact:
ripd will core and the configuration will not be allowed.

Workaround:
Configure one subnet/self IP address per VLAN.

---

614180-2 : ASM is not available in LTM policy when ASM is licensed as the main active module

Component: TMOS

Symptoms:
ASM is not available in LTM policy rule creation when ASM is licensed as the main active module

Conditions:
ASM is licensed as the main active module

Impact:
ASM is not available in LTM policy rule creation

Workaround:
Use a license that has ASM as a sub-module. For example, LTM with Best Bundle.

---

613613-2 : Incorrect handling of form that contains a tag with id=action

Component: Access Policy Manager

Symptoms:
In some cases, a form with an absolute path in the action is handled incorrectly in Internet Explorer (IE) versions 7, 8, and 9. The resulting action path is wrong and the form cannot be submitted.

Conditions:
This issue occurs under these conditions:
-- HTML Form with absolute action path.
-- A tag with id=action inside this form.
-- A submit button in the form.
-- IE versions 7 through 9.

Impact:
The impact of this issue is that the web application can not work as expected.

Workaround:
This issue has no workaround at this time.

---

613542-2 : tmm core while running the iRule STATS:: command

Component: TMOS

Symptoms:
With an iRule that runs the STATS::set command inside the ACCESS_SESSION_CLOSED event, tmm cores.

Conditions:
STATS:: command invoked inside the ACCESS_SESSION_CLOSED event. This event does not have all of the connection information so invoking STATS:: to store data from the connection will fail and cause tmm to crash.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
Do not use STATS::set inside ACCESS_SESSION_CLOSED

---

613536-4 : tmm core while running the iRule STATS:: command

Component: TMOS

Symptoms:
With an iRule that runs the STATS::set command inside the ACCESS_SESSION_CLOSED event, tmm cores.

Conditions:
STATS:: command invoked inside the ACCESS_SESSION_CLOSED event. This event does not have all of the connection information so invoking STATS:: to store data from the connection will fail and cause tmm to crash.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
Do not use STATS::set inside ACCESS_SESSION_CLOSED

---

613429-2 : Unable to assign wildcard wide IPs to various BIG-IP DNS objects.

Component: Local Traffic Manager

Symptoms:
Assigning a wide IP with wildcard characters in the name to a DHS distributed application may not work properly when done via tmsh, and such configurations created via the GUI will result in configuration files that fail to load.

Conditions:
A wide IP with a wildcard character in its name.

Impact:
Unable to assign wide IP to BIG-IP DNS distributed-app.

Workaround:
None.

---

613415-1 : Memory leak in ospfd when distribute-list is used

Component: TMOS

Symptoms:
Memory might be leaked when a distribute-list is used to filter routes between OSPFv2 and the Routing Information Base (RIB). The leak may lead to a the daemon being terminated via the oom-killer.

Conditions:
OSPFv2 in use with a distribute-list, and Link State Advertisements (LSAs) in the database whose prefixes will be filtered by the distribute-list.

Impact:
ospfd may leak memory until the system terminates the process via the oom-killer.

Workaround:
Position the BIG-IP system in the network so there are no LSAs that need to be filtered using a distribute-list, such as in a stub area.

---

613297-3 : Default generic message routing profile settings may core

Component: Service Provider

Symptoms:
If a virtual is created using the default generic message profile, the first packet received will produce an infinite number of messages and overflow the internal buffers.

Conditions:
The default generic message profile has the internal parser enabled but a zero byte message separator pattern. This causes the parser when receiving traffic to create an infinite number of empty packets and overflow the system.

Impact:
The infinite number of message will cause an internal panic producing a core. Traffic disrupted while tmm restarts.

Workaround:
Each usage of generic message should either provide a separator pattern or disable the internal parser.

---

613079-5 : Diameter monitor watchdog timeout fires after only 3 seconds

Component: Local Traffic Manager

Symptoms:
The Diameter monitor has a 3-second timeout that overrides the interval and timeout settings configured for the monitor.

Conditions:
A Diameter monitor must be configured.

Impact:
If the Diameter server takes longer than 3 seconds to reply to requests, it will be marked down.

Workaround:
None.

---

613045-5 : Interaction between GTM and 10.x LTM results in some virtual servers marked down

Component: Global Traffic Manager

Symptoms:
Some GTM virtual servers are never marked up when interacting with 10.x LTM.

Conditions:
1. On a GTM server, with autoconf off, manually create a virtual server that is using translated IP/port and either no LTM virtual server name or an incorrect LTM virtual server name.
2. Make sure the LTM virtual server is available.

Impact:
On the GTM side, that LTM virtual server will never get marked up.

Workaround:
None.

---

612752 : UCS load or upgrade may fail under certain conditions.★

Component: TMOS

Symptoms:
UCS load fails, with the following error message: loaddb[20786]: 01080023:3: Error return while getting reply from mcpd: 0x10718e6, 010718e6:3: The requested primary admin user (user1) must exist in local user database.

Conditions:
Root login is disabled and the primary administrative user is set to anything other than 'admin', the default.

Impact:
UCS load or upgrade will fail.

Workaround:
Before upgrading or generating the UCS, re-enable the root account by setting DB variable systemauth.disablerootlogin to 'false'.

Unset the custom primary administrative user by setting DB variable systemauth.primaryadminuser to 'admin'.

These settings may be safely reinstated after the upgrade is complete.

---

612694-1 : TCP::close with no pool member results in zombie flows

Component: Local Traffic Manager

Symptoms:
'tmsh show sys conn all-properties' shows connections whose idle time exceeds the timeout.

Conditions:
There is no pool member, and a TCP::close iRule activates (typically after a TCP::respond).

Impact:
Connection does not tear itself down.

Workaround:
Make TCP::close conditional on pool failure, and rely on the pool failure to RST the connection rather than perform a clean TCP close.

---

612564 : mysql does not start

Component: TMOS

Symptoms:
ASM storage initialization does not happen.

Conditions:
BIG-IP iSeries platforms; this occurs after new software install.

Impact:
Application is non-functional.

Workaround:
remove the sentinel file ;
/appdata/mprov/local/HD1.4/mysqldb/.moved.to.asmdbvol.
and reboot.

---

612229-1 : TMM may crash if LTM a disable policy action for 'LTM Policy' is not last

Component: Local Traffic Manager

Symptoms:
TMM may crash while processing an LTM policy.

Conditions:
- VIP with LTM policy attached.
- LTM policy contains rule with 2 or more actions.
- Policy action of disable - LTMN Policy is not the last one in the list of actions.

Impact:
TMM crash with the following in one of the /var/log/tmm log files:
notice ** SIGABRT **
Traffic disrupted while tmm restarts.

Workaround:
Ensure any LTM policy disable action is the last in the list of actions.

---

612143-3 : Potential tmm core when two connections add the same persistence record simultaneously.

Component: Service Provider

Symptoms:
If two messages processed on different connections with the same persistence key add a persistence record at the same time, one add operation is returned a non-fatal error, stating the 'a' record exists. The error might cause the message to be sent to both the destination and the originator, which fails.

Conditions:
Two messages processed on different connections with the same persistence key add a persistence record at the same time.

Impact:
A potential core occurs. The error might cause the message to be sent to both the destination and the originator, which fails. Traffic disrupted while tmm restarts.

Workaround:
None.

---

612135-3 : Virtual with GenericMessage profile without MessageRouter profile will core when receiving traffic

Component: Service Provider

Symptoms:
Configuring a virtual server with generic message profile without message routing profile will core when a packet is received by the virtual.

Conditions:
Configuring a virtual server with generic message profile without message routing profile.

Impact:
The system will core when a packet is received by the virtual server. Traffic disrupted while tmm restarts.

Workaround:
Each virtual server that contains a generic message profile should also have a message routing profile.

---

611922-1 : Policy sync fails with policy that includes custom CA Bundle.

Component: Access Policy Manager

Symptoms:
Policy sync fails with a policy that includes a custom CA Bundle with an error similar to the following: mcpd[6191]: 01070710:3: Database error (65), Can't set attribute value, type:certificate_summary attribute:name.

Conditions:
- Add a custom certificate bundle
- Add it to a policy, e.g. create an LTM SSL CA profile and add it to the endpoint security check agent in the access policy.
- Initiate a policy sync.

Impact:
Policy sync fails.

Workaround:
Use a built-in certificate bundle on source device and sync the policy.

Import the custom certificate bundle to all devices

Replace the built-in certificate bundle with the custom one in the policy.

---

611669-2 : Mac Edge Client customization is not applied on macOS 10.12 Sierra

Component: Access Policy Manager

Symptoms:
Mac Edge Client's Icon, application name, company name amongts other things can be customized on BIG-IP before deploying on end user's machine. But on Mac Edge Client on macOS 10.12 Sierra this customization is not applied.

Conditions:
macOS Sierra 10.12, Edge client, customization

Impact:
Mac Edge Client customization is not applied on macOS 10.12 Sierra. Functionally there should be no impact except that user will see default application visually.

Workaround:
run following command on Terminal and re-launch Edge client:
$ defaults write -globalDomain AppleLanguages -array "en" "en-US"

---

611658-1 : "less" utility logs an error for remotely authenticated users using the tmsh shell

Component: TMOS

Symptoms:
when using 'less' Syntax Error: unexpected argument "/usr/bin/lesspipe.sh"

Conditions:
admin user configured with tmsh shell

Impact:
admin user cannot use the less command from shell

Workaround:
configure admin user to use the bash shell

---

611652-3 : iRule script validation presents incorrect warning for 'HTTP::cookie cookie-name' command.

Component: Local Traffic Manager

Symptoms:
While saving an iRule containing HTTP::cookie without the value parameter, you get a validation warning: 'warning: [The following errors were not caught before. Please correct the script in order to avoid future disruption. 'unexpected end of arguments;expected argument spec:COOKIE_NAME"160 25][HTTP::cookie $cookie_name]'.

The offending iRule command looks similar to this:
[HTTP::cookie $cookie_name]

Conditions:
iRules containing HTTP::cookie, but missing the optional value parameter, e.g. [HTTP::cookie $cookie_name].

Impact:
Validation warning incorrectly occurs if the optional 'value' parameter is left off. Note that the iRule is still loaded into the configuration.

Workaround:
Use the 'value' parameter in the HTTP::cookie command:
[HTTP::cookie value $cookie_name].

---

611487-3 : vCMP: VLAN failsafe does not trigger on guest

Component: TMOS

Symptoms:
vCMP: VLAN failsafe does not trigger on guest due to IPv6 link-local neighbor discovery traffic from host.

Conditions:
vCMP host configured, VLAN failsafe enabled on a VLAN, one or more VCMP guests enabled that use that VLAN

Impact:
Since the heartbeat messages going over IPv6 link-local addresses continue to be successfully passed from host to guest, VLAN failsafe does not trigger if a downstream router or switch goes down that's connected to the VLAN.

Workaround:
If you are able to, disabling IPv6 on the host will allow VLAN failsafe to work as expected.

---

611482-3 : Local persistence record kept alive after owner persistence record times out (when using pool command in an iRule) .

Component: Local Traffic Manager

Symptoms:
Local persistence record kept alive after owner persistence record times out (when using pool command in an iRule).

Conditions:
Universal persistence is configured. A loop of HTTP request is sent to tmm which doesn't own the record. Persistence lookup is performed, but finally the pool command is used for load-balancing pick.

Impact:
Discrepancy between persistence records.

Workaround:
Use persist, not pool command, to bind persistence record to a flow.

---

611478-1 : Java 8 on MacOS Sierra throws an internal exception when a modifier key (Caps Lock, Shift, Alt, etc) is pressed

Component: Access Policy Manager

Symptoms:
On MacOS Sierra, the recent builds of Java 8 (namely, Updates 91, 101 and 102) all throw an internal exception for applets when a modifier key (Caps Lock, Alt, Shift, etc) is pressed.

There is an Oracle bug opened for this matter:
http://bugs.java.com/bugdatabase/view_bug.do?bug_id=JDK-8166040

This applies to all the UI applets capturing user's input, not only F5 JavaRDP.

Conditions:
MacOS Sierra with Java 8 installed.

Impact:
In window mode, a modal dialog is shown prompting user to either continue and ignore the internal error ("Continue" button) or terminate the Java process ("Crash").
If user clicks "Continue", they can still work on in their remote desktop session.

The things are getting worse for the fullscreen mode as this dialog is hidden from the user so that they can't do anything and get an impression of the remote session being frozen.

Workaround:
Java 9 EarlyAccess is not affected so could be possibly used instead of Java 8 for launching applets.

---

611467-1 : TMM coredump at dhcpv4_server_set_flow_key().

Component: Policy Enforcement Manager

Symptoms:
TMM coredump at dhcpv4_server_set_flow_key().

Conditions:
Two client connflows share a server connflow. The first client connflow expires and then server side packet arrives, dhcp software tries to use the expired client connflow for packet forwarding.

Two client connflows share a server connflow when a client with IP address sends broadcast DHCP packet (for example, for DHCP renewal), and then another client without IP address does a DHCP DORA process. The BIT-IP system will create a different client connflow for each client, and a server connflow shared by two client connflows.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
The client uses broadcast to do DHCP renewal is an indication the client did not get ACK from DHCP server when it uses unicast to talk to DHCP server directly. The most likely reason for this to happen is the server routing table is not configured to send DHCP ACK packets back to the client.

You can work around this problem by configuring DHCP server routing table so that it knows how to send DHCP ACK to the client.

---

611385-1 : "Learn Explicit Entities" may continue to work as if it is 'Add All Entities'

Component: Application Security Manager

Symptoms:
Under some scenarios, setting "Learn Explicit Entities" to 'Never' has no effect; it continues to work as if it is 'Add All Entities'

Conditions:
Steps to Reproduce:
1) Create a default policy, set "Learn New HTTP URLs" to "Add All Entities".
2) Create a non-pure wildcard URL "/in*".
3) Send the following request:
     GET /index.html HTTP/1.1\r\n
     Host: <Host URL>\r\n
     \r\n
4) There will be no suggestion to add /index.html URL since learning mode on "/in*" wildcard is "Never" by default.
5) Set "Learn Explicit Entities" to "Add All Entities" on "/in*" wildcard.
6) Send the same traffic again; there will be suggestion to add /index.html URL (which is still correct).
7) Delete all suggestions.
8) Set "Learn Explicit Entities" to "Never" on "/in*" wildcard.
9) Send the same traffic again.

Impact:
There is suggestion to add /index.html URL when there should be no such suggestion since the wildcard is in 'Never' mode now.

Workaround:
Go to "Learning and Blocking Settings", set "Learn New HTTP URLs" to "Never" press "Save", then set it back to "Add All Entities". press "Save" again.

---

611320-1 : Mirrored connection on Active unit of HA pair may be unexpectedly torndown

Component: Local Traffic Manager

Symptoms:
Mirrored connection on Active unit is torn down. TCP connection is RST with cause of 'HA Expire flow'.

Conditions:
Mirrored connection on Standby unit times out due state mismatch with connection on Active unit.

Impact:
Traffic loss.

Workaround:
Disable mirroring.

---

611240-2 : Import of config with securid might fail

Component: Access Policy Manager

Symptoms:
Import of the profile used for securid auth might fail if the profile has already been used for auth purposes at the moment of export.

Conditions:
This occurs when the following conditions are met:
-- Profile configured for securid authenticaiton with securid server attached.
-- Profile has been used for authentication more than 0 times.
-- Full import (no reuse) or Reuse import when secureid server under the same name is not present.

Impact:
Unable to import certain configurations.

Workaround:
1. In VPE, open securid auth item and set server to none before export.
2. Export profile.
3. Import profile.
4. Re-create the aaa securid server.
5. In VPE, open the securid auth item and set server to one from step #4.

Or
1. Export profile.
2. Create aaa securid server under the same name.
2. Import profile with reuse.

It is also possible to remove securid entry from config-files of securid server configuration in .conf.tar.gz, which would also work.

---

610609-6 : Total connections in bigtop, SNMP are incorrect

Component: Local Traffic Manager

Symptoms:
While looking at total connections for the active BIG-IP using bigtop or SNMP, the connections are reported too high. For example if you sent a single connection through BIG-IP it is reported as 2 connections. Meanwhile, the standby device with mirroring configured accurately shows the number of connections.

Conditions:
This occurs on PVA-enabled hardware platforms.

Impact:
The total connection count statistic is incorrect.

---

610429-5 : X509::cert_fields iRule command may memory with subpubkey argument

Component: Local Traffic Manager

Symptoms:
The X509::cert_fields iRule command can leak memory in the 'method' memory subsystem if called with the 'subpubkey' argument, when the 'subpubkey' argument is not the last argument.

Conditions:
Create an iRule using X509::cert_fields where the subpubkey is not the last argument.

Example/signature to look for:
ltm rule rule_leak {
    when HTTP_REQUEST {
        if { [SSL::cert 0] ne "" } {
            HTTP::respond 200 content "[X509::cert_fields [SSL::cert 0] 0 subpubkey hash]\n"
        } else {
            HTTP::respond 200 content "no client cert (WRONG!)"
        }
    }
}

Impact:
Memory will leak, eventually impacting the operation of tmm.

Workaround:
Ensure that 'subpubkey' is the last argument to X509::cert_fields

---

610417-1 : Insecure ciphers included when device adds another device to the trust. TLSv1 is the only protocol supported.

Component: TMOS

Symptoms:
When adding a device to the trust, the SSL connection can use insecure ciphers. Also it will use the undesirable TLSv1 protocol instead of negotiating to the highest safest protocol available which is TLSv1.2

Conditions:
This exists when configuring devices in a device cluster.

Impact:
Unable to configure stronger ciphers for device trust.

Workaround:
None.

---

610307-2 : Spurious error message from mcpd at shutdown: Subscription not found in mcpd for subscriber Id BIGD_Subscriber

Component: TMOS

Symptoms:
This error message may be generated once or twice at shutdown:

01070069:3: Subscription not found in mcpd for subscriber Id BIGD_Subscriber.

Conditions:
Occurs once or twice per boot as a BIG-IP is being shut down or restarted.

Impact:
None. This can be ignored.

Workaround:
No workaround necessary. This message indicates no ill effects and can be ignored.

---

610302-1 : Link throughput graphs might be incorrect.

Component: Local Traffic Manager

Symptoms:
The link throughput performance graphs available in the GTM, DNS or Link Controller modules might show the throughput for the wrong link in the graph.

Conditions:
Multiple links exist and one of the links has a name that is a prefix for the name of one or more other links.

For example, there are two links defined and named "mylink" and "mylink2".

Impact:
The graphs for all links that contain the prefix might show the throughput for the link whose name matches the prefix.

For example, the throughput graphs for both "mylink" and "mylink2" might both show the throughput data for "mylink"

As a result of this issue, the historical link throughput data is gathered and stored incorrectly. This data is used to generate the throughput graphs.

Workaround:
Do not create links where the name of one link forms a prefix for the name of other links.

---

610295-1 : TMM may crash due to internal backplane inconsistency after reprovisioning

Component: TMOS

Symptoms:
In some scenarios on VE platforms TMM may crash due to backplane inconsistency shortly after a provisioning change.

Conditions:
- BigIP VE with performance limited license.
- Additional licensing/provisioning of modules raises performance limits. New TMM processes are started.
- No reboot has occurred after provisioning.

Impact:
TMM may core with panic: "Unexpected backplane address" in /var/log/tmm log files. Traffic disrupted while tmm restarts.

Workaround:
Reboot after provisioning if new license add-on keys raises performance of the BigIP.

---

610273-2 : Not possible to do targeted failover with HA Group configured

Component: TMOS

Symptoms:
With a traffic-group configured to use HA Group, it is not possible to disable the HA Group to perform targeted failover. Running tmsh run sys failover standby traffic-group traffic-group-1 produces an error:
"Unexpected Error: SOD command standby may not be issued for traffic group /Common/traffic-group-1 because it is configured to use HA group."

Conditions:
Traffic-group configured to use HA Group. Versions prior to 12.0.0 allowed you to disable the HA Group to do targeted failover.

Impact:
Unable to force the traffic-group to standby if HA Group is configured. You would need to change it to use a different mode, such as HA Order.

---

610224-2 : APM client may fetch expired certificate when a valid and an expired certificate co-exist

Component: Access Policy Manager

Symptoms:
APM client does not consider the expiration when it matches certificates for Machine Cert Check. If a matching but expired certificate is found before a valid certificate, the expired certificate is used for Machine Cert Check on Windows.

Conditions:
A valid and an expired certificate co-exist in the certificate store.

Impact:
Machine Certificate check fails.

Workaround:
Remove the expired certificate from the store.

---

610180-1 : SAML Single Logout is misconfigured can cause a minor memory leak in SSO plugin.

Component: Access Policy Manager

Symptoms:
When BIG-IP is used as SAML SP, and SLO is not properly configured on associated saml-idp-connector objects, IdP initiated SAML SLO may result in memory leak in SSO plugin.

Conditions:
- BIG-IP is used as SP.
- Associated saml-idp-connector object has 'single-logout-uri' property configured, but 'single-logout-response-uri' property is empty.
- User performs IdP initiated SAML SLO

Impact:
SSO plugin leaks memory

Workaround:
There are two possible workarounds:
- Fix misconfiguration: Configure SLO correctly by adding value to 'single-logout-response-uri' property of IdP connector object.
- Disable SLO by removing single-logout-uri' property of IdP connector object.

---

610129-1 : Config load failure when cluster management IP is not defined, but instead uses address-list.

Component: Advanced Firewall Manager

Symptoms:
In Cluster setup with multiple blades, if configurations do not have management IP addresses assigned to individual blades, but instead assign a cluster management IP address list to the cluster of blades. The configuration load will fail. System posts an error message similar to the following: err mcpd[24235]: 01071824:3: The address list is referenced by one of the rules of the admin IP either directly or in a nested manner, and the entry is of a different address family from that of the Admin IP.

Conditions:
1. Cluster setup with multiple blades.
2. No management IP assigned to individual blades.
3. Assign cluster management IP address list to the cluster of blades.

Impact:
After reboot, configuration load failure on secondary blades.

Workaround:
Define the cluster management IP address as the destination (in rule) without using address list.

---

609628-1 : CLIENTSSL_SERVERHELLO_SEND event in SSL forward proxy is not raised when client reuses session

Component: Local Traffic Manager

Symptoms:
When a client performs an abbreviated handshake by reusing the session from a previously established full handshake, the SSL forward proxy does not raise the CLIENTSSL_SERVERHELLO_SEND event.

Conditions:
This occurs when the following conditions are met:
-- SSL forward proxy configured
-- Session cache is enabled.

Impact:
iRule commands inside of the CLIENTSSL_SERVERHELLO_SEND are only executed for full handshakes but not for abbreviated handshakes; thus any logic that's applied per SSL connection should not run inside of CLIENTSSL_SERVERHELLO_SEND event since it is not reliably raised under all types of handshakes.

Workaround:
To make sure that the CLIENTSSL_SERVERHELLO_SEND event is reliably raised, disable session cache in the client SSL profile.

---

609575-5 : BIG-IP drops ACKs containing no max-forwards header

Component: Service Provider

Symptoms:
When a sip profile is in use and receives an acknowledgment packet missing the Max-Forwards header, BIG-IP will treat the packet as un-forwardable and does not forward the ACK. This can be experienced as a specific cilent being unable to make a call.

Conditions:
This would only be seen when BIG-IP is connected to specific clients that fail to populate the Max-Forwards header on an ACK.

Impact:
BIG-IP treats packets with the missing header as having a value of 0, which means "Do not forward".

---

609527-2 : DNS cache local zone not properly copying recursion desired (RD) flag in response

Component: Global Traffic Manager (DNS)

Symptoms:
When a DNS query sets the RD flag, that setting is supposed to be copied to the response. When a DNS query is handled by a cache local zone, the RD flag is not set properly.

Conditions:
A DNS cache local zone must be configured and a DNS query with the RD flag set must be handled by this local zone.

Impact:
The flag is not set properly in the DNS response. This most likely will only be noticed by protocol validation tools as standard DNS clients generally do not check this bit.

Workaround:
Use an equivalent DNS Express configuration instead of the local zone.

---

609496-2 : Improved diagnostics in BD config update (bd_agent) added

Component: Application Security Manager

Symptoms:
Improved diagnostics in BD config update (bd_agent) are needed.

Conditions:
Further troubleshooting of BD config update transmission is needed.

Impact:
No diagnostics are available.

Workaround:
None.

---

609328-3 : SIP Parser incorrectly parsers empty header

Component: Service Provider

Symptoms:
If a SIP message contains an empty header, the following header will be included as the value of the empty header.

Conditions:
A SIP header without any value will incorrectly cause the next header to be used as the value.

Impact:
If the following header is needed for processing the message, it will not be seen (since it is incorrectly considered the value of the previous header).

---

609244-4 : tmsh show ltm persistence persist-records leaks memory

Component: Local Traffic Manager

Symptoms:
A small memory leak is detected when running the following command: tmsh show ltm persistence persist-records.

Conditions:
This occurs when running tmsh show ltm persistence persist-records.

Impact:
The memory leak is small, however if the command is run constantly the memory growth can become large.

Workaround:
None.

---

609200-2 : Hotfix installation failure using certain version 11.x software to host incremental hotfix application of version 12.x software.★

Component: TMOS

Symptoms:
Hotfix installation fails using certain version 11.x software to host incremental hotfix application of version 12.x software.

Conditions:
This issue occurs when the following conditions are met:
-- Active software is v11.x.
-- Target software is v12.x.
-- This is the first attempt install a hotfix to the installation target.

Impact:
Cannot install hotfix.

Workaround:
Delete the target location, and perform the hotfix installation again.

Subsequent attempts to install the hotfix will automatically install the base release first, which includes the needed DB hash type, and the hotfix will succeed.

---

609186-5 : TMM or MCP might core while getting connections via iControl.

Component: TMOS

Symptoms:
When getting the connections list over iControl using System.Connections.get_list(), TMM or MCP cores or exits.

Conditions:
Using iControl to view all connections, and there is a very large number of connections (1 million or more) in the list.

Impact:
TMM or MCP may core or exit. Traffic disrupted while tmm restarts.

Workaround:
None.

---

609119-7 : Occasionally the logging system prints out a blank message: err mcpd[19114]: 01070711:3:

Component: TMOS

Symptoms:
Occasionally the logging system prints out a blank message, similar to the following example:

-- err mcpd[19114]: 01070711:3:

For this log statement, there is text associated with the error in the bigip_mcpd_error_defs.in file, so something should be logged.

Conditions:
The problem is the result of an exception handler issue in mcpd's File Object validator. The damaged logs can come from anywhere in mcpd, but appear only after a File Object configuration change fails validation. If the problem occurs, it will happen only once per validation error. The damage caused by the exception handler is automatically corrected when the system rewrites the log.

Impact:
Except for the missing log text, the state and behavior of the BIG-IP system is unaffected.

Workaround:
None. The problem corrects automatically when the system rewrites the log.

---

609095-2 : mcpd memory grows when updating firewall rules

Component: Advanced Firewall Manager

Symptoms:
While updating firewall rules such as adding/deleting a blacklist, mcpd memory grows by a small amount with each update.

Conditions:
This can occur when making changes to firewall policies.

Impact:
mcpd memory grows unbounded; over a significant amount of time with many changes and no restarts, mcpd can run out of memory and oom killer can trigger a failover.

---

608742-2 : DHCP: DHCP renew ack messages from server are getting dropped by BIGIP in Forward mode.

Component: Policy Enforcement Manager

Symptoms:
When BIGIP is configured in Forwarding mode, renewal ack message from server in response to unicast renewal message from DHCP clients is getting dropped.

Conditions:
BIG IP in forwarding mode. DHCP clients sending unicast renewal message to DHCP server

Impact:
Unicast DHCP renewal requests are not acked. DHCP clients will send broadcast renewal messages and will be acked by servers.

Workaround:
After unable to receive acks from DHCP servers for unicast DHCP renewal messages, DHCP client will send broadcast DHCP renewal messages and will be acked by DHCP server and acks forwarded by BIGIP and received by DHCP clients.

---

608591-4 : Subscriber ID type should be set to NAI over Diameter for DHCP discovered subscribers

Component: Policy Enforcement Manager

Symptoms:
CCR-I requests from PEM to PCRF have subscriber ID type set to 6 (UNKNOWN) for DHCP subscribers instead of 3 (NAI).

Conditions:
Occurs for DHCP discovered subscribers on a BIG-IP system that uses a PCRF for policy determination.

Impact:
Might impact the way policies are provided from the PCRF.

Workaround:
None

---

608555-3 : Configuring asymmetric routing with a VE rate limited license will result in tmm crash

Component: Local Traffic Manager

Symptoms:
Configuring asymmetric routing with a VE rate limited license results in tmm crash.

Conditions:
Asymmetric routing is configured (i.e., client and/or server ingress and egress travel on different VLANs), and a VE rate limited license is used.

Impact:
tmm might continually crash when passing traffic. Traffic disrupted while tmm restarts.

Workaround:
Do not use asymmetric routing with a rate limited license.

---

608424-2 : Dynamic ACL agent error log message contains garbage data

Component: Access Policy Manager

Symptoms:
Starting in BIG-IP version 12.0.0, Dynamic ACL error log messages might contain garbage data.

Conditions:
This occurs when Dynamic ACL detects incorrect syntax of an ACL entry.

Impact:
The system logs garbage data.

Workaround:
Make sure the ACL entry is correct.

---

608408-1 : TMM may restart if SSO plugin configuration initialization fails due to internal error in tmconf library

Component: Access Policy Manager

Symptoms:
TMM may restart when new SAML SSO configuration is created on BIG-IP systems as SAML IdP. This could also happen when BIG-IP is restarted, or a saved configuration containing SAML SSO objects is loaded on running BIG-IP.

Conditions:
All of the following
- The BIG-IP system is used as SAML IdP
- New SAML SSO configuration is added on BIG-IP
- Rarely occurring internal tmconf error happens when processing newly added configuration.

Impact:
TMM may restart.

Workaround:
None.

---

608373-1 : Some iApp LX packages will not be saved during upgrade or UCS save/restore

Component: iApp Technology

Symptoms:
iApp LX packages that include dependencies on system utilities (like /bin/sh, /bin/bash, python etc.) cannot be imported to iApp LX RPM database.

Conditions:
oApp LX packages that depends on system utilities.

Impact:
iApp LX packages with dependencies will not be restored during upgrade or UCS restore process.

Workaround:
None.

---

608304-1 : TMM crash on memory corruption

Component: Local Traffic Manager

Symptoms:
In rare cases tmm might crash on memory corruption.

Conditions:
It is not known what sequence of events triggers this condition.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
None.

---

608245 : Reporting missing parameter details when attack signature is matched against parameter value

Component: Application Security Manager

Symptoms:
A parameter is shown without parameters details or with garbled parameter details in the local logging GUI.

Conditions:
An attack signature was detected in a parameter value.

Impact:
Bad reporting

Workaround:
N/A

---

608024-3 : Unnecessary DTLS retransmissions occur during handshake.

Component: Local Traffic Manager

Symptoms:
Unnecessary DTLS retransmissions occur during handshake.

Conditions:
During DTLS handshake, unnecessary retransmissions of handshake message may occur on VE platform.

Impact:
Possible DTLS handshake failure on VE platform.

Workaround:
None.

---

607961-1 : Secondary blades restart when modifying a virtual server's route domain in a different partition.

Component: TMOS

Symptoms:
Secondary blades restart when modifying a virtual server's route domain in a different partition. This log signature is in /var/log/ltm before the secondaries restart: err mcpd[1255]: 0107004d:3: Virtual address (/stef/1.1.1.1%0) encodes IP address (1.1.1.1) which differs from supplied IP address field (1.1.1.1%1).

Conditions:
- Multiple blades of vCMP guests in a sync-failover group.
- Route domains created on each device.
- Route domain assigned to a new partition after they were created.

Impact:
Traffic disrupted while secondary blades restart.

Workaround:
None.

---

607803-3 : DTLS client (serverssl profile) fails to complete resumed handshake.

Component: Local Traffic Manager

Symptoms:
DTLS client (serverssl profile) fails to complete resumed handshake.

Conditions:
This occurs when the BIG-IP system acts as a DTLS client.

Impact:
Possible failed resumed handshake.

Workaround:
Disable session reuse.

---

607724-2 : TMM may crash when in Fallback state.

Component: Local Traffic Manager

Symptoms:
There is a chance, when HTTP in Fallback mode, HTTP filter sends Abort event to TCP filter (causing tear down) prematurely while the Aborting triggered by upper filter/proxy is in flight.

TMM may crash when this happens.

Conditions:
It is not known exactly what conditions need to exist to trigger this, but it has been known to trigger when issuing HTTP::respond in the LB_FAILED event in an iRule, and it has been seen only rarely.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
no work around

---

607713-3 : SIP Parser fails header with multiple sequential separators inside quoted string.

Component: Service Provider

Symptoms:
SIP Parser fails header with multiple sequential separators inside quoted string.

Conditions:
If a SIP header contains multiple attribute separators ',' or ';' in an attribute.

Impact:
The SIP parser flags the message as an error. If this occurs in a quote within the attribute, it should be allowed, but it will still fail, Valid SIP messages are failing to be parsed.

Workaround:
None.

---

607658-1 : GUI becomes unresponsive when managing GSLB Pool

Component: Global Traffic Manager (DNS)

Symptoms:
GUI Locks Up and becomes unresponsive. Most major web browsers will complain about slow javascript and prompt you to kill the script.

Conditions:
Managing an A type GSLB pool when hundereds of virtual servers exist. These virtual servers do not have to be associated with the pool you are attempting to manage.

Impact:
Page takes a significantly long time to load.

Workaround:
Manage pools through tmsh, or wait for it to load.

---

607524-1 : Memory leak when multiple DHCP servers are configured, and the last DHCP server configured is down.

Component: Local Traffic Manager

Symptoms:
When the last member of a list of multiple DHCP servers is down, the original DHCP packet from client is not freed and memory is leaked.

Conditions:
Multiple DHCP servers are configured, and the last DHCP server configured is down.

Impact:
Packet memory is leaked.

Workaround:
Remove the last DHCP server that is down, or move it to the middle or front of the server member list.

---

607304-4 : TMM is killed by SOD (missing heartbeat) during geoip_reload performing munmap.

Component: Local Traffic Manager

Symptoms:
TMM is killed by SOD (missing heartbeat) during geoip_reload performing munmap.

Conditions:
This can occur under normal operation, while running the geo_update command.

Impact:
Traffic disrupted while tmm restarts.

---

607166-1 : Hidden directories and files are not synchronized to secondary blades

Component: Local Traffic Manager

Symptoms:
Hidden directories and files (those whose filenames start with '.') that are created on primary blade are not synced to secondary blades.

Existing hidden files that are edited on the primary blade are not synced to secondaries.

Conditions:
Multi-bladed system.

Impact:
The most common uses of hidden files are per-user shell configuration and history.

Workaround:
Manually copy configuration files onto other blades.

---

607152-1 : Large Websocket frames corrupted

Component: Local Traffic Manager

Symptoms:
If large Websocket frames are being sent by the end-point and this transfer is interleaved with frames being sent by the other endpoint, corrupted frames could be sent by BIG-IP.

Conditions:
Websocket profile is attached to the virtual. Large Websocket frames are sent by the end-point. This transfer is interleaved with frames being sent in the other direction.

Impact:
Connection reset because of corrupted frames being received by the end-point.

---

606940-1 : Clustered Multiprocessing (CMP) peer connection may not be removed

Component: Local Traffic Manager

Symptoms:
- High memory usage due to connflow allocations
 - conn_remove_cf_not_found stat is non-zero

Conditions:
CMP with multiple TMMs. CMP peer connection is removed before it has been established.

Impact:
Low memory may lead to allocation failures that may lead to tmm core

---

606807-1 : Discovery appliance may use sensor number instead of name "LCD health" reporting communication error

Component: TMOS

Symptoms:
If the LCD is not communicating with BIG-IP when the chassis manager daemon starts occasionally LCD errors will be displayed using the sensor number rather than the name "LCD"

Conditions:
chmand restart and LCD unable to commuicate

Impact:
cosmetic

---

606575-6 : Request-oriented OneConnect load balancing ends when the server returns an error status code.

Component: Local Traffic Manager

Symptoms:
Request-oriented OneConnect load balancing ends when the server returns an error status code.

Conditions:
OneConnect is enabled and the server responds with a HTTP error status code.

Impact:
The client remains connected to the server, and no further load-balancing decisions are made.

Workaround:
It may be possible to detect the HTTP status code in the response, and manually detach the client-side.

To do so, use an iRule similar to the following:

when HTTP_RESPONSE {
    if { [HTTP::status] == 200 } { return }
    if { [HTTP::status] == 401 } {
        set auth_header [string tolower [HTTP::header values "WWW-Authenticate"]]
        if { $auth_header contains "negotiate" || $auth_header contains "ntlm" } {
            # Connection-oriented auth. System should already be doing the right thing
            unset auth_header
            return
        }

        unset auth_header
    }

    catch { ONECONNECT::detach enable }
}.

Note: These workarounds should not be used when the backend server is using connection-oriented HTTP authentication (e.g., NTLM or Negotiate authentication).

---

606573-1 : FTP traffic does not work through SNAT when configured without Virtual Server★

Component: Local Traffic Manager

Symptoms:
After upgrading to 12.1.0 or 12.1.1, FTP traffic no longer works correctly with SNAT, when SNAT is configured without a virtual server.

Conditions:
The BIG-IP system configured to allow FTP traffic through, and SNAT is configured without a virtual server.

Impact:
The BIG-IP system does not SNAT port 21 traffic.

Workaround:
None.

---

606565-1 : TMM may crash when /sys db tm.simultaneousopen is set to reset or drop_connection

Component: Local Traffic Manager

Symptoms:
When the /sys db tm.simultaneousopen variable is set to 'reset' or 'drop_connection', TMM may crash during a TCP simultaneous 4 way handshake.

Conditions:
1. The /sys db tm.simultaneousopen variable is set to 'reset' or 'drop_connection'.
2. A TCP 4 way handshake (simultaneous open) occurs as described in RFC 793.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
The crash can be avoided, while still mitigating TCP 4 way handshakes, by setting the /sys db tm.simultaneousopen variable to 'drop_pkt'.

---

606518-1 : iControl REST with 3rd party auth does not function as expected with '@' / email addresses as username.

Component: Device Management

Symptoms:
Cannot use username containing an 'at' ( @ ) character, or specify the email address when requesting authentication token using iControl REST when 3rd party authentication provider being used.

Conditions:
Set-up the BIG-IP system to use 3rd party RADIUS or LDAP authentication and configure a username containing an 'at' ( @ ) character, or specify the email address.

Impact:
Cannot authenticate and get authentication token using iControl REST.

Workaround:
Do not use username with special characters, such as 'at' ( @ ), period ( . ), and so on).

---

606509-2 : Incorrect process priority in vCMP guest results in low priority of the guest control-plane, which might cause high availability failover★

Component: TMOS

Symptoms:
Incorrect process priority in vCMP guest results in low priority of the guest control-plane, which might cause high availability failover.

Conditions:
This occurs when the following conditions are met:
* vCMP provisioned.
* vCMP hypervisor (host) running 12.1.0
* vCMP guest with 2 or more cores deployed and running 11.5.0 or greater.
* vCMP guest has HT-Split enabled (tmsh list sys db scheduler.splitplanes.ltm).

Impact:
vCMP guests may experience control-plane issues (such as failures to send or receive network failover traffic in an HA-pair, causing a failover).

Workaround:
If you absolutely must upgrade your vCMP host to 12.1.0, an engineering hotfix is available in the 12.1.0 container on the downloads site. It is named Hotfix-BIGIP-12.1.0.1.58.1447-HF1-EHF58 and can be downloaded at https://downloads.f5.com/esd/ecc.sv?sw=BIG-IP&pro=big-ip_v12.x&ver=12.1.0&container=Hotfix-BIGIP-12.1.0.1.58.1447-HF1-EHF58

---

606330-4 : The BIG-IP system does not accept BGP connection requests when using peer-groups and no default address family.

Component: TMOS

Symptoms:
The BIG-IP system does not accept incoming or initiate outgoing BGP connections when using peer-groups and no default address family.

Conditions:
BGP configured with 'no bgp default ipv4-unicast' and neighbors configured using a peer group that's explicitly activated for IPv4.

Impact:
The BGP connection to any neighbor in the peer group will not come up until 'clear ip bgp' is run on the neighbor or tmrouted is restarted.

Workaround:
Clear the BGP neighbor after changing the configuration.

---

605983-1 : tmrouted may crash when being restarted in debug mode

Component: Local Traffic Manager

Symptoms:
tmrouted may restart after it being manually restarted with debug level equal or higher than 2.

Conditions:
tmrouted is manually restarted with debug level equal or higher than 2.
Multi route-domain setup with independent routing processes enabled on several route-domains.

Impact:
tmrouted may restart additional times which can add delay to getting back to service after manually restarting tmrouted.
Any restart of tmrouted already causes loss of dynamic routing sessions.

Workaround:
Do not use equal or higher than 2 debug level for tmrouted. This should be carried out only under recommendation from F5 Support.

---

605894-1 : Remote authentication for BIG-IP users can fail

Component: TMOS

Symptoms:
While trying to log into the command line of BIG-IP as a remotely authenticated user, login will intermittently fail. You may see the following in /var/log/secure: "err httpd[19596]: pam_ldap: ldap_simple_bind Can't contact LDAP server" but the LDAP server is up and is accessible by the BIG-IP

Conditions:
Remote authentication configured, users configured to use remote authentication, and ssl-check-peer is enabled.

Impact:
The remote authentication service will fail to initiate a connection to the LDAP server with the ssl-check-peer setting enabled, even if the ssl-ca-cert-file is valid. It will terminate the connection and remote authentication will fail.

Workaround:
Disabling ssl-check-peer can work around this issue.

---

605865-4 : Debug TMM produces core on certain ICMP PMTUD packets

Component: Local Traffic Manager

Symptoms:
The debug TMM will produce a core on the assert "cwnd or ssthresh too low" when receiving an ICMP PMTUD packet with an MTU larger than the current MTU. This does not affect the default TMM.

Conditions:
While using the debug TMM, an ICMP PMTUD packet is received with an MTU larger than the current MTU.

Impact:
Debug TMM crashes on assert "cwnd or ssthresh too low." Traffic disrupted while tmm restarts.

Workaround:
Block incoming ICMP PMTUD packets. Note that this will cause Path MTU Discovery to fail, and IP packets sent by the BIG-IP system with the Don't Fragment (DF) bit set may be dropped silently if the MTUs of the devices on the path are configured incorrectly.

---

605800-3 : Web GUI submits changes to multiple pool members as separate transactions

Component: TMOS

Symptoms:
You notice an unusually high amount of sync traffic when changing many pool members at once. In extreme cases, mcpd may run out of memory and crash.

Conditions:
When looking at a list of pool members, it is possible to choose to view many pool members at once, and you can then select them all and enable or disable them with one press of a button. Rather than sending all of the operations in a single transaction, the GUI code updates each pool member one by one. When there are a lot of pool members and auto-sync is being used, this can cause race conditions that can generate a large number of transactions going from the local machine to the remote machine.

Impact:
This can cause an unusually high amount of sync traffic to occur between devices in the sync group with auto-sync enabled. In extreme cases this can cause mcpd to crash and traffic is disrupted while mcpd restarts.

Workaround:
If you frequently need to enable/disable many pool members at once, there are a couple of options:
1. You can switch to manual sync during this operation.
2. You can minimize the number of pool members that are altered at once. The issue was observed when changing over 300 pool members at once.

---

605682-2 : With forward proxy enabled, sometimes the client connection will not complete.

Component: Local Traffic Manager

Symptoms:
If forward proxy is enabled, and a required forged certificate is not in the cache, the connection might not complete.

Conditions:
Forward proxy is enabled, and a required forged certificate is not in the cache.

Impact:
Degraded service due to connections not completing.

Workaround:
None.

---

605476-3 : istatsd can core when reading corrupt stats files.

Component: TMOS

Symptoms:
The istatsd process may consume excessive CPU resources.

As a result of this issue, you may encounter one or more of the following symptoms:

-- The system performance degrades and the system eventually stops responding or reboots.
-- In the /var/log/ltm file, you observe multiple messages that appear similar to the following example: emerg logger: Re-starting istatsd.

-- The istatsd process produces a core file in the /shared/core directory.

Conditions:
This issue occurs when the following condition is met:

The istatsd process attempts to read a corrupt iStats file.
Under these conditions, the istatsd process may continually restart and produce a core file.

Impact:
Over time, the system performance may degrade and the system may eventually stop responding or reboot due to resource exhaustion.

Workaround:
To work around this issue, you can remove the iStats files and restart the istatsd processes. To do so, perform the following procedure:

Impact of workaround: This workaround will cause all statistics in the iStats files to reset.

Log in to the BIG-IP command line.
To stop the istatsd and related processes, type the following command:
tmsh stop sys service istatsd avrd merged

To delete the iStats files, type the following command:
find /var/tmstat2/ -depth -type f -delete

To start the istatsd and related processes, type the following command:

tmsh start sys service istatsd avrd merged

---

605427-1 : TMM may crash when adding and removing virtual servers with security log profiles

Component: Advanced Firewall Manager

Symptoms:
In certain circumstances when virtual servers are configured with security log profiles TMM may crash.

Conditions:
Creation, modification and deletion of many virtual servers with security log profiles attached.

Impact:
TMM may crash with the following log in /var/log/tmm:
<13> Apr 18 13:23:04 <hostname> notice panic: ../base/fw_log_profile.c:3368: Assertion "fw_log_profile_protocol_sip_dos ref non-zero" failed.

Traffic disrupted while tmm restarts.

---

605260-1 : [GUI] Changes can not be made to GTM listener in partition with default route domain <> 0

Component: Global Traffic Manager (DNS)

Symptoms:
When a listener is created in a partition that has a default route domain set, you cannot make changes to the listener in the GUI via DNS -> Delivery -> Listeners. It gives 'Instance not found' error when you try to save the change. Also, a listener in the /Common partition cannot even be viewed when a partition that has a default route domain other than 0 is selected.

Conditions:
This occurs when using partitions that have default-route-domain set to something other than 0.

Impact:
You will be unable to make changes to the listener.

Workaround:
Use TMSH or through LTM GUI: Local Traffic :: Virtual Servers.

---

605175 : Backslashes in monitor send and receive strings

Component: Local Traffic Manager

Symptoms:
After creating a monitor using the GUI containing a recv parameter with a backslash such as '\* OK', loading the configuration generates a validation error:

01070753:3: Monitor /Common/test recv parameter contains an invalid regular expression (Invalid preceding regular expression).
Unexpected Error: Loading configuration process failed.

Attempting to configure the same monitor via tmsh throws the validation error before creating the monitor, but the GUI allows the single backslash. Two backslashes are required in this case.

Conditions:
Using the GUI to configure a monitor, whose receive string needs to look for a backslash, and only a single backslash is entered in the GUI.

Impact:
Configuration fails to load after it is successfully created via the GUI. The GUI accepts this when it should throw a validation error: two backslashes are required.

Workaround:
When configuring the monitor via the GUI, use two backslashes instead of one.

---

605018-2 : Citrix StoreFront integration mode with pass through authentication fails for browser access

Component: Access Policy Manager

Symptoms:
Citrix StoreFront integration mode with pass through authentication fails for browser access. After providing the credentials, browser access continuously asks for 'Can not complete the request', press 'OK'.

Conditions:
This occurs when the following conditions are met:
- APM is configured in integration mode with StoreFront.
- External access virtual server IP is used in Citrix gateway configuration 'Subnet IP address' column.
- (Request Header Insert) :: [X-Citrix-Via-Vip:10.10.10.10], 10.10.10.10 is the virtual server IP address. Request Header Insert is configured on the HTTP profile of the same virtual server.

Impact:
No browser access to StoreFront.

Workaround:
StoreFront combines multiple headers of the same name and cannot use the resulting value. You can workaround this issue by stripping multiple headers of type x-citrix-via-vip.
Make 10.10.10.10 the corresponding External access virtual IP address.

when HTTP_REQUEST {
   if { [HTTP::header count "X-Citrix-Via-Vip"] >= 2 } {
        HTTP::header remove "X-Citrix-Via-Vip"
        HTTP::header insert "X-Citrix-Via-Vip" "10.10.10.10"
    }
}

---

604838-1 : TCP Analytics reports incorrectly reports entities as "Aggregated"

Component: Local Traffic Manager

Symptoms:
Although the user has configured TCP Analytics to store statistics for a certain entity, it reports data for that entity in a single "Aggregated" row.

Conditions:
ALL of these conditions must be true:

The TCP Analytics profile is attached to a virtual with both clientside or serverside collection turned off in the profile.

TCP profile has mptcp, rate-pace, tail-loss-probe, fast-open, AND enhanced-loss-recovery all disabled. Also, Nagle, send-buffer, receive-window, proxy-buffer are not in AUTO mode. Finally, rexmt-thresh is 3 and the congestion control algorithm is not delay-based (NewReno, HighSpeed, Cubic). Regrettably, this matches the default TCP profile.

An iRule enables TCP-Analytics when disabled by default in the tcp-analytics profile.

Impact:
Defect eliminates nearly all data granularity for TCP Analytics.

Workaround:
Change the TCP profile on the virtual to violate any of the conditions listed above. The easiest is probably to enable rate pace or mptcp. For all affected versions, this will result in a noticeable CPU performance penalty.

---

604767-2 : Importing SAML IdP's metadata on BIG-IP as SP may result in not complete configuration of IdP connector object.

Component: Access Policy Manager

Symptoms:
When importing SAML IdP's metadata, certificate object might not be assigned as 'idp-certificate' value of saml-idp-connector object.

Conditions:
BIG-IP is used as SAML SP.

Impact:
Described behavior will result in misconfiguration. SAML WebSSO will subsequently fail.

Workaround:
Manually assign imported certificate as a 'idp-certificate' value of saml-idp-connector object.

---

604727-1 : Upgrade from 10.2.4 to 12.1.0 fails when SNMP trap exists in config from 10.2.4.★

Component: TMOS

Symptoms:
Upgrade from 10.2.4 to 12.1.0 fails when SNMP trap exists in config from 10.2.4. After upgrade from 10.2.4 to 12.1.0, you are unable to use the GUI. The system posts the following message: The configuration has not yet loaded. CLI login works, and /var/log/ltm shows that the following message was recorded during the device bootup phase:

emerg load_config_files: "/usr/libexec/bigpipe base daol" - failed. -- BIGpipe parsing error (/config/bigpipe/bigip_sys.conf Line 113): 012e0010:3: The requested value ({ i192_168_0_20_1) is invalid (<trapsess list> ` none) [add ` delete]) for 'trapsess' in 'snmpd'.

Conditions:
Upgrade from 10.2.4 to 12.1.0 fails when SNMP trap exists in config from 10.2.4. The root cause is that the host parameter in the trap is encapsulated in quotation marks.

Impact:
The upgrade completes, but the configuration does not load when the system restarts.

Workaround:
In bigip_sys.conf, remove the quotation marks from around the host parameter for any snmp traps.

---

604612-1 : Modified asm cookie violation happens after upgrade to 12.1★

Component: Application Security Manager

Symptoms:
False positive modified ASM cookie violation. Perhaps other false positive cookie related violations.

Conditions:
An upgrade happened to 12.1. Existing end users are connected with their browsers to the site.

Impact:
False positive violations. A blocking page will be shown in case the modified asm cookie is set to blocking (which is the default for this violation in case the policy is in blocking state).

Workaround:
One possibility is to put the modified asm cookie violation in transparent after an upgrade for a while.
Another option is to use the erase cookie blocking page as the default blocking page for some time after the upgrade.
Another possibility is to use an iRule like this one:
when ASM_REQUEST_DONE {
    if {[ASM::violation names] contains "VIOLATION_MOD_ASM_COOKIE"} {
        log local0. "remove TS01d2cce8 cookie"
        HTTP::respond 302 Location "http://sub.some_domain.com/index.html?[ASM::support_id]" "Set-Cookie" "TS01d2cce8=deleteOldTSCookie;expires=Thu, 01 Jan 1970 00:00:01 GMT"
    }

---

604133-4 : Ramcache may leave the HTTP Cookie Cache in an inconsistent state

Component: Local Traffic Manager

Symptoms:
Ramcache may re-use internal HTTP data without clearing the cookie cache. If other filters later inspect that cache they may read corrupted cookie information, or cause a TMM crash.

Conditions:
Ramcache + another filter or iRule inspecting/modifying cookies in a Ramcache response.

Impact:
The modifications of the corrupt cookie cache may cause HTTP headers to be malformed. Inspecting the cookie cache may cause the TMM to crash with an assert. Traffic disrupted while tmm restarts.

---

604011-1 : Sync fails when iRule or policy is in use★

Component: TMOS

Symptoms:
After upgrading and attempting to sync to devices in a sync group, sync fails with the following error:

Load failed from 119.big.ip 01070621:3: Rule priorities for virtual server (vs1) must be unique.

Load failed from /Common/big152 01070712:3: Caught configuration exception (0), Values (/Common/vs1) specified for virtual server policy (/Common/vs1 /Common/asm_auto_l7_policy__vs1): foreign key index (vs_FK) do not point at an item that exists in the database.

Conditions:
- A virtual address exists in the traffic-group-local-only group, meaning that it is not synced
- A CPM policy or iRule is applied to that virtual server
- Conduct a sync

This was seen on an upgrade from 12.0.0 to 12.1.0 HF1 or beyond, but could be triggered on an upgrade from any version from 11.4.0 and beyond to 12.1.0 HF1.

Impact:
Config sync fails.

Workaround:
Disassociate the iRule or policy from the virtual server, then attempt to sync.

---

603979-2 : Data transfer from the BIG-IP system self IP might be slow

Component: Local Traffic Manager

Symptoms:
When a large amount of data needs to be transferred using a selp IP address, the BIG-IP system might send out fragmented IP packets with both the DF and MF bits set. Setting both bits is RFC compliant and valid, however some routers drop such packets. This might result in retransmissions and low throughput

Conditions:
This occurs when a self IP address processes large data transfers, and the router between the two endpoints does not process the IP fragments that have both the DF and MF bits set.

Impact:
Data transfer from the BIG-IP system's self IP might be slow.

Workaround:
Run the following command: ethtool -K tmm tso off.

Note: To persist the effect of this command across reboots, use the solution specified in SOL14397: Running a command or custom script based on a syslog message, available here: https://support.f5.com/kb/en-us/solutions/public/14000/300/sol14397.html

---

603945-2 : BD config update should be considered as config addition in case of update failure

Component: Application Security Manager

Symptoms:
A configuration update fails when the system cannot find the item to update. Configuration failures are shown in bd.log.

Conditions:
The condition that leads to this scenario is not clear and is still under investigation.

Impact:
The update fails and the entity is not added.

Workaround:
Delete the faulty entity and re-add, and then issue the following command: restart asm.

This fixes the issue in the cases in which it is a single entity.

---

603772-1 : Floating tunnels with names more than 15 characters may cause issues during config-sync.

Component: TMOS

Symptoms:
Floating tunnels with names more than 15 characters may cause issues in config-sync, because such a long name is truncated when creating a corresponding Linux tunnel interface.

Conditions:
The BIG-IP system consists of both floating and non-floating tunnels and their names are longer than 15 characters.

Impact:
When the config-sync happens, the following error may occur:

Caught configuration exception (0), Cannot create tunnel 'g123456789abc~1' in rd0 - ioctl failed: File exists.

Workaround:
Some workarounds are available:

- Make sure that tunnel names are less than 16 characters; or

- Make sure that the names of floating and non-floating tunnels do not share a common prefix in the first 15 characters; or

- Make sure that the BIG-IP system does not have a mixture of floating and non-floating tunnels.

---

603700 : tmm core on multiple SSL::disable calls

Component: Local Traffic Manager

Symptoms:
tmm can crash if SSL::disable is called repeatedly in an iRule event.

Conditions:
Invoking SSL::disable multiple times in the same iRule event

Impact:
Traffic disrupted while tmm restarts.

---

603605-1 : Cannot install DoS Hybrid Defender on standby device in HA pair if it's already installed on active

Component: iApp Technology

Symptoms:
After installation, the rpm on active device applications will be replicated to the standby. If standby does not have DHD installed, the installation page is never shown.

Conditions:
HA setup for DoS Hybrid Defender, with DHD only installed on Active.

Impact:
HA cannot be supported for DHD application on 12.1.0 and 12.1.1.

Workaround:
None.

---

603598-3 : big3d memory under extreme load conditions

Component: Global Traffic Manager

Symptoms:
big3d memory consumption can grow if big3d is unable to process monitor requests in a timely fashion.

This can be seen by monitoring the memory consumption of big3d using standard OS tools such as top.

Conditions:
big3d maintains a queue for monitor requests.
Incoming monitor requests are first placed in the Pending queue.
Requests are moved from the Pending queue to the Active queue, if there is room in the Active queue.

When the Pending queue is full, there is no room for the Monitor Request. big3d attempts to clean up the Monitor request, but fails to completely free the memory.
This might result in a significant memory leak.

For this to happen, the Active queue must be full as well as the Pending queue.

One possible condition that might cause this is if multiple Monitors time out. This results in Monitors having long life times, which keeps the Active queue full.

Thus the Pending queue might become full and the memory leak can occur.

In BIGIP 11.1.0 versions of big3d,
the Active queue has 256 slots and
the Pending queue has 4096 slots.

In BIGIP 11.1.0-hf3, the queue sizes were expanded to
2048 for the Active queue and 16384 for the Pending queue.

Since the queues were smaller n versions prior to
11.1.0-hf3, this leaks is more likely to manifest itself.

In later versions, the leak is still possible, but is less likely to occur.

Impact:
big3d memory consumption grows unbounded. This might result in a big3d restart or memory starvation of other processes.

Workaround:
This can be partially mitigated by ensuring that monitors
settings are reasonable and that big3d is not overloaded.

This will minimize the chances that the Pending queue
does not become full.

There is no mechanism to resize the queues.

---

603550-1 : Virtual servers that use both FastL4 and HTTP profiles at same time will have incorrect syn cache stats.

Component: Local Traffic Manager

Symptoms:
Virtual server remains in syncookie mode even after the syn flood stops.

As a result of this issue, you might see the following symptoms:
-- Virtual servers that use both FastL4 and HTTP profiles might show incorrect 'Current SYN Cache' stats.

-- Virtual stats 'Current SYN Cache' does not decrease.

Conditions:
This issue occurs when the configuration contains a virtual server that uses FastL4 as a filter (for example, has both the FastL4 profile and layer 7 profile (HTTP) syn flood to the virtual server).

Impact:
The virtual server stays stuck in syncookie mode after the synflood is over, and does not recover.

Workaround:
None.

---

603149-2 : Large ike-phase2-lifetime-kilobytes values in racoon ipsec-policy

Component: TMOS

Symptoms:
Setting max data limit transmitted (in kilobytes) to a very large limit results in a smaller limit, causing SAs to expire too quickly. Values for ike-phase2-lifetime-kilobytes inside ipsec-policy can reach 2^32-1 kilobytes, but will be processed incorrectly, as if the value were smaller.

Conditions:
When lifetime-kilobytes is large enough, it can act as though it were smaller.

Impact:
Negotiated SAs expire too quickly when size lifetime is calculated too small.

Workaround:
Before the fix, decrease lifetime-kilobytes until properly stable.

---

603032-1 : clientssl profiles with sni-default enabled may leak X509 objects

Component: Local Traffic Manager

Symptoms:
SSL memory consumption grows when virtuals with sni-default-enabled clientssl profiles are modified.

Conditions:
clientssl profile with sni-default enabled combined with configuration manipulations of virtuals with such profiles.

Impact:
The amount of leakage will depending on the number of virtuals with sni-default-enabled clientssl profiles and frequency of configuration manipulations. For large configurations, the leakage can be very noticeable over time.

Workaround:
No workaround short of not using sni-default.

---

603019-3 : Inserted SIP VIA branch parameter not unique between INVITE and ACK

Component: Service Provider

Symptoms:
The branch parameter of the inserted VIA header is sometimes the same between an INVITE and ACK message.

Conditions:
If the CSEQ number of a SIP message is the same, the inserted VIA header will contain the same branch parameter.

Impact:
SIP proxy servers which perform strict message validations may reject the call.

---

602854-2 : Missing ASM control option from LTM policy rule screen in the Configuration utility

Component: TMOS

Symptoms:
In the Configuration utility, when creating or editing a LTM policy, the ASM control option may be missing from the rule screen.

Conditions:
Whether the ASM control option is present or missing purely depends on the license installed on the system.

The system incorrectly reports certain licensed modules to the Configuration utility, which fails to parse them and ultimately to display the ASM control option. If you wish to determine whether you are affected by this issue, SSH to the advanced shell of the BIG-IP system and run this command:

# grep -E '^active module : [^|]*\|[^|]*$' /config/bigip.license

If any output is returned, then you are affected by this issue.

Impact:
ASM cannot be enabled in LTM policies using the Configuration utility.

Workaround:
Use the TMSH utility to enable ASM in LTM policies.

---

602653-1 : TMM may crash after updating bot-signatures

Component: Local Traffic Manager

Symptoms:
TMM may crash after DOSL7 bot signatures config has changed.

Conditions:
This is likely to happen after DOSL7 bot signatures config has changed.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
Try adding/removing some signatures, this should avoid the crash.

---

602566-1 : sod daemon may crash during start-up

Component: TMOS

Symptoms:
sod daemon produces core file during start-up

Conditions:
sod encounters an error during start-up and attempts to recover.

Impact:
sod restarts

---

602502-2 : Unable to view the SSL Cert list from the GUI

Component: TMOS

Symptoms:
When you try to see information about any SSL certificates in the GUI, it displays an error: An error has occurred while trying to process your request.

Conditions:
Can not view any SSL certificates in the GUI if at least one certificate has a double extension(like test.crt.crt) in its name.

Impact:
Unable to view the any SSL Cert from the GUI

Workaround:
Delete such certificate through TMSH and reimport without .crt extension in the certificate name.

delete sys file ssl-cert test.crt.crt

---

602358-5 : Some sites need the SSL/TLS ClientHello version sent after receiving the HelloRequest to match the first ClientHello Version

Component: Local Traffic Manager

Symptoms:
Some sites need the SSL/TLS version (both in the Record layer and Handshake Protocol) in the 2nd ClientHello after receiving the HelloRequest to be exactly the same as the SSL/TLS version of the 1st ClientHello; that is:
************************************************************
1st ClientHello record layer version == 2nd ClientHello record layer version;
1st ClientHello Handshake Protocol version == 2nd ClientHello Handshake Protocol version.
************************************************************

The BIG-IP system default behavior is to set the SSL/TLS ClientHello version to be the negotiated version in only the first round ServerHello.

Conditions:
This occurs when using virtual servers configured with one or more SSL profiles

Impact:
The SSL renegotiation after receiving the HelloRequest will fail.

Workaround:
Manually setting the ciphers in the ServerSSL to TLS1.0 can solve the issue.

---

602300-1 : Zone Runner entries cannot be modified when sys DNS starts with IPv6 address

Component: Global Traffic Manager

Symptoms:
Zone Runner entries cannot be modified if an IPv6 DNS name server is listed first. This can happen when a user runs the tmsh command
tmsh modify sys dns name-servers add { <IPv6> }

as the first dns name-server.
This will show in the /etc/resolv.conf file (an example)
nameserver 2001::1
nameserver 192.168.100.1

Conditions:
When an IPv6 nameserver is the first server defined.

Impact:
ZoneRunner records cannot be modified.

Workaround:
Do not use DNS server with IPv6 address or add IPv4 server at top of the list.

---

602221-2 : Wrong parsing of redirect Domain

Component: Application Security Manager

Symptoms:
ASM learns wrong domain names

Conditions:
no '/' after domain name in the redirect domain

Impact:
wrong learning suggestion can lead to wrong policy

Workaround:
N/A

---

602193-4 : iControl REST call to get certificate fails if

Component: TMOS

Symptoms:
While using the iControl REST API, a call to /mgmt/tm/sys/crypto/cert results in a 400 or 500 error. The call to /mgmt/tm/sys/crypto/key works.

Conditions:
This can occur if any of the certificates contain non utf-8 characters.

Impact:
iControl REST API call will fail.

Workaround:
If possible, generate the certificate to only contain utf-8 characters.

---

602136-5 : iRule drop command causes tmm segfault or still sends 3-way handshake to the server.

Component: Local Traffic Manager

Symptoms:
If you have a client-side iRule that drops a client-side connection, either tmm will segfault or the BIG-IP system still sends the SYN to the server, and then a RST. The reset cause will be 'TCP 3WHS rejected'.

Conditions:
Client-side iRule that drops a connection.

Impact:
TMM segfaults or the BIG-IP system still sends a SYN to the server.

Workaround:
None.

---

602040-3 : Truncated support ID for HTTP protocol security logging profile

Component: Local Traffic Manager

Symptoms:
The HTTP Protocol Security logging profile yields to incomplete support ID published in the local storage.

Conditions:
Configuration: LTM with Protocol Security Module provisioned, LTM virtual server with HTTP Protocol Security and local-storage logging profile attached. The log-db entries created by the HTTP Protocol Security logging profile have a truncated support ID.

Impact:
The support ID presented to the user does not match the one in the logs because the log entry is truncated (missing a few digits)

Workaround:
There is no workaround

---

601989-2 : Remote LDAP system authenticated username is case sensitive★

Component: TMOS

Symptoms:
Unable to login via ssh, with cause being reported as "user account has expired". Wrong role being assigned for remote-user.

Conditions:
The character-case for the username returned from LDAP must match the login username and the configured account name. This can be exposed on an upgrade from 11.6.0 to 12.1.0 or later.

Impact:
Unable to login via ssh with remote-user or remote-user being assigned incorrect role when multiple accounts exists with the same name and mixed case.

Workaround:
Avoid configure same account username with different case and the authenticated user account in TMOS and used to login should exactly match the user account name returned from LDAP.

---

601905-2 : POST requests may not be forwarded to backend server when EAM plugin is enabled on the virtual server

Component: Access Policy Manager

Symptoms:
POST requests appear to hang when they are sent through a virtual server with EAM plugin enabled.

Conditions:
Most likely, the POST request contains large post data.

Impact:
The POST request will fail.

Workaround:
The following iRule will workaround the issue:

 when HTTP_REQUEST {

  if {[HTTP::method] eq "POST"}{
    # Trigger collection for up to $max_collect of data
    set max_collect 1000000
    if {[HTTP::header "Content-Length"] ne "" && [HTTP::header "Content-Length"] <= $max_collect}{
      set content_length [HTTP::header "Content-Length"]
    } else {
        set content_length $max_collect
    }
    # Check if $content_length is not set to 0
    if { $content_length > 0} {
      HTTP::collect $content_length
    }
  }

---

601893-2 : TMM crash in bwc_ctb_instance_recharge because of pkts_avg_size is zero.

Component: TMOS

Symptoms:
Tmm cores. There might be messages similar to the following notice in /var/log/ltm just before the crash: notice BWC: instance already exist. This is an extremely rarely occurring issue.

Conditions:
This extremely rare issue occurs when the following conditions are met:
Dynamic BWC use with dynamic change in rate for each instance.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
Do not use dynamic modification of rates for dynamic policies.

---

601709-2 : I2C error recovery for BIGIP 4340N/4300 blades

Component: TMOS

Symptoms:
The I2C internal bus for the front switch may not work. The fix recovers from the problem when it happens.

Conditions:
This rarely happens.

Impact:
Corrupted serial number information from SFPs, and fiber SFPs may not come up.

Workaround:
bigstart restart bcm56xxd

---

601536-1 : Analytics load error stops load of configuration★

Component: Application Visibility and Reporting

Symptoms:
After upgrading, the configuration fails to load and you see this log message: 01071ac1:3: Non-Comulative metric (max-request-throughput) cannot be calculated per single entity (pool-member).
Unexpected Error: Validating configuration process failed.

Conditions:
This can occur any time the analytics configuration was valid in a previous release and is no longer valid. For example, if you have an analytics profile set at pool-member granularity, it will load in 12.0.0 but will fail to load on 12.1.0 as granularity must be set at the virtual-server level, not the pool level.

Impact:
Configuration fails to load, will not pass traffic.

Workaround:
Fixing the configuration manually is the only option when this occurs. In the pool-member granularity example, you can check all your analytics profiles for granularity pool-member and set them to granularity virtual-server.

---

601527-4 : mcpd memory leak and core

Component: TMOS

Symptoms:
Mcpd can leak memory curing config update or config sync.

Conditions:
All of the conditions that trigger this are not known but it seems to occur during full configuration sync and is most severe on the config sync peers. It was triggered making a single change on the primary by configuring a monitor rule, e.g., tmsh create ltm pool p members { 1.2.3.4:80 } monitor http

Impact:
Loss of memory over time, which may result in out-of-memory and mcpd core.

---

601502-3 : Excessive OCSP traffic

Component: TMOS

Symptoms:
With OCSP configured on a virtual server, you see excessive OCSP requests going to the OCSP server.

Conditions:
Virtual server configured with an OCSP profile

Impact:
OCSP responses are not cached properly and excessive requests are sent to the server.

Workaround:
None.

---

601496-3 : iRules and OCSP Stapling

Component: Local Traffic Manager

Symptoms:
Using certain iRules on virtual servers with OCSP Stapling enabled on the Client SSL profile might cause OCSP requests to be reissued, resulting in a memory leak.

You may notice warning messages similar to the following in /var/log/ltm:
warning tmm[11300]: 011e0003:4: Aggressive mode sweeper: /Common/default-eviction-policy (0) (global memory) 115 Connections killed.

Conditions:
This occurs when the following conditions are met:
-- Virtual server with OCSP Stabling enabled.
-- iRule attached to the virtual server that uses SSL::renegotiate.

Impact:
TMM memory used increases gradually, eventually the aggressive mode sweeper is activated.

Workaround:
None.

---

601414-1 : Combined use of session and table irule commands can result in intermittent session lookup failures

Component: TMOS

Symptoms:
[session lookup] commands do not return the expected result.

Conditions:
An iRule which combines use of [table] and [session lookup] commands.

Impact:
Intermittent session functionality.

Workaround:
If possible, use table commands in lieu of session commands.

---

601255-1 : RTSP response to SETUP request has incorrect client_port attribute

Component: Service Provider

Symptoms:
- Clientside data is sent to UDP port 0
- RTSP response to SETUP request contains incorrect 'client_port' attribute (0)

Conditions:
- Virtual with RTSP profile.
- 200/OK is received from server in response to the initial SETUP request
- SETUP request was the initial message received on a new connection

Impact:
Unicast media may forwarded to incorrect UDP port (0).

---

601180-2 : Link Controller base license does not allow DNS namespace iRule commands.★

Component: Global Traffic Manager

Symptoms:
The Link Controller base license was improperly preventing DNS namespace iRule commands.

Conditions:
A Link Controller license without an add-on that allowed Layer 7 iRule commands.

Impact:
An administrator would not be able add DNS namespace commands to an iRule or upgrade from a pre-11.5 configuration where the commands were working to 11.5.4 through 12.1.1.

Workaround:
To address the inability to upgrade, removal of DNS namespace commands from the configuration prior to upgrade will allow the upgrade to proceed. The commands will then be able to be re-added after a fixed version is installed.

---

601178-1 : HTTP cookie persistence 'preferred' encryption

Component: Local Traffic Manager

Symptoms:
When encryption is 'preferred' in the http cookie persistence profile, when the client presents a plain-text route domain formatted cookie the BIG-IP will ignore the cookie and re-load balance the connection.

Conditions:
This occurs when route-domain-compatible cookies are sent in plaintext.

Impact:
Cookie does not get accepted by the persistence profile and flow does not persist.

---

601076 : Fix watchdog event for accelerated compression request overflow

Component: TMOS

Symptoms:
Accelerated compression requests that exceed 128 in-flight requests can cause a watchdog event.

Conditions:
Very rapid queuing of concurrent accelerated compression requests.

Impact:
TMM generates an HA failover driven by the accelerated compression watchdog timer.

Workaround:
Disable accelerated compression by disabling hardware accelerated compression with:

  % tmsh modify sys db compression.strategy value softwareonly

---

601056 : TCP-Analytics, error message not using rate-limit mechanism can halt TMM

Component: Application Visibility and Reporting

Symptoms:
An error message is displayed when TCP-Analytics fails to save new data. This error message should be rate-limited, like all TMM error messages, so that if taken place very frequently, it will be displayed only once in a while and not for every error event.
Since the error message is not rate-limited, hitting this error many times can lead to TMM halt.

This is also part of bug: 601035, which is the root-cause for hitting the error case.

Conditions:
TCP-Analytics is assigned to virtual server, and hitting bug: 601035.

Impact:
TMM can halt

Workaround:
Remove TCP-Analytics from virtual servers.

---

601035 : TCP-Analytics can fail to collect all the activity

Component: Application Visibility and Reporting

Symptoms:
When the traffic reaching BIG-IP comes from very large number of different client-ips and subnets, the TCP-Analytics table can get full which leads to ignoring the activity that follows, until next snapshot of data.

Conditions:
TCP-Analytics profile is attached to a virtual server, incoming traffic from large amounts of client-ips and subnets (exact number to cause full table depends on machine type and provisioned modules).

Impact:
TCP Analytics is showing only some of the activity, not all of it.
There is also another impact described in bug: 601056,which is frequent errors in log.

Workaround:
Disable TCP-Analytics.

---

600944-1 : tmsh does not reset route domain to 0 after cd /Common and loading bash

Component: TMOS

Symptoms:
In tmsh, you are in a partition with a custom route domain. When you run 'cd /Common' and run bash then run 'ip route', the routing table from the partition is displayed, not /Common

Conditions:
Attempting to see the route table from the /Common partition after leaving another parition

Impact:
You cannot get /Common's route table back without quitting and restarting tmsh.

Workaround:
Quit tmsh and restart.

---

600894-1 : In certain situations, the MCPD process can leak memory

Component: TMOS

Symptoms:
In certain situations, the MCPD process can leak memory. This has been observed, for example, while updating large external data-group file objects. Each time an external data-group file is updated, MCPD's memory utilization grows a little bit. Once enough iterations have occurred, the system may no longer be able to update the external data-group file, but instead return the following error message:

err mcpd[xxxx]: 01070711:3: Caught runtime exception, std::bad_alloc.

Conditions:
So far, this issue has only been observed while updating a large external data-group file object.

Impact:
The system may no longer be able to update the external data-group file object. It is also possible for MCPD to crash, or be killed by the Linux OOM killer, as a result of the memory leak.

---

600872-1 : Access session inactivity expiration time not updated when accessed with http/2 enabled browsers on Windows platforms.

Component: Access Policy Manager

Symptoms:
Access session inactivity expiration time not updated when accessed with http/2 enabled browsers on Windows platforms.

Conditions:
- An HTTP/2 capable browser is on use on a Windows platform.
- APM and HTTP/2 are enabled on the same virtual.

Impact:
APM sessions will time out at the configured inactivity timeout regardless of activity and users will have to restart their sessions.

Workaround:
None.

---

600811-2 : CATEGORY::lookup command change in behaviour★

Component: Access Policy Manager

Symptoms:
Starting in v12.1.1, the CATEGORY::lookup iRule command will no longer accept an HTTP URI in its argument to the command if the BIG-IP system has APM+URL Filtering provisioned or just URL Filtering provisioned along for SSL Bypass decisions.

Only a valid hostname can be used and then have it's category returned.

In versions prior to v12.1.1, the following iRule command would be valid:

when HTTP_REQUEST {
  set this_uri http://[HTTP::host][HTTP::uri]
  set reply [CATEGORY::lookup $this_uri]
  log local0. "Category lookup for $this_uri returns $reply"
}

Starting in v12.1.1, the previous example you need to remove the HTTP::uri statement. If an HTTP::uri is provided to the command, an error will be returned

Jun 27 16:43:41 bigip4000-a41-1mgmt err tmm2[12601]: 01220001:3: TCL error: /Common/_1_categ_test <HTTP_REQUEST> - Categorization engine returned an error. invoked from within "CATEGORY::lookup $this_uri"

Started in v12.1.1, the example should be modified to pass in the HTTP::host only:

when HTTP_REQUEST {
  set this_uri http://[HTTP::host]
  set reply [CATEGORY::lookup $this_uri]
  log local0. "Category lookup for $this_uri returns $reply"
}

If APM and SWG are licensed and provisioned, the CATEGORY::lookup iRule command will accept an HTTP URI as a part of the argument to the command.

Conditions:
- BIG-IP licensed and provisioned for:
 - APM + URL Filtering
 - URL Filtering (used for SSL Bypass decisions in SSL Air-Gap deployments)
- An iRule which supplies a URI path to the CATEGORY::lookup iRule command

Impact:
Upgrading to v12.1.1 from previous versions that use the CATEGORY::lookup iRule command and use an HTTP::uri or pass in a plain text string with contains anything other than an HTTP hostname will see an error returned from the command. This can cause errors in existing deployments.

Workaround:
The required mitigation is to update the iRule to only pass an HTTP hostname to the CATEGORY::lookup iRule command

---

600614-4 : External crypto offload fails when SSL connection is renegotiated

Component: Local Traffic Manager

Symptoms:
If and external crypto offload client is configured with an SSL profile and renegotiation is enabled for the SSL profile, the crypto client connection will fail when the SSL connection is renegotiated.

Conditions:
External crypto offload client configured with an SSL profile with renegotiation enabled.

Impact:
Crypto client connection to the crypto server will fail.

Workaround:
Disable renegotiation on the SSL profile.

---

600593-1 : Use of HTTP Explicit Proxy and OneConnect can lead to an issue with CONNECT HTTP requests

Component: Local Traffic Manager

Symptoms:
After a CONNECT request is sent to the BIG-IP system and processed, if the client disconnects before a response is received from the server, the FIN is not propagated to the server-side and that connection remains open. If a client sends another CONNECT request to the same destination, the previous server-side flow is reused for the new request. Inspection of packet captures reveals that the BIG-IP system does not process the new CONNECT request as such, but instead forwards it to the server using the old server-side flow. This behaviour is incorrect. The CONNECT method should disable connection reuse, and the BIG-IP should close the server-side flow if the client disconnects first.

Conditions:
Use of HTTP Explicit Proxy and OneConnect together. CONNECT requests must arrive to the virtual server. The client must disconnect before the server responds.

Impact:
Some connections may fail. Depending on what data is sent to the server over an unintended connection, unpredictable results may be experienced.

Workaround:
You can apply the following iRule to the HTTP Explicit Proxy virtual server to mitigate the issue:

when HTTP_PROXY_REQUEST {
   if { [HTTP::method] equals "CONNECT" } {
      ONECONNECT::reuse disable
   }
   else {
      ONECONNECT::reuse enable
   }
}

---

600558-5 : Errors logged after deleting user in GUI

Component: TMOS

Symptoms:
After deleting a user in the BIG-IP GUI (under Access Policy :: Local User DB : Manage Users), the following symptoms may be observed:

1. After approximately 10 minutes, an error similar to the following appears in the LTM log (/var/log/ltm):

mcpd[25939]: 01070418:5: connection 0x5dde19c8 (user admin) was closed with active requests

This message may also appear in /var/log/webui.log and /var/log/tomcat/catalina.out.

2. After clicking Refresh, the GUI may not show the correct web page.

Conditions:
This has been reported most frequently when deleting local users (Access Policy :: Local User DB : Manage Users), but has been encountered in other ways. The issue might require deleting a user and then remaining on the Manage Users page until an internal timeout of approximately 10 minutes passes.

Impact:
Error messages logged.
GUI may not show the correct web page.

Workaround:
Use the CLI (tmsh) to delete local users.

---

600119-3 : DNS name resolution for servers outside of Network Access Name Split scope can be slow in some conditions

Component: Access Policy Manager

Symptoms:
When connected to the vpn and wifi adapter is enabled (not connected to any wlan) access to websites outside the vpn is very slow.
Access is fine when wifi interface is disabled.

Conditions:
- number of DNS servers configured for active network adapters matches the number of DNS servers configured in Network Access resource

Impact:
User experience while navigating servers outside of VPN scope is impacted by increased connection time

Workaround:
Disable unused adapters or change the number of configured DNS servers

---

599803 : TMM accelerated compression incorrectly destroying in-flight contexts.

Component: Performance

Symptoms:
You see a tmm core while using compression profiles.

Conditions:
Related to use of hardware compression.

Impact:
Report of a watchdog event, or an ASSERT generated by the compression layer. Traffic disrupted while tmm restarts.

Workaround:
Disable accelerated compression using the following command:

% tmsh modify sys db compression.strategy value softwareonly.

---

599769-4 : TMM may crash when managing APM clients.

Component: Local Traffic Manager

Symptoms:
When managing APM clients it is possible to encounter a rare tmm crash.

Conditions:
APM enabled and actively managing clients.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
None.

---

599567 : APM assumes snat automap, does not use snat pool

Component: Local Traffic Manager

Symptoms:
With a virtual configured to use a snat pool is also associated with APM (for example when configured as a RDP gateway), the snat pool setting is not honored.

Conditions:
Snat pool configured, APM configured (one example is deploying Horizon View iApp for ApM).

Impact:
The VLAN Self IP address is used instead of the snat pool addresses.

---

599543-1 : Cannot update (overwrite) PKCS#12 SSL cert & key while referenced in SSL profile

Component: TMOS

Symptoms:
When PKCS#12 cert and key are in use by SSL profiles, importing key/cert fails with the below error message:

Import Failed: Exception caught in Management::urn:iControl:Management/KeyCertificate::pkcs12_import_from_file_v2()
0107160f:3: Profile /Common/z-cssl's SSL forward proxy CA key and certificate do not match

Conditions:
1. When the cert and key are in the PKCS#12 format.
2. When the cert and key are in use by SSL profiles.

Impact:
When PKCS#12 cert and key are in use by SSL profiles, they can not be directly updated (overwritten) using key/cert import.

Workaround:
1. Remove the key/cert from the SSL profiles.
2. Update the key/cert.
3. Re-configure the key/cert back to the SSL profiles.

---

599536-1 : IPSec peer with wildcard selector brings up wrong phase2 SAs

Component: TMOS

Symptoms:
If a remote IPsec peer sends a wildcard (0.0.0.0/0 <-> 0.0.0.0/0) traffic-selector in phase2, the BIG-IP system will find a match against a non-wildcard selector and use that policy to complete phase2 negotiation.

Customers may encounter this problem if they have one or more remote peers attempting to negotiate phase2 with wildcard traffic-selectors. An IPsec tunnel may start but fail to pass data and at the same time another IPsec tunnel may stop working.

Conditions:
The remote IPsec peer sends a wildcard (0.0.0.0/0 <-> 0.0.0.0/0) traffic-selector in phase2. Phase1 must be established first.

Impact:
A tunnel will start, but data communication (over ESP or AH) will fail.
Other tunnels may be subject to an accidental DOS when a peer establishes phase1 but uses wildcard traffic-selectors in phase2. A traffic-selector matched by wildcard might be bound to a tunnel already in use, which is then taken offline by the new Security Associations.

---

599521-4 : Persistence entries not added if message is routed via an iRule

Component: Service Provider

Symptoms:
MRF SIP route table implementation does not add a persistence entry if the message was routed via an iRule.

Conditions:
If the message is routed via an iRule, a SIP persistence entry will not be created.

Impact:
Since MRF SIP persistence may be bidirectional, not having the persistence entry will keep message flowing in the opposite direction from being automatically routed via persistence.

Workaround:
An iRule could be used to route messages directed towards the original client.

---

599135-1 : B2250 blades may suffer from high TMM CPU utilisation with tcpdump

Component: Local Traffic Manager

Symptoms:
B2250 blades may suffer from continuous TMM CPU utilization when tcpdump has been in use.

Conditions:
Run tcpdump on a B2250 platform

Impact:
Increment in TMM CPU utilization with every run of tcpdump.

Workaround:
Restart TMM, avoid the use of tcpdump.

---

599054-2 : LTM policies may incorrectly use those of another virtual server

Component: Local Traffic Manager

Symptoms:
LTM policies may use policies configured on another virtual server.

Conditions:
- A configurations with several virtual servers and several configured ltm policies attached to those virtual servers.
- Configuration load: manually using the command tmsh load sys conf, or automatically by an upgrade or full config-sync.

Impact:
LTM policies get incrementally added to virtual servers as the policies are compiled, causing unexpected traffic handling decisions based on other policies.

Workaround:
Do not run tmsh load sys conf if you have policies configured. After an upgrade or full config-sync issuing a bigstart restart command or restarting the device will fix this condition.

---

598981-3 : APM ACL does not get enforced all the time under certain conditions

Component: Access Policy Manager

Symptoms:
Particularly when the box is very busy, or using certain applications, ACL is not applied for certain sessions. This issue may not consistently reproduced.

Conditions:
Brief summary:
If one TMM process more than 6 connections for a particular session during ACL construction time window, that particular TMM was not applying ACL for further connections for that particular session.

Details of the mechanism of the issue:
Each TMM constructs the ACL for each session whenever a connection associated with a particular session was being processed by that TMM. During this time, until the construction is completed, any further connections associated with the same session and being processed by the same TMM will be queued. When the construction is completed, TMM applies the ACL to these queued connections up to 6 connections for each cycle, and then switches context. The expected behavior is that some time later, applying ACL for this session will be resumed, and applying another 6 connections if any, until the all the queued entries are exhausted. The switching context had a bug, that results to not applying ACL after 6th connections for this TMM for that specific session.

The following conditions individually increase the chances for this problem to occur:
1. Box is very busy. (Construction of ACL windows is prolonged)
2. Concentration of connections into one TMM. (e.g. VPN feature)
3. Small number of TMMs (e.g. BIG-IP low end platform, VEs)
4. Application starts with a high number of concurrent connections.

Impact:
ACL is not applied for subsequent connections for that TMM.

Workaround:
Mitigation:
Administrator can kill the affected session, and this will enforce the user to re-login, hence, restart the ACL construction process.

---

598874-11 : GTM Resolver sends FIN after SYN retransmission timeout

Component: Local Traffic Manager

Symptoms:
If a DNS server is not responding to TCP SYN, GTM Resolver sends a FIN after a retransmission timeout (RTO) of the SYN.

Conditions:
GTM Resolver tries to open a TCP connection to a server that does not respond.

Impact:
Firewalls may log the FIN as a possible attack.

---

598854-3 : sipdb tool incorrectly displays persistence records without a pool name

Component: Service Provider

Symptoms:
MRF SIP persistence records added for a forwarding route (a peer object without a pool), will not be displayed properly by sipdb

Conditions:
If a persistence record is added for a route that does not contain a pool, this persistence entry will not be displayed correctly.

Impact:
The persistence entry is correctly stored in the persistence table and will operate correctly. Due to the bug in the sipdb tool, this entry will not be viewable for debugging purposes.

---

598748 : IPsec AES-GCM IVs are now based on a monotonically increasing counter

Component: TMOS

Symptoms:
IPsec was using random IVs.

With random IVs and shortest packets the complete integrity loss will happen before 8 Gb of data are exchanged over the security association in one direction (assuming probability of collision at 0.1%).

Conditions:
Use of AES-GCM or GMAC in IPsec.

Impact:
The use of random IVs limits the amount of traffic that can be sent with AES-GCM in IPsec.

Workaround:
The workaround is to limit the amount of traffic per above guidelines for long-lived security associations in IPsec.

A re-key before 10 Gbyte of data are exchanged is recommended. For 1 Gbps connection the rekey should happen in under 1 min (100 Mbps -- 15 min, 10 Gbps -- 10 sec).

---

598700-4 : MRF SIP Bidirectional Persistence does not work with multiple virtual servers

Component: Service Provider

Symptoms:
Messages received by different virtual servers (sharing the same router) are not able to be properly routed using the call-id persistence.

Conditions:
A router with multiple virtual servers bridging between networks are not able to use the same call-id persistence entry for routing messages. Messages trying to use a persistence entry created by a different virtual server may be routed to the wrong device.

Impact:
Messages received on another virtual server trying to use the persistence entry will be routed to the wrong device.

---

598697 : vCMP guests may fail after vCMP host system is upgraded to BIG-IP v12.1.x when 'qemu' user isn't created★

Component: TMOS

Symptoms:
After installing v12.1.0 on a vCMP host system the guests don't start anymore and remain in "failed" state.

Errors similar to these are logged in the ltm log file:

Jun 10 08:17:22 slot1/VIP4480-R68-S26 crit vcmpd[14354]: 01510003:2: User "qemu" doesn't exist
<..>
Jun 10 08:17:22 slot1/VIP4480-R68-S26 err vcmpd[14354]: 01510004:3: Guest (test-guest): Failure - Error starting VM.
Jun 10 08:17:22 slot1/VIP4480-R68-S26 info vcmpd[14354]: 01510007:6: Guest (test-guest): VS_STARTING->VS_FAILED

Conditions:
Upgrade vCMP host to v12.1.0 or higher
vCMP host system was originally installed with v11.6.0 or older builds.

Impact:
After installing v12.1.0 on a vCMP host system the guest don't start anymore and remain in "failed" state.

Workaround:
Workaround is to run the following command:

useradd -r -u 107 -g qemu -G kvm -d / -s /sbin/nologin -c "qemu user" qemu

then:
 
bigstart restart vcmpd

---

598650-1 : apache-ssl-cert objects do not support certificate bundles

Component: TMOS

Symptoms:
The Traffic Management Shell (tmsh) documents command options for apache-ssl-cert objects that suggest that Apache SSL Certificates (apache-ssl-cert objects) support certificate bundles.
References to certificate bundles in context of the 'bundle-certificates', 'subject' and 'is_bundle' fields are in error, and should refer to single certificates only.
Apache SSL Certificates (apache-ssl-cert objects) do not actually support certificate bundles.
On BIG-IP v11.5.0 and later, attempting to create Apache SSL Certificate objects from a certificate bundle will result an error like the following:
01070712:3: Values (/Common/certificate_name) specified for Certificate Bundle Entity (/Common/certificate_name.0 /Common/certificate_name): foreign key index (certificate_file_object_FK) do not point at an item that exists in the database.

Conditions:
Attempting to create Apache SSL Certificate objects from a certificate bundle.

Impact:
Unable to create Apache SSL Certificate objects from a certificate bundle.

---

598498-7 : Cannot remove Self IP when an unrelated static ARP entry exists.

Component: TMOS

Symptoms:
Cannot remove a self-IP when an unrelated static ARP entry exists. The system produces an error similar to the following: err mcpd[6743]: 01071907:3: Cannot delete IP <addr> because it would leave a static neighbor (ARP/NDP) entry unreachable.

Conditions:
Static arp entry exists, and there are no Self IP addresses on the same subnet as the static ARP entry. When in this condition, none of the Self IP addresses can be deleted.

Impact:
Must delete static ARP entries in order to delete Self IP addresses.

Workaround:
None.

---

598294-1 : In rare cases, tmm might crash with ASM enabled.

Component: Advanced Firewall Manager

Symptoms:
A rare crash exists in tmm when passing traffic with ASM enabled

Conditions:
This is a rare core in tmm that might occur when ASM is enabled

Impact:
Traffic disrupted while tmm restarts.

Workaround:
None.

---

598211-1 : Citrix Android Receiver 3.9 does not work through APM in StoreFront integration mode.

Component: Access Policy Manager

Symptoms:
During the logon to Citrix StoreFront through an APM virtual server, after the login page, the BIG-IP system sends the client the following error: Error 404 file or directory not found.

Conditions:
This occurs when the following conditions are met:
- Citrix Android receiver 3.9.
- APM is in integration mode with Citrix StoreFront.
- Storefront unified experience mode is enabled.

Impact:
Cannot access Citrix StoreFront unified UI through Android Receiver 3.9.

Workaround:
For StoreFront integration mode, there is an iRule that is created by the iApp that redirects the root page to the store's URI. The workaround is to add an additional redirect for the receiver_uri ending with receiver.html. The iRule below contains this workaround.
It is also recommended to delete and recreate the existing store account.

when HTTP_REQUEST {
    if { [regexp -nocase {/citrix/(.+)/receiver\.html} [HTTP::path] dummy store_name] } {
        log -noname accesscontrol.local1.debug "01490000:7: setting http path to /Citrix/$store_name/"
        HTTP::path "/Citrix/$store_name/"
    }
}

---

598052-1 : SSL Forward Proxy "Cache Certificate by Addr-Port", cache lookup fails

Component: Local Traffic Manager

Symptoms:
When enabling the SSL Forward Proxy "Cache Certificate by Addr-Port" on the client SSL profile, later flows on cached certificate lookups by "Addr-Port" do not hit the cache.

Conditions:
Enable SSL Forward Proxy and use "Cache certificate by Addr-Port".

Impact:
The client side certificate lookup failed, it may trigger the server side SSL handshake.

---

598039-7 : MCP memory may leak when performing a wildcard query

Component: TMOS

Symptoms:
MCP's umem_alloc_80 cache (visible using tmctl -a) increases in size after certain wildcard queries. Accordingly, the MCP process shows increased memory usage.

Conditions:
Folders must be in use, and the user must execute a wildcard query for objects that are in the upper levels of the folder hierarchy (i.e. not at the very bottom of the folder tree).

Impact:
MCP loses available memory with each query. MCP could eventually run out of memory and core, resulting in an outage or failover (depending on whether or not the customer is running in a device cluster).

Workaround:
Do not perform wildcard queries.

---

597978-3 : GARPs may be transmitted by active going offline

Component: Local Traffic Manager

Symptoms:
GARPs may be transmitted by the active when going offline. As the standby which takes over for the active will also transmit GARPs, it is not expected that this will cause impact.

Conditions:
Multiple traffic-groups configured and active goes offline.

Impact:
It is not expected that this will cause any impact.

Workaround:
Make the unit standby before forcing offline.

---

597835-5 : Branch parameter in inserted VIA header not consistent as per spec

Component: Service Provider

Symptoms:
MRF SIP in LoadBalancing Operation Mode inserts a VIA header to SIP request messages. This VIA header is removed from the returned response message. The VIA header contains encrypted routing information to route the response message. The SIP spec states that all messages in the same transaction should contain the same branch header. The code used to encrypt the branch field returns a different value each time.

Conditions:
Enabling SIP Via header insertion on the BIGIP on SIP MRF profile and need to cancel an INVITE

Impact:
Some servers have code to verify the brach fields in the VIA header do not change within a transaction. These servers complain when they see the fields change.

---

597818-2 : Unable to configure IPsec NAT-T to "force"

Component: TMOS

Symptoms:
When configuring IPsec NAT traversal to "Force", the behavior is as if the setting is "Off".

Conditions:
Configuring IPsec NAT Traversal to Force

Impact:
NAT-T does not work

Workaround:
Configure NAT-T to On instead.

---

597729-5 : Errors logged after deleting user in GUI

Component: TMOS

Symptoms:
After deleting a user in the BIG-IP GUI (under Access Policy :: Local User DB : Manage Users), the following symptoms may potentially be observed:

1. After approximately 10 minutes, an error similar to the following may appear in the LTM log (/var/log/ltm):

mcpd[25939]: 01070418:5: connection 0x5dde19c8 (user admin) was closed with active requests

Such message may also appear in /var/log/webui.log and /var/log/tomcat/catalina.out.

2. After clicking Refresh, the GUI may not show the correct web page.

Conditions:
It is possible that this error could be encountered when deleting local users (Access Policy :: Local User DB : Manage Users), and may theoretically be encountered in other ways. The issue might require deleting a user and then remaining on the Manage Users page until an internal timeout of approximately 10 minutes passes.

Impact:
Error messages logged.
GUI may not show the correct web page.

Workaround:
Use the CLI (tmsh) to delete local users.

---

597708-5 : Stats are unavailable and VCMP state and status is incorrect

Component: Local Traffic Manager

Symptoms:
Unable to retrieve statistics or statistics are all 0 (zero) when they should not be zero.

This is VCMP related.

Guest Virtual-disk always show in-use even when guest not in the running state.

When the guest OS is shut down, the GUI and TMSH do not show accurate information about status.

Conditions:
If a directory is removed from /shared/tmstat/snapshots merged might run at 100% CPU utilization and become unresponsive.

Impact:
No statistics are available. Some statistics, such as traffic stats from TMM, will not be updated, though they may be non-zero. Others, such as system CPU stats that are calculated by merged, will be zero. This will be evident through all management interfaces such as TMSH, TMUI, SNMP, etc.

VCMP guest O/S status is reportedly incorrectly.

Workaround:
If merged is hung, restart the daemon using the following command:
bigstart restart merged.

To prevent the issue from occurring, disable tmstat snapshots using the following command:
tmsh modify sys db merged.snapshots value false.

---

597601-3 : Improvement for a previous issue regressed NAT-T

Component: TMOS

Symptoms:
An earlier improvement request regressed NAT-T whereby phase2 cannot establish.

Conditions:
Using NAT-T with IKEv1.

Impact:
NAT-T does not work.

---

597564-3 : 'tmsh load sys config' incorrectly allows the removal of the 'app-service' statement from configuration items

Component: TMOS

Symptoms:
The 'tmsh load sys config' command incorrectly allows users to manually remove the 'app-service' statement from configuration items. For example, if a user is manually editing the bigip.conf file, and they remove the 'app-service' statement from a virtual server, 'tmsh load sys config' will not fail to load the config, which is incorrect.

Conditions:
A user manually edits a BIG-IP configuration file and improperly removes the 'app-service' statement from an object.

Impact:
The lack of the 'app-service' statement effectively disassociates the object from its Application Service. This can lead to further issues down the line. For example, if the object is then updated on a multi-blade VIPRION system, secondary blades will restart with an error similar to the following example:

May 6 08:18:27 slot2/VIP2400-R16-S10 err mcpd[32420]: 01070734:3: Configuration error: Configuration from primary failed validation: 010715bd:3: The parent folder is owned by application service (/Common/dummy.app/dummy), the object ownership cannot be changed to ().... failed validation with error 17241533.

Workaround:
Exercise caution when manually editing BIG-IP configuration files.

---

597532-1 : iRule: RADIUS avp command returns a signed integer

Component: Local Traffic Manager

Symptoms:
iRules that process attribute-value pairs from RADIUS treat integers as signed when they should be treated as unsigned.

Conditions:
iRules using RADIUS::avp to retrieve data

Impact:
iRules using the RADIUS::avp command will not work as expected.

Workaround:
The result can be casted to an unsigned integer after obtaining the value, as follows:

ltm rule radius_avp_integer {
    when CLIENT_DATA {
                set charid_integer [RADIUS::avp 26 "integer" index 0 vendor-id XXXXX vendor-type Y]
                set unsigned_charid_integer [expr {$charid_integer & 0xFFFFFFFF}]
}
}

Note that tmm internally treats avp values as signed integers so this might not completely correct the issue.

---

597431-7 : VPN establishment may fail when computer wakes up from sleep

Component: Access Policy Manager

Symptoms:
EdgeClient doesn't cleanup routing table before windows goes to hibernate. This may result in establishment of VPN when computer wakes up. It may also result in other network connectivity issues

Conditions:
-VPN connection is not disconnected
-Computer goes in hibernation

Impact:
Issues with Network connectivity

Workaround:
Renew DHCP lease by running
ipconfig/renew.

or

reboot the machine.

---

597303-1 : "tmsh create net trunk" may fail

Component: TMOS

Symptoms:
When a trunk is created with "tmsh create net trunk", with LACP enabled or disabled, the addition of a trunk member may fail. When it fails, there will be log in /var/log/ltm like

Jun 3 13:27:15 localhost err bcm56xxd[8763]: 012c0011:3: bs_trunk_addr_set: unit=0 Invalid parameter bs_trunk.cpp(2406)
Jun 3 13:27:15 localhost err bcm56xxd[8763]: 012c0011:3: Trouble setting trunk 1, unit 0 bs_trunk.cpp(2591)
Jun 3 13:27:15 localhost err bcm56xxd[8763]: 012c0011:3: SDK error Invalid parameter bs_trunk.cpp(2592)
Jun 3 13:27:15 localhost err bcm56xxd[8763]: 012c0010:3: Trouble setting trunk: unit=0, trunk=testTrunk bs_trunk.cpp(1886)
Jun 3 13:27:15 localhost err bcm56xxd[8763]: 012c0010:3: Trouble adding interface to trunk=testTrunk bsx.c(3109)

Conditions:
The problem tends to happen when a trunk is created right after it is deleted. If you wait for over 30 seconds, it is unlikely to happen.

Impact:
A trunk can't be created, and no trunk members can be added.

Workaround:
Wait for over 30 seconds before adding back the same trunk.

---

597253-2 : HTTP::respond tcl command may incorrectly identify parameters as ifiles

Component: Local Traffic Manager

Symptoms:
The HTTP::respond iRule command may incorrectly identify parameters as an iFile parameter when attaching the iRule to a Virtual Server.

Conditions:
HTTP::respond command making use of a variable as a header name. For instance:

HTTP::respond 500 -version 1.1 content "<content>" "$VariableHeaderName" "header_value_text" "Connection" "close"

Configure a HTTP/TCP virtual server and attach the iRule.

Impact:
1070151:3: Rule [/Common/example_rule] error: Unable to find ifile (header_value_text) referenced at line 3: [HTTP::respond 500 -version 1.1 content "<content>" "$VariableHeaderName" "header_value_text" "Connection" "close"]

Workaround:
Ensure the offending header name and value are either both literal strings or variables.

---

597214-3 : Portal Access / JavaScript code which uses reserved keywords for field names in literal object definition may not work correctly

Component: Access Policy Manager

Symptoms:
JavaScript code with literal object definition containing field names equal to reserved keywords is not handled correctly by Portal Access.

Conditions:
JavaScript code with literal object definition containing fields with reserved keywords as a name, for example:

var a = { default: 1, continue: 2 };

Impact:
JavaScript code is not rewritten and may not work correctly.

Workaround:
It is possible to use iRule to rename field names in original code.

---

597089-7 : Connections are terminated after 5 seconds when using ePVA full acceleration

Component: Local Traffic Manager

Symptoms:
When using a fast L4 profile with ePVA full acceleration configured, the 5-second handshake timeout is not being updated to the idle timeout after the handshake is completed. The symptom is an unusually high number of connections getting reset in a short period of time.

Conditions:
It is not known all of the conditions that trigger this, but it is seen when using the fast L4 profile with pva-acceleration set to full

Impact:
High number of connections get reset, performance issue

Workaround:
Disabling the pva resolves the issue.

---

596826-5 : Don't set the mirroring address to a floating self IP address

Component: TMOS

Symptoms:
Using tmsh, you can configure the mirroring IP address using the command tmsh modify cm device devicename mirror-secondary-ip ip_address

It is possible to set ip_address to a floating self IP address when using tmsh, but BIG-IP can't mirror to a floating self IP address.

Conditions:
Accidentally setting the mirroring IP address to the floating self IP address using tmsh.

Impact:
Mirroring does not work in this case.

Workaround:
Change the mirroring address to a non floating self IP address. The GUI will only present non floating self IP addresses.

For more information about mirroring, see SOL13478: Overview of connection and persistence mirroring at https://support.f5.com/kb/en-us/solutions/public/13000/400/sol13478.html

---

596815-1 : System DNS nameserver and search order configuration does not always sync to peers

Component: TMOS

Symptoms:
Modifying the System DNS nameserver and search order configuration does not always sync during an incremental sync if modified in the GUI or tmsh modify sys db.

Conditions:
The device is in a failover device group with incremental sync turned on.

In the GUI, modify the DNS Lookup Server List or the DNS Search Domain List fields under System >> Configuration : Device : DNS.

In tmsh, tmsh modify sys db dns.nameserver (or dns.domainname), and in some cases tmsh modify sys dns name-servers (or search)

Impact:
Modifications will not change the sync status nor sync the change to peers.

Workaround:
Perform a full sync or use 'tmsh modify sys dns name-servers replace-all-with' or 'tmsh modify sys dns search replace-all-with'.

Optionally, to get this setting to sync, modify the file /config/BigDB.dat to set realm=common for [DNS.NameServers] and [DNS.DomainName] and restart mcpd on all devices in the failover device group. However, this file may get overridden on a hotfix or upgrade.

---

596809-1 : It is possible to create ssh rules with blank space for auth-info

Component: Advanced Firewall Manager

Symptoms:
In tmsh it is possible to create profile actions that contain blank spaces, such as in this example:

create security ssh profile ssh-test actions add { " " } rules add { " " { actions add { " " } identity-users add { " "} identity-groups add { " " } } } auth-info add { " " }

Conditions:
This occurs when creating profile actions.

Impact:
Actions can be created with blank spaces in them, you should be receiving a validation error. These rules also cannot be deleted.

Workaround:
Do not create profile actions with blank spaces.

---

596674-1 : High memory usage when using CS features with gzip HTML responses.

Component: Application Visibility and Reporting

Symptoms:
AVR use consumes a lot of memory while trying to decompress responses. This can cause tmm core during stress traffic.

Conditions:
-- Enabled Dosl7d virtual server with CS features.
-- The server is sending compressed responses.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
None.

---

596631-1 : SIP MRF: Wrong listener may be deleted during media deny-listener deletions, causing crash later

Component: Service Provider

Symptoms:
A SIP media flow deny-listener was to have been deleted but an unrelated listener was deleted instead due to an incorrect address/port match.

For example, when the wrongly deleted listener is later meant to be deleted, there might be a SIGFPE with assertion failure "Assertion "bound listener" failed.".

Conditions:
A SIP MRF media flow existed and was deleted.
An unrelated flow exists with an address/port with wildcards such that it includes that of the media flow.

Impact:
Later when the wrongly deleted listener is referenced, the TMM crashes.

---

596502-2 : Unable to force Bot Defense action to Allow in iRule

Component: Advanced Firewall Manager

Symptoms:
When a request is being blocked (or challenged with CAPTCHA) due to being a suspicious browser, the action cannot be forced to allow in the iRule

Conditions:
This occurs when a bot defense action is triggered on suspicious browser, and you wish to allow the request to go through anyway and not send a RST.

Impact:
The bot defense action cannot be forced to "allow", the RST will still be sent.

---

596433-2 : Virtual with lasthop configured rejects request with no route to client.

Component: Local Traffic Manager

Symptoms:
Virtual with lasthop pool configured rejects requests which are sourced from MAC address which is not configured in the lasthop pool.

Conditions:
This issue occurs when the following conditions are meet:

- Virtual with lasthop pool.
- Connection sourced from MAC address which is not configured in the lasthop pool.
- Lasthop pool member is local to TMM.
- tm.lhpnomemberaction db key is set to 2.

Impact:
Connection is erroneously reset with no route to client.

Workaround:
- Change tm.lhpnomemberaction db key to 0 or 1 (behavior change).
- Add IP address for lasthop member which client is originating from to lasthop pool.

---

596242-1 : [zxfrd] Improperly configured master name server for one zone makes dns express responds with previoius record

Component: Local Traffic Manager

Symptoms:
Improperly configured master name server for one zone prevented updates to properly configured other zones
from propagating to tmm, thus making dns express respond with previous record.

Conditions:
A wrongly configured dns zone which could not get update correctly.

Impact:
DNS express returns incorrect answers.

Workaround:
Fix the wrongly configured dns zone.

---

596116-3 : Ldap Query does not resolve group membership, when required attribute(s) specified

Component: Access Policy Manager

Symptoms:
corresponding session variable session.ldap.last.memberOf contains only the groups user directly belongs to.

Conditions:
when Ldap Query is configured with option
"Fetch groups to which the user or group belong" set to "All"
AND
required attribute is set to "memberOf",
only direct groups are populated into session variable

Impact:
group mapping fails

Workaround:
you need to add one more attribute to the "required attributes" list: "objectClass"

when your backend is MS Active Directory, you may want to add one more attribute to the list: primaryGroupID
to get all groups including primary group

---

596104-3 : VCMP guest fails to load config with HA trunk configured

Component: TMOS

Symptoms:
If a VCMP guest is configured with an HA trunk (such as, when loading such a configuration created with an earlier version of BIG-IP), the configuration load will fail with a message similar to the following:

err mcpd[5926]: 01071569:3: Ha group ha_group threshold for trunk _your_trunk_name_here_ 1 is greater than the maximum number of members 0.

Conditions:
This occurs when loading a configuration from a VCMP guest created in a previous version that had an HA trunk configured.

Impact:
Unable to load config with HA trunk on VCMP guest.

Workaround:
Manually setting the HA trunk threshold to 0 will allow the configuration to load; however, this disables the HA trunk feature.

---

596067-2 : GUI on VIPRION hangs on secondary blade reboot

Component: TMOS

Symptoms:
After rebooting a VIPRION chassis, the GUI suddenly becomes unresponsive several minutes after the reboot.

Conditions:
It is not known exactly triggers this as it is a race condition that occurs on system start, but it is believed that Enterprise Manager making queries against the VIPRION for non-chunked statistics while the blade(s) has not fully started will trigger this condition.

Impact:
GUI becomes unresponsive

Workaround:
bigstart restart httpd will clear this condition if it occurs.

---

595773-8 : Cancellation requests for chunked stats queries do not propagate to secondary blades

Component: TMOS

Symptoms:
Canceling a request for a chunked stats query (e.g. hitting ctrl-c during "tmsh show sys connection") does not stop data flowing from secondary blades.

Conditions:
A chassis-based system with multiple blades. Users must execute a chunked stats query (e.g. "tmsh show sys connection") and then cancel it before it finishes (e.g. with ctrl-c in tmsh).

Impact:
Unnecessary data will be sent from TMM to secondary mcpd instances, as well as from secondary mcpd instances to the primary mcpd instance. This could cause mcpd to restart unexpectedly.

---

595693 : Incorrect PVA indication on B4450 blade

Component: TMOS

Symptoms:
When you run guishell -c "select HAS_PVA, PVA_VERSION from platform" on a B4450 blade (which includes PVA), the output indicates that it does not have PVA.

Conditions:
This occurs when looking at platform information on B4450 blades.

Impact:
PVA acceleration is not detected properly

---

595617-1 : Modifying an IPsec tunnel and IPsec plus IKE SA does not remove the remote SA.

Component: TMOS

Symptoms:
When modifying the ipsec-tunnel-profile, the BIG-IP system deletes the IKEv1 phase 2 SAs locally, but does not inform the remote IPsec peer.

Conditions:
- Configuration uses both IPsec 'interface' mode tunnel(s) and IKEv1.
- A user modifies ipsec-tunnel-profile. Namely found here:
  -- web UI 'Network : Tunnels : Profiles : IPsec Interface : ipsec-tunnel-profile'.
  -- tmsh 'net tunnels ipsec ipsec-tunnel-profile'.

Impact:
A traffic outage on one tunnel when the remote IPsec peer is generally plays the role of Initiator. The remote system, will not attempt to establish a new tunnel because it believes that a valid SA exists.

Workaround:
Delete the defunct IPsec SA from the remote peer. If the remote IPsec peer is also a BIG-IP system, then restarting tmipsecd can be employed, however this will cause all IPsec tunnels to restart.

---

595605 : Upgrades from 11.6.1 or recent hotfix rollups to 12.0.0 may fail★

Component: TMOS

Symptoms:
An upgrade to BIG-IP v12.0.0 will fail when all of the following conditions are met:
- AVR provisioned
- Upgrading to v12.0.0 from the following versions :
  - 11.6.1

Certain engineering hotfixes are also affected.

Conditions:
The following Engineering Hotfixes are affected.

- 11.6.0-hf5 EHF index 110 (Hotfix-BIGIP-11.6.0.5.110.429-HF5-ENG.iso)
- 11.6.0-hf5 EHF Index 214
- 11.6.0-hf5 EHF index 233
- 11.6.0-hf6 EHF index 240

11.6.1 is also affected.

Impact:
The upgrade to 12.0.0 will succeed but the configuration will fail to load.

This can be detected by running tmsh load sys config verify. You will see the following signature:

Unexpected Error: "Can't load keyword definition (analytics-report.device_group)"

Workaround:
12.1.1 is schema compatible with 11.6.1, so upgrade to 12.1.1 instead.

---

595272-1 : Edge client may show a windows displaying plain text in some cases

Component: Access Policy Manager

Symptoms:
Under captive portal environment, sometimes edge client may show a windows with some plain text content.

Conditions:
Edge client is launched when users machine is inside captive portal network.

Impact:
User may not be able to establish VPN

Workaround:
Authenticate to captive portal using browser and Launch edge client again.

---

595227-1 : SWG Custom Category: unable to have a URL in multiple custom categories

Component: Access Policy Manager

Symptoms:
When configuring a url in multiple categories you receive a validation error message:
May 19 16:13:44 bigip12 err mcpd[8992]: 010717f3:3: Custom category (/Common/category_allow_group2) has invalid URL (http://172.16.20.1/*). Reason: You cannot have the same URL in two or more custom categories. URL used in category (/Common/category_allow_group1).

Conditions:
Configuring the same URL in multiple custom categories.

Impact:
Unable to have the same URL in multiple custom categories, and therefore cannot configure the system to have a URL allowed for one group but not for another.

Workaround:
None

---

594869-4 : AFM can log DoS attack against the internal mpi interface and not the actual interface

Component: Advanced Firewall Manager

Symptoms:
While under an attack that matches a DoS profile, BIG-IP may indicate that the interface is the internal mpi interface and not the interface that the attack is happening on.

Conditions:
This can occur in CMP-enabled systems.

Impact:
A valid DoS attack will be misreported

---

594426-3 : Audit forwarding Radius packets may be rejected by Radius server

Component: TMOS

Symptoms:
The Accounting-Request packets are missing two required AVPs (Attribute Value Pair), Acct-Session-ID and Acct-Status-Type. Some Radius servers drop Radius Accounting-Requests which are missing these AVPs.

Conditions:
Configured to use audit forwarding with radius and audit messages are not logged on the Radius server.

Impact:
Unable to log audit messages from BIG-IP using audit forwarding.

---

594288-1 : Access profile configured with SWG Transparent results in memory leak.

Component: Access Policy Manager

Symptoms:
Access profile configured with SWG Transparent results in memory leak.

Conditions:
Create an access profile of type SWG Transparent, and assign to a virtual. Run traffic through this virtual.

Impact:
TMM leaks memory.

Workaround:
None

---

593925-1 : ssh profile should not contain rules that begin and end with spaces (cannot be deleted)

Component: Advanced Firewall Manager

Symptoms:
When attempting to delete a rule for an ssh profile and committing the changes in the GUI, you get an error: "Operation is not supported on property /security/ssh/profile/~Common~ssh-test/rules."

Conditions:
This occurs if you previously created ssh profile rules that contain spaces in them, such as this example:

create security ssh profile ssh-test actions add { " " } rules add { " " { actions add { " " } identity-users add { " "} identity-groups add { " " } } } auth-info add { " " }

Impact:
Unable to delete the rules

---

593696-1 : Sync fails when deleting an ssh profile

Component: Advanced Firewall Manager

Symptoms:
After creating an ssh profile and successfully syncing it to the sync group, you later delete the profile and sync fails with this error on the target device:
"err mcpd[5178]: 01071488:3: Remote transaction for device group /Common/syncme to commit id 6 6285666289815053813 /Common/bigip2.mysite.com 0 failed with error 01071aaf:3: SSH profile: [/Common/ssh1] default actions is required and cannot be removed."

Conditions:
This is triggered when deleting an ssh profile that has been synced in a sync group. Sync group is configured for manual sync. It is not known if automatic sync also exhibits this behavior.

Impact:
Sync fails.

---

593530-4 : In rare cases, connections may fail to expire

Component: Local Traffic Manager

Symptoms:
Connections have an idle timeout of 4294967295 seconds.

Conditions:
Any IP (ipother) profile is assigned to virtual server.

Impact:
Connections may linger.

Workaround:
None.

---

593390-4 : Profile lookup when selected via iRule ('SSL::profile') might cause memory issues.

Component: Local Traffic Manager

Symptoms:
If an iRule selects a profile using just its name, not the full path, the internal lookup might fail. This might cause a new version of the profile to be instantiated, leading to memory issues.

Conditions:
An iRule calls SSL::profile but does not supply the complete path (e.g., /Common/clientssl); rather, the iRule uses only the profile name.

Impact:
Higher memory usage than necessary.

Workaround:
Always have iRules select profiles using the complete path.

---

593361-1 : The malformed MAC for inner pkt with dummy MAC for NSH with VXLAN-GPE.

Component: TMOS

Symptoms:
The target platform implementation need to be ensure that it is update to date with draft and additionally tested with other open sources and commercial implementations to deem stable. If not a stable and production version as in case below, sender packets can be with a dummy MAC which is not recognized by BIG-IP.

Conditions:
Target platforms which may be unstable and untested in VXLAN-GPE.

Impact:
BIG-IP drop packets since it does not recognize inner pkt MAC.

Workaround:
Ensure target platform is stable, tested and production version wrt VXLAN-GPE and NSH.

---

593070-6 : TMM may crash with multiple IP addresses per session

Component: Policy Enforcement Manager

Symptoms:
TMM crash

Conditions:
A session with multiple IP addresses with PCRF communication for dynamic policy management may have a crash credits to a race condition.

Impact:
Traffic disrupted while tmm restarts.

---

592870-2 : Fast successive MTU changes to IPsec tunnel interface crashes TMM

Component: TMOS

Symptoms:
Changing IPsec tunnel interface MTU attribute repeatedly in quick succession, TMM cores. This can occur whether or not traffic has flowed through the tunnel.

Impact:
TMM cores. This might result in site unavailability.

Workaround:
Change IPsec tunnel interface attributes at a rate of speed that allows each configuration modification to complete.

---

592868-6 : Rewrite may crash processing HTML tag with HTML entity in attribute value

Component: Access Policy Manager

Symptoms:
If HTML page contains HTML entities in attribute values, rewrite may crash processing this page.

Conditions:
HTML tag like this:
<script src="&#10;" type="text/javascript"></script>

Impact:
Web application may not work correctly.

Workaround:
In most cases HTML entities can be replaced by appropriate characters by iRule.

---

592784-2 : Compression stalls, does not recover, and compression facilities cease.

Component: Local Traffic Manager

Symptoms:
Compression stalls, does not recover, and compression facilities may cease.

Conditions:
A device error of any kind, or requests that result in the device reporting an error (for example, attempting to decompress an invalid compression stream).

Impact:
In general, compression stops altogether. Under some circumstances, compression requests may end up routed to zlib (software compression), but generally the SSL hardware accelerator card does not correctly report that it is unavailable when it stalls.

Workaround:
Select the softwareonly compression provider by running the following tmsh command: tmsh modify sys db compression.strategy value softwareonly.

---

592497-1 : Idle timeout ineffective for FIN_WAIT_2 when server-side expired and HTTP in fallback state.

Component: Local Traffic Manager

Symptoms:
While passing normal traffic, CPU utilization of one or more tmms suddenly goes to 100% as viewed by top and remains there indefinitely.

Conditions:
Idle timeout for tcp flows in FIN_WAIT_2.

Impact:
There is a rare occurrence in which tmm might result in 100% CPU busy.

Workaround:
None.

---

592414-5 : IE11 and Chrome throw "Access denied" during access to any generic window property after document.write() into its parent has been performed

Component: Access Policy Manager

Symptoms:
IE11 and Chrome throw "Access denied" during access to any generic window property after document.write() into its parent has been performed from dynamically generated child.

Conditions:
Browsers: IE11 and Chrome
When: After document.write() into its parent has been performed from dynamically generated child.

Impact:
Web application malfunction.

Workaround:
None.

---

592113-3 : tmm core on the standby unit with dos vectors configured

Component: Advanced Firewall Manager

Symptoms:
On the standby unit with mirrored connections configured, uninitialized dos_vectors may cause core dump

Conditions:
HA setup, mirroring enabled on a virtual that has dos vectors configured

Impact:
Traffic disrupted while tmm restarts.

---

592070-5 : DHCP server connFlow when created based on the DHCP client connFlow does not have the traffic group ID copied

Component: Policy Enforcement Manager

Symptoms:
Variables in the flow context when stored in the sessionDB cannot be shared since the traffic groups of the server and client flows are different.

Conditions:
DHCP virtual created in a non-local traffic group.

Impact:
Variable sharing in the TCL context will not work.

Workaround:
Modify SysDb variable "Tmm.SessionDB.match_ha_unit" to disable the use of traffic-group ID while accessing the sessionDB.

---

591840-1 : encryption_key in access config is NULL in whitelist

Component: Access Policy Manager

Symptoms:
encryption_key in access config is NULL sometime when applying 404 whitelist action and will result in TMM crash.

Conditions:
All the following must be true:
- Access policy action resulted in a "not found".
- The session corresponding to above action must be expired.
- FIPS platform.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
None.

---

591659-5 : Server shutdown is propagated to client after X-Cnection: close transformation.

Component: Local Traffic Manager

Symptoms:
Server shutdown is propagated to client after X-Cnection: close transformation.

Conditions:
In OneConnect configurations, when a server's maximum number of keep-alives is exceeded, the server closes the connection between itself and the BIG-IP system. This Connection: Close is transformed to an X-Cnection: close and sent to the Client along with a TCP FIN.

Impact:
Client side connections are closed by the BIG-IP system too early, causing subsequent requests to be dropped.

Workaround:
None.

---

591590-1 : APM policy sync results are not persisted on target devices

Component: Access Policy Manager

Symptoms:
Policy sync results, including profile, sync folder, new partition, statuses, history are not persisted on target devices after sync, when there are no LSO resolution.

Conditions:
- Create an APM policy with no LSO to resolve, or have an APM policy that has LSO resolved by previous sync

- Start a policy sync

Impact:
Sync results including the policy profiles won't be persisted so when the bigip restarts, all the sync data won't be lost.

Workaround:
Run tmsh command to save config:

tmsh save sys config

---

591476-9 : Stuck nitrox crypto queue can erroneously be reported

Component: Local Traffic Manager

Symptoms:
In some cases, a stuck crypto queue can be erroneously detected on Nitrox systems (Nitrox PX and Nitrox 3). When the tmm/crypto stats are examined, they show no queued requests. The message "Device error: crypto codec cn-crypto-0 queue is stuck." will appear in the ltm log file.

Conditions:
Nitrox based system performing SSL under heavy load.

Impact:
Device errors reported in logs and crypto HA action is taken, possibly resulting in failing over.

---

591343-5 : SSL::sessionid output is not consistent with the sessionid field of ServerHello message.

Component: Local Traffic Manager

Symptoms:
SSL::sessionid output is not consistent with the sessionid field of ServerHello message. This is mostly cosmetic, but if an iRule depends upon the outcome, the result can be unexpected.

Conditions:
This occurs when using an iRule to inspect the session ID on server-side SSL.

Impact:
The values do not match. SSL::sessionid outputs the wrong sessionid.

Workaround:
None.

---

591268-4 : VS hostname is not resolvable when DNS Relay proxy is installed and running under certain conditions

Component: Access Policy Manager

Symptoms:
VS hostname is not resolvable when DNS Relay proxy is installed and running under certain conditions, it depends on client machine configuration. Symptom: negative record in windows DNS cache, can be verified by running ipconfig /displaydns

Conditions:
Specific client machine configuration

Impact:
VS hostname is not resolvable:
- 'Refresh' of webtop causes unavailable webtop
- Recurring check report may fail due to DNS resolve issue

Workaround:
* Clean windows DNS cache: ipconfig /flushdns
or
* Disable DNS Relay proxy service

---

591261 : BIG-IP VPR-B4450N shows "unknown" SNMP Object ID

Component: TMOS

Symptoms:
The BIG-IP VPR-B4450N blade does not show the correct Object ID for SNMP. An SNMP query will return "unknown".

Conditions:
This issue may occur on VIPRION B4450N blades running affected versions of BIG-IP software.

Impact:
Some network management applications may complain and fail.

Workaround:
None.

---

591139 : TMM QAT segfault after zlib/QAT compression conflation.

Component: Local Traffic Manager

Symptoms:
TMM can segfault during prolonged mixture of software and hardware accelerated compression.

Conditions:
Continuous and prolonged mixture of software and hardware accelerated compression.

Impact:
TMM segfaults.

Workaround:
Disable hardware accelerated compression with:

    tmsh modify sys db compression.strategy value speed

---

591119 : OOM with session messaging may result in TMM crash

Component: TMOS

Symptoms:
Under out of memory conditions, session messaging may not initialize storage correctly, resulting in a later TMM crash.

Conditions:
Under out of memory conditions, memory allocation for session messaging fails, and storage is not initialized correctly.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
Reduce load on box in order to avoid OOM conditions.

---

591117-3 : APM ACL construction may cause TMM to core if TMM is out of memory

Component: Access Policy Manager

Symptoms:
During ACL construction, TMM send queries regarding assigned ACL information. If the reply message contains error message of out-of-memory, TMM was not handling this error message properly, and cause TMM to core.

Conditions:
BIG-IP is extremely loaded and out of memory.

Impact:
Traffic disrupted while tmm restarts.

---

591104-1 : ospfd cores due to an incorrect debug statement.

Component: TMOS

Symptoms:
ospfd cores due to an incorrect debug statement.

Conditions:
This occurs in NSSA configs when ASE OSPF debugging enabled in imish (for example, by running the command: debug ospf route ase). Affected configuration commands are (in imish):
debug ospf all.
debug ospf route.
debug ospf route ase.

Impact:
ospfd might crash, interrupting dynamic routing.

Workaround:
Do not enable debugging in ospf that includes 'route ase'.

---

590938-3 : The CMI rsync daemon may fail to start

Component: TMOS

Symptoms:
CMI starts an instance of the rsync daemon used for synchronizing file objects. If this daemon is not running, but left its PID file, then it will not restart.

Conditions:
The rsync daemon failed unexpectedly.

Impact:
Sync of file objects will fail with an error like this:

01070712:3: Caught configuration exception (0), Failed to sync files...

Workaround:
Delete the PID file, "/var/run/rsyncd-cmi.pid". Then look up the configsync-ip of the local device and run "rsync-cmi start 1.2.3.4", replacing 1.2.3.4 with the current device's configsync-ip.

---

590904-1 : New HA Pair created using serial cable failover only will remain Active/Active

Component: TMOS

Symptoms:
After creating a new sync-failover device group without network failover enabled, both devices remain Active.

Conditions:
Create a new sync-failover device-group without enabling network failover.

Impact:
Both device in the HA pair will be Active, which is unlikely to pass traffic successfully.

Workaround:
After adding the 2nd device to the sync-failover group, restart sod with "bigstart restart sod" on both devices.

---

590851-4 : "never log" IPs are still reported to AVR

Component: Application Security Manager

Symptoms:
IP addresses marked as "never log" are reported to AVR regardless of the flag

Conditions:
Always

Impact:
Extra, unwanted logging for IP addresses flagged as "never log"

Workaround:
N/A

---

590820-4 : Applications that use appendChild() or similar JavaScript functions to build UI might experience slow performance in Microsoft Internet Explorer browser.

Component: Access Policy Manager

Symptoms:
Applications that use appendChild() or similar JavaScript functions to build UI might experience slow performance in Microsoft Internet Explorer browser.

Conditions:
Intense usage of JavaScript methods such as: appendChild(), insertBefore(), and other, similar JavaScript methods, in a customer's web application code.

Impact:
Very low web application performance when using Microsoft Internet Explorer.

Workaround:
None.

---

590805-1 : Active Rules page displays a different time zone.

Component: Advanced Firewall Manager

Symptoms:
Active Rules page displays a different time zone.

Conditions:
When Active Rules page is loaded after the BIG-IP system timezone has changed.

Impact:
GUI shows incorrect timezone.

Workaround:
Run the following command after changing BIG-IP timezone: bigstart restart tomcat.

---

590122-2 : Standard TLS version rollback detection for TLSv1 or earlier might need to be relaxed to interoperate with clients that violate TLS specification.

Component: Local Traffic Manager

Symptoms:
Standard TLS rollback detection for TLSv1 or earlier clients might be too strict for clients that do not comply with RFC 2246 and later. These clients may require 'tls-rollback-bug' option set.

Conditions:
Standard behaviour of TLS clients is to use ClientHello.client_version in pre-master secret (PMS).

Some clients, incorrectly, might use negotiated version in PMS.

Impact:
Failed TLS handshake.

Workaround:
Configure the BIG-IP client SSL profile to include tls-rollback-bug, using a command similar to the following:

create /ltm profile client-ssl xxx ciphers DEFAULT options { tls-rollback-bug }.

---

590074-1 : Wrong value for TCP connections closed measure

Component: Application Visibility and Reporting

Symptoms:
In TCP analytics, the measure 'connections closed' displays the wrong value.

Conditions:
TMM_API debug enabled.

Impact:
Wrong value displayed.

Workaround:
Do not turn on debug printing.

---

589661 : PS2 power supply status incorrect after removal

Component: TMOS

Symptoms:
After removing the second power supply (PS2), running system_check indicates that the power supply status is still good:

system_check -d | grep power
Chassis power supply 1: status FAN=good; VINPUT=good; VOUTPUT=good; STATUS=good
Chassis power supply 2: status VINPUT=good; VOUTPUT=good; STATUS=not present

Conditions:
This occurs on 10000-series and 12000-series platforms when removing the PS2 power supply and running system_check

Impact:
Erroneous indication that the power supply is still good

---

589400-1 : With Nagle disabled, TCP does not send all of xfrags with size greater than MSS.

Component: Local Traffic Manager

Symptoms:
With Nagle disabled, TCP does not send all of xfrags with size greater than MSS.

Conditions:
Congestion window is small relative to message size; abc is enabled; also might manifest when serverside MTU is greater than clientside MTU.

Impact:
Additional connection latency.

Workaround:
Enabling proxy-mss on the serverside TCP profile significantly reduces incidence of this problem in observed cases.

If init-cwnd is low, raising it might also help.

Disabling abc can also reduce the problem, but might have other negative network implications.

---

589256-1 : DNSSEC NSEC3 records with different type bitmap for same name.

Component: Global Traffic Manager

Symptoms:
For a delegation from a secure zone to an insecure zone, BIG-IP returns different type bitmaps in the NSEC3 record depending on the query type. This causes BIND9's validator to reject the secure delegation to the insecure zone.

Conditions:
For insecure delegations, our DNSSEC implementation does not support the DS record. Those queries are forwarded to the backend, BIND if selected as fallback. Without ZSK/KSK for an insecure child zone, BIND responds SOA which we dynamically sign.

Impact:
DNS lookups may fail if BIND9's validator rejects the delegation.

Workaround:
None.

---

589223-1 : TMM crash and core dump when processing SSL protocol alert.

Component: Local Traffic Manager

Symptoms:
TMM crash and core dump when processing SSL protocol alert.

Conditions:
During SSL handshake, if the server sends protocol Alert to the BIG-IP system, TMM might crash.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
None.

---

589083-2 : TMSH and iControl REST: When logged in as a remote user who has the admin role, cannot save config because of permission errors.

Component: TMOS

Symptoms:
When a remotely authenticated user who has the admin role uses TMSH or iControl to save the configuration, the operation fails because of permission errors.

Using iControl, the system posts an error similar to the following: Error processing request for URI:http://localhost:8110/mgmt/tm/sys/config
{code:400,message: Can't create tmsh temp directory \"/config/.config.backup\" Permission denied, errorStack:[]}.

Using TMSH (e.g., running the command: tmsh save sys config), the system posts an error similar to the following:

Can't create tmsh temp directory "/config/.config.backup" Permission denied

Conditions:
This occurs when the following conditions are met:
-- Remote Authentication is configured.
-- User is logged in as a remote user who has the admin role.
-- Using TMSH or iControl for remotely authenticated user operations.

Impact:
Cannot save the configuration.

Workaround:
Use one of the following workarounds:
-- Use the GUI to save the configuration.
-- Have a locally authenticated user with admin role save the configuration.

---

588959-5 : Standby box may crash or behave abnormally

Component: Local Traffic Manager

Symptoms:
TMM crashes on the standby unit

Conditions:
It is not known the conditions that cause this, and has been seen very rarely.

Impact:
Tmm on the standby device crashes. Memory utilization before the crash can appear to be unusually high.

---

588888-3 : Empty URI rewriting is not done as required by browser.

Component: Access Policy Manager

Symptoms:
Empty URI must be rewritten at server side and client side rewriter in the same way: as empty URI (all browsers treat this type of URI in a specific way).

Conditions:
A tag with an empty 'src' or 'href' attribute.

Impact:
Web application malfunction, such as incorrect or unexpected behavior or error messages.

Workaround:
Use an application-specific iRule that modifies the empty URI.
-- For example, for JavaScript methods such as setAttribute(), an iRule should change this:
'F5_Invoke_setAttribute(o, "src", uri)'
to this:
'(uri=="")?o.setAttribute("src", uri):F5_Invoke_setAttribute(o, "src", uri)'.

-- As another example, for JavaScript methods such as write(str), writeln(str), innerHTML=str, outerHTML=str, and similar methods, if str contains <img src="" ... >, the iRule must remove the src attribute.

---

588879-2 : apmd crash under rare conditions with LDAP in BIGIP 12.0 and beyond

Component: Performance

Symptoms:
APM crashes during periods of high Active Directory lookups.

Conditions:
APM configured to use ldap. This was seen during stress testing of AD queries.

Impact:
APM crashes, clients unable to connect

---

588686-4 : High-speed logging to remote logging node stops sending logs after all logging nodes go down

Component: TMOS

Symptoms:
All logging to external logging nodes (such as BIG-IQ) suddenly stop.

Conditions:
This occurs when all of the configured logging nodes go down. Even when they are brought back up, tmm will not send logs to the remote servers.

Impact:
Remote logging stops and will only resume if tmm is restarted.

---

588626 : Analytics alerts: Metric "Maximum TPS" can only be used with Virtual Servers (but not with a Pool Member).

Component: Application Visibility and Reporting

Symptoms:
While configuring an alert for Maximum TPS on an Analytics profile, you get an error: Metric "Maximum TPS" can only be used with Virtual Servers (but not with a Pool Member)

Conditions:
This occurs when attempting to add an Analytics alert that triggers on Max TPS, and the alert is configured to run against a pool member or an application (the default is Virtual Server, not pool member or application).

Impact:
You cannot configure Max TPS alerts at the pool member level. The GUI appears to allow you to do this, but validation rules will prevent you from adding the alert.

The full list of alerts that cannot be configured at the pool or application level include all rules with the word Maximum in them:

- Maximum TPS
- Maximum Server Latency
- Maximum Page Load Time
- Maximum Request Throughput
- Maximum Response Throughput

---

588456-4 : PEM deletes existing PEM Subscriber Session after lease time expires (DHCP renewal not processed).

Component: Policy Enforcement Manager

Symptoms:
When the BigIp is in DHCP forwarding mode, if the giaddr field in the unicast DHCP renewal packet is set to DHCP relay agent IP address, the DHCP server sends the ACK to the renewal packet to the relay agent IP(giaddr) instead of ciaddr. Bigip DHCP module does not process the ACK and update the lease time, which causes PEM subscriber session to be aged out.

Conditions:
1)BigIP in forwarding mode
2)giaddr field in unicast DHCP renewal packet is set to
IP address of relay agent(Typically, it is set to 0 by DHCP client)

Impact:
PEM Subscriber Session will age out

---

588351-4 : IPv6 fragments are dropped when packet filtering is enabled.

Component: Local Traffic Manager

Symptoms:
IPv6 fragments are dropped when packet filtering is enabled.

Conditions:
Packet filtering is enabled and the system is processing IPv6 fragments.

Impact:
IPv6 fragments with a non-zero offset are lost.

Workaround:
Disable packet filtering.

---

588327 : Observe "err bcm56xxd' liked log from /var/log/ltm

Component: TMOS

Symptoms:
Some "err bcm56xxd" log is observed from /var/log/ltm that read "err bcm56xxd[10968]: 012c0012:3: bs_module_do_precond:No preconditioning provided for module on port 3/5.0"

Conditions:
This occurs when during system start.

Impact:
The error is benign and can be ignored.

---

588289-1 : GTM is Re-ordering pools when adding pool including order designation

Component: Global Traffic Manager

Symptoms:
GTM re-orders, including the "0" order when adding the pool with specific order designation.

Conditions:
This occurs when adding pools with a specified order.

Impact:
This changes the pool order unexpectedly which will affect Load balancing using global-availability.

---

588115-1 : TMM may crash with traffic to floating self-ip in range overlapping route via unreachable gw

Component: Local Traffic Manager

Symptoms:
As a result of a known issue TMM may crash in some specific scenarios if there is an overlapping and more specific route to the floating self-IP range configured on the unit.

Conditions:
- Unit configured with a floating self-IP and allow-service != none.
  - More specific route exists via GW to the self-IP.
  - Configured gateway for the overlapping route is unreachable.
  - Ingress traffic to the floating self-IP.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
Avoid the use of routes overlapping with configured floating self-IPs.

---

588089-3 : SSL resumed connections may fail during mirroring

Component: Local Traffic Manager

Symptoms:
SSL resumed connections when using SSL mirroring may fail during mirroring. This could result in SSL connections being unable to recover after failover.

Conditions:
Mirroring enabled on virtual with an associated client-ssl profile.

Impact:
SSL connections unable to recover after failover.

Workaround:
Disable session cache to prevent connections from resuming.

---

588049-1 : Improve detection of browser capabilities

Component: Application Security Manager

Symptoms:
Browsers can override native functions, and manipulate the PBD capabilities test.

Conditions:
1. Proactive Bot defense is on.
2. Attacker override its native functions.

Impact:
Malicious browsers can go undetected by PBD.

Workaround:
N/A

---

588028-1 : Clearing alerts from the LCD while the host is down will re-display the alerts on the LCD when the host comes up

Component: TMOS

Symptoms:
If the LCD visible alerts are cleared using the LCD menu while the Host is down, then when the host is brought back up the LCD will re-display any alerts that were generated after the host went down.

Alerts generated after a the Host is down are persistent and when the host comes up it will harvest those alerts and re-display them on the LCD. Alarm LED may be re-initialized to an unexpected state.

Conditions:
Alerts generated while the host is down and alerts are cleared using the LCD menu interface.

Impact:
Alerts are re-displayed on the LCD when the host comes back up. And the alarm LED may indicate an alarm that was thought previously cleared.

Workaround:
Do not clear the alerts from the LCD interface while the host is down.

---

587705-5 : Persist lookups fail for source_addr with match-across-virtuals when multiple entries exist with different pools.

Component: Local Traffic Manager

Symptoms:
Persist lookups fail for source_addr with match-across-virtual servers when multiple entries exist for the client, but pointing to different pools.

Conditions:
'Match_across_virtual' enabled. Multiple persistence entries for a client address exist, and some of these persistence entries point to poolmembers from different pools. Some of these poolmembers do not belong to any of the current virtual server's pools.

Impact:
Source address persistence fails for this client, even though there is a valid persistence entry that can be used.

Workaround:
None.

---

587668 : LCD Checkmark button does not always bring up clearing prompt on VIPRION blades.

Component: TMOS

Symptoms:
Pressing the LCD checkmark button does not always bring up clearing prompt on VIPRION blades.

Conditions:
Pressing the LCD's checkmark button to clear an alert on VIPRION blades.

Impact:
Cannot clear the alert using the LCD.

Workaround:
Press the checkmark button followed by the left or right arrow buttons.

---

587656-2 : gtm auto discovery problem with ehf for ID574052

Component: Global Traffic Manager

Symptoms:
After applying EHF9-685.88-ENG to CRCGTMCS101, many WideIPs such as CRT-LEGAL-SERVICE.gslb.global or OneEvent.gslb.global are unexpectedly status Checking instead of Available.

Conditions:
After applying EHF9-685.88-ENG

Impact:
Many WideIPs such as CRT-LEGAL-SERVICE.gslb.global or OneEvent.gslb.global are unexpectedly status Checking instead of Available.

Workaround:
Skip to the next Eng HF
v11.4.1-hf10/hotfix/HF10-690.10-ENG

---

587629-2 : IP exceptions may have issues with route domain

Component: Application Security Manager

Symptoms:
The IP exception feature doesn't work as expected.

Conditions:
There are many defined same IPs but with different route domain.
There were config changes to these IPs regarding their exception properties.

Impact:
An ignored IP is not ignored etc.

Workaround:
bigstart restart asm

---

587617-1 : While adding GTM server, failure to configure new IP on existing server leads to gtmd core

Component: Global Traffic Manager

Symptoms:
gtmd core with SIGSEGV in selfip_needs_xlation.

Conditions:
No GTM server object configured with existent selfip.

Impact:
gtmd cores. GTM unable to respond to DNS queries. DNS traffic disrupted while gtmd restarts.

Workaround:
Configure the GTM server object with an existent selfip. For more information, see SOL15671: The BIG-IP GTM system must use a local self IP address to define a server to represent the BIG-IP GTM system at https://support.f5.com/kb/en-us/solutions/public/15000/600/sol15671.html

---

587419-1 : TMM may restart when SAML SLO is performed after APM session is closed

Component: Access Policy Manager

Symptoms:
TMM may core when user performs SAML SLO on external to BIG-IP SP/IdP, and BIG-IP's APM session is no longer valid.

Conditions:
- User initiated SAML SLO on external SAML provider, and external provider redirect users to BIG-IP with SLO request.
- User does not have a valid session on BIG-IP when SLO request is received.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
Disable SAML SLO by removing SLO request/response URLs from configuration

---

587106-1 : Inbound connections are reset prematurely when zombie timeout is configured.

Component: Carrier-Grade NAT

Symptoms:
When an LSN pool is configured in PBA mode with a non-zero zombie timeout, inbound connections are killed and reset prematurely, often in a matter of seconds.

Conditions:
PBA mode configured on the pool, and zombie_timeout set to a non-zero value.

Impact:
Inbound connections to PBA pools with a zombie timeout configured may not be usable.

Workaround:
None.

---

587016-2 : SIP monitor in TLS mode marks pool member down after positive response.

Component: Local Traffic Manager

Symptoms:
SIP monitor in TLS mode marks pool member down after positive response. The SIP monitor in TLS mode is constantly marked down.

Conditions:
SIP monitor configured in TLS mode.
Server does not send close_notify alert in response to the monitor's close_notify request.

Impact:
Unable to monitor the status of the TLS SIP server.

Workaround:
None.

---

586738-4 : The tmm might crash with a segfault.

Component: Local Traffic Manager

Symptoms:
The tmm might crash with a segfault.

Conditions:
Using IPsec with hardware encryption.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
None.

---

586718-1 : Session variable substitutions are logged

Component: Access Policy Manager

Symptoms:
With the log level set to debug, session variable substitutions are logged, including the encrypted password if you are substituting the password variable. You may see the following logs: debug apmd[3531]: 01490000:7: Util.cpp func: "ScanReplaceSessionVar()" line: 608 Msg: data: '%{session.logon.last.password}' start_pos: 0, count: 30 on 'session.logon.last.password' with the encrypted password logged

Conditions:
APM Access Policy log level set to debug, and session variable substitution is performed.

Impact:
Session variable substitution should not be logged, even if it is secure.

Workaround:
Set log level to informational or notice for normal operations. Logging at debug level is not recommended unless absolutely needed for specific troubleshooting as it adversely affects system performance.

---

586660-1 : HTTP/ramcache2 and RAM Cache are not compatible.

Component: Local Traffic Manager

Symptoms:
A virtual server fails some requests where the response is served from cache.

Conditions:
If a virtual server has either SPDY or HTTP/2 enabled, it might fail requests that would normally be served from RAM cache.

Also, a normal HTTP virtual server that has an iRule attached that responds to the HTTP_RESPONSE_RELEASE event might give errors to Tcl commands that attempt to access the response headers.

Certain filters and plugins that required access to the response headers might also fail in unexpected ways.

Impact:
Errors in certain TCL commands or failed requests.

Workaround:
None.

---

586621-5 : SQL monitors 'count' config value does not work as expected.

Component: Local Traffic Manager

Symptoms:
SQL monitors 'count' config value does not work as expected.

Conditions:
SQL monitor in use with the 'count' config value specified. The 'count' value is intended to record the number of times the connection to the back-end database is re-used before it is disconnected. However, the value is not correctly recording the number in this release.

Impact:
SQL monitor might use a 'count' value that is incorrect.

Workaround:
Add 101 to the desired value. For example, if the desired count is '5', use '106' instead.

---

586006-1 : Failed to retrieve CRLDP list from client certificate if DirName type is present

Component: Access Policy Manager

Symptoms:
Client certification revocation check will fail.

Conditions:
Two conditions will trigger this problem:
1. A CRLDP agent is configured in the access policy without server hostname and port, which is needed for DirName type processing. AND
2. At least one DirName type CRLDP is present in the client certification and it is the first in the list.

Impact:
Users may fail access policy evaluation when client certification is used.

Workaround:
Configure an LDAP server for the CRLDP object. It need not return a valid CRL.

---

585833-1 : Qkview will abort if /shared partition has less than 2GB free space

Component: TMOS

Symptoms:
In order to inform the user that the /shared partition needed to be cleaned up, qkview was checking for at least 2GB of free space. This isn't a hard requirement to build a qkview which potentially could use much less than the 2GB limit. Additionally, some F5 VE systems are shipped with less than 2GB in /shared, thus qkviews cannot be produced.

Conditions:
The /shared partition is smaller than 2GB or has less than 2GB free.

Impact:
User is unable to create a qkview despite having enough room to build one.

Workaround:
Increase the size of /shared so that it has at least 2GB of free space. See https://support.f5.com/kb/en-us/solutions/public/14000/900/sol14952.html for detailed instructions on resizing volumes.

---

585813-2 : SIP monitor with TLS mode fails to find cert and key files.

Component: Local Traffic Manager

Symptoms:
SIP monitor with TLS enabled fails to find cert and key in filestore.

Conditions:
SIP monitor with TLS mode.

Impact:
Cannot create SIP monitor with TLS mode enabled and have the pool correctly checked.

Workaround:
Create an external monitor script to invoke the SIP monitor. Supply the correct arguments to the script.

---

585654 : Enhanced implementation of AES in Common Criteria mode

Component: Local Traffic Manager

Symptoms:
Common Criteria (CC) mode disallows the use of dedicated BIG-IP accelerator. It can be observed that performance of the BIG-IP in CC mode may not be as fast as benchmarks for some implementations AES on CPU.

Conditions:
Common Criteria (CC) mode is enabled.

Impact:
Lower performance with CBC-based AES ciphersuites.

---

585562-3 : VMware View HTML5 client shipped with Horizon 7 does not work through BIG-IP APM in Chrome/Safari

Component: Access Policy Manager

Symptoms:
When using Google Chrome or Safari (WebKit-based) browser to launch VMware View HTML5 client for Horizon 7 from APM webtop, this attempt fails with a blank screen in place of remote desktop session.

Conditions:
-- BIG-IP APM configured as PCoIP proxy for Horizon 7.
-- APM webtop in which the HTML5 client is used to launch a remote desktop.

Impact:
Cannot use HTML5 client. Only native client (Horizon View client) is available.

Workaround:
when HTTP_REQUEST {
   if { [HTTP::header "Origin"] ne "" } {
        HTTP::header remove "Origin"
    }
     if { [ HTTP::method ] == "POST" && [ HTTP::uri ] == "/broker/xml" } {
        set BROKER_REQUEST 1
        HTTP::collect [HTTP::header Content-Length]
    }
}

when HTTP_REQUEST_DATA {
    if { [ info exists BROKER_REQUEST ] && [ regexp {<have-authentication-types[ \t\r\n]*>[ \t\r\n]*<name[ \t\r\n]*>[ \t\r\n]*saml[ \t\r\n]*</name>[ \t\r\n]*</have-authentication-types>} [HTTP::payload] ] } {
        HTTP::respond 200 content {<?xml version="1.0" encoding="UTF-8"?><broker version="11.0"><set-locale><result>ok</result></set-locale><configuration><result>ok</result><broker-guid>1</broker-guid><authentication><screen><name>saml</name><params></params></screen></authentication></configuration></broker>} Content-Type text/xml
    }
}

when HTTP_RESPONSE {
    if { ! [ IP::addr [ IP::remote_addr ] equals 127.0.0.0/8 ] } { return }
    set BROKER_RESPONSE 1
    set content_length 0
    if {[HTTP::header "Content-Length"] ne "" && [HTTP::header "Content-Length"] <= 1048576}{
        set content_length [HTTP::header "Content-Length"]
    } else {
        set content_length 1048576
    }
    # Check if $content_length is not set to 0
    if { $content_length > 0} {
      HTTP::collect $content_length
    }
}

when HTTP_RESPONSE_DATA {
    if { ! [ info exists BROKER_REQUEST ] || ! [ info exists BROKER_RESPONSE ] } { return }
    regsub "<broker version=\"9.0\">" [HTTP::payload] "<broker version=\"11.0\">" payload
    HTTP::payload replace 0 [HTTP::payload length] $payload
    HTTP::release
}

---

585485-5 : inter-ability with "delete IPSEC-SA" between AZURE, ASA and BIGIP

Component: TMOS

Symptoms:
Some IKEv1 IPsec vendor implementations (for example Cisco ASA) send a delete SPI message for an IPsec-SA and expect that the sibling IPsec-SA (the SPI in the other direction) will also be deleted by the peer.

BIG-IP sends and expect messages with two SPI's inside.

Conditions:
An IPsec tunnel between a BIG-IP system and some other vendor may experience this. Azure and Cisco ASA are two such vendors.

Impact:
An IPsec tunnel goes down and in some situations may not renegotiate while the BIG-IP believes that the outgoing SPI is still active. The tunnel will stay down until the lifetime of the outbound SA expires.

Workaround:
Delete the outbound SA from the BIG-IP using the tmsh command by specifying the related SA:

(tmos)# delete net ipsec ipsec-sa ?
Properties:
  "{" Optional delimiter
  dst-addr Specifies the destination address of the security associations
  spi Specifies the SPI of the security associations
  src-addr Specifies the source address of the security associations
  traffic-selector Specifies the name of the traffic selector

---

585412-4 : SMTPS virtual server with activation-mode allow will RST non-TLS connections with Email bodies with very long lines

Component: Local Traffic Manager

Symptoms:
Connections to a virtual server that uses an SMTPS profile may be reset with a reset cause of 'Out of memory.'

Conditions:
This might occur under the following conditions:
-- A virtual server that uses an SMTPS profile with activation-mode set to allow.
-- A client connection which does not use TLS that sends a DATA section with a text line that is longer than approximately 8192 characters.

8192 characters is an approximation for the maximum line length. The actual problem length can be affected by the MSS value and the particular way that the TCP traffic is segmented.

Impact:
The TCP connection is reset with a reset-cause of Out of memory' and the email will not be delivered.

Workaround:
None.

---

585352-2 : bruteForce record selfLink gets corrupted by change to brute force settings in GUI

Component: Application Security Manager

Symptoms:
If you update the brute force settings in the GUI, rest_uuid is updated as well, which breaks the self-link in the iControl REST API

Conditions:
Update brute force settings in GUI

Impact:
Unique record part updated

Workaround:
Update brute force settings using the REST API

---

585332-3 : Virtual Edition network settings aren't pinned correctly on startup★

Component: TMOS

Symptoms:
You notice unusually high CPU utilization on Virtual Edition after upgrading to 12.1.0 when compared to a previous release (such as version 11.6.1).

Conditions:
This occurs after upgrading to 12.1.0. In Virtual Edition version 12.1.0, there is an issue where network interface IRQs don't get pinned correctly at startup.

Impact:
Since CPU0 is unusually high compared to previous releases, upgrading could put Virtual Edition into an overloaded state.

Workaround:
bigstart restart tmm will start the network interfaces and pin them to the right IRQ.

---

585120-1 : Memory leak in bd under rare scenario

Component: Application Security Manager

Symptoms:
Under high traffic, bd may leak memory and cause an ASM restart under certain rare conditions

Conditions:
ASM enabled and under high traffic

Impact:
Causes traffic abort while restart is happening. High swap and memory.

Workaround:
None.

---

585054-3 : BIG-IP imports delay violations incorrectly, causing wrong policy enforcement

Component: Application Security Manager

Symptoms:
When you import an XML file that contain references to violations in the delay blocking session tracking configuration, extra violations get added to the list.

Conditions:
This occurs when importing delay-type violations in ASM

Impact:
A very large subset of the violations is added to the policy

---

584948-1 : Safenet HSM integration failing after it completes.

Component: Local Traffic Manager

Symptoms:
tmm cannot load the Safenet library, and the following log entry is found in /var/log/auditd/audit.log:

denied { read } for pid=4936 comm="tmm" name="libCryptoki2_64.so" dev=dm-1 ino=1441838 scontext=system_u:system_r:tmm_t:s0 tcontext=system_u:object_r:default_t:s0 tclass=lnk_file.

Conditions:
This occurs when there is at least one symlink in the shared/safenet/lunasa/lib/ directory.

The safenet-sync.sh script (used to replicate a functioning Safenet HSM installation to a newly-inserted secondary blade) and csyncd conspire to improperly install/fix permissions on the secondary blade if there are symlinks, which results in the Safenet HSM integration failing after it completes, until the user takes appropriate actions.

Impact:
Upon failover to secondary blade, the BIG-IP system will be unable to communicate with the configured netHSM.

Workaround:
Use chcon and chcon -h to fix any permissions issues. The --reference option can be used on any properly permissioned file in the same directory to do this quickly.

For example: chcon -h --reference=libcklog2.so libCryptoki2_64.so.

---

584926-1 : Accelerated compression segfault when devices are all in error state.

Component: Local Traffic Manager

Symptoms:
TMM segfaults. Kernel log contains "Uncorrectable Error" and "icp_qa_al err" messages.

Conditions:
All physical or virtual devices concurrently enter error state.

Impact:
Tmm segfaults and restarts. May require a reboot.

Workaround:
Disable QAT compression using tmsh:

tmsh modify sys db compression.strategy value softwareonly

---

584921-1 : Inbound connections fail to keep port block alive

Component: Carrier-Grade NAT

Symptoms:
Connections that use a PBA port block should keep the port block from expiring. However inbound connections to a client using a port block will fail to refresh the block, causing the block to expire pre-maturely. An inbound connection can remain active while the port block has been deleted.

Conditions:
An inbound connection with no outbound connections fails to keep a port block alive, resulting in an inbound connection to a client without a corresponding port block.

Impact:
When reverse mapping an inbound connection to a subscriber (e.g. trying to find who was using an ip address/port at a particular time), customers may find no corresponding port block, or a port block belonging to another client when the reverse map is performed at a time when the connection is closed.

Workaround:
When performing a reverse map, customers should use the start time of a connection to determine which port block was in use.

---

584762 : After restarting bcm56xxd, 5.x interface might show as down.

Component: TMOS

Symptoms:
During internal testing, a very rare condition manifests in which the 5.x interfaces are down after a bcm56xxd restart. Signature in the log file is 01010031:4: Device warning: HSBe2 XLMAC initial recovery failed after 11 retries.

Conditions:
This has been seen very rarely and its causes are unknown.

Impact:
The 5.x interfaces connect the blades to the backplane so the blades cannot pass messages over the backplane.

Workaround:
The command bigstart restart bcm56xxd restarts all interfaces and should bring the 5.x interfaces back up.

---

584623-2 : Response to -list iRules command gets truncated when dealing with MX type wide IP

Component: Global Traffic Manager

Symptoms:
GTM iRule "members" with the "-list" flag will truncate MX-type WideIP pool members when printed out to a log.

Conditions:
Use the GTM iRule "members" with the "-list" flag to print out the members of an MX WideIP pool during a DNS event.

Impact:
WideIP MX-type pool members are truncated in the log.

Workaround:
None

---

584583-7 : Timeout error when attempting to retrieve large dataset.

Component: TMOS

Symptoms:
The Rest API can timeout when attempting to retrieve large dataset, such as a large GTM pool list. The error signature when using the Rest API looks like "errorStack":["java.util.concurrent.TimeoutException: remoteSender:127.0.0.1, uri:http://localhost:8110/tm/gtm/pool, method:GET "

Conditions:
Configuration containing a large number of GTM pools and pool members (thousands).

Impact:
If using the Rest API to retrieve the pool list, you may receive timeout errors.

---

584582-2 : JavaScript: 'baseURI' property may be handled incorrectly

Component: Access Policy Manager

Symptoms:
If generic JavaScript object has 'baseURI' property, it may be handled incorrectly via Portal Access: web application may get 'undefined' value for this property.

Conditions:
User-defined JavaScript object with 'baseURI' property.

Impact:
Web application may work incorrectly.

Workaround:
iRule can be used to remove F5_Deflate_baseURI() calls from rewritten JavaScript code.

---

584414 : Deleting persistence-records via tmsh may result in persistence being created to different nodes

Component: Local Traffic Manager

Symptoms:
After deleting the persistence records, a connection may use persistent records to two different nodes breaking persistence.

Conditions:
Deleting persistence records when there is high concurrency for particular persistence records (e.g., load testing).

Impact:
Client fails to persist to a particular node.

Workaround:
Avoid removing persistence records from tmsh or use iRules to remove persistence records.

---

584310-1 : TCP:Collect ignores the 'skip' parameter when used in serverside events

Component: Local Traffic Manager

Symptoms:
When TCP::Collect is used with 'skip' and 'length' arguments in SERVER_CONNECTED, the "skip' argument does not take effect and is ignored. The Collect works, but collects only the length bytes from start.

Conditions:
TCP:Collect on server side events like SERVER_CONNECTED used with the 'skip' parameter. This is an intermittent issue that have happen only with IIS server.

Impact:
TCP:Collect collects bytes without taking into account the skip, so the bytes collected are not the correct ones.

Workaround:
None.

---

584103-2 : FPS periodic updates (cron) write errors to log

Component: Application Security Manager

Symptoms:
FPS periodic updates (run via cron) write errors to log when FPS is not provisioned.

Conditions:
FPS is not provisioned.

Impact:
Errors appears in FPS logs.

---

584029-4 : Fragmented packets may cause tmm to core under heavy load

Component: Local Traffic Manager

Symptoms:
tmm core due to assertion

Conditions:
tmm offloads a fragmented packet via ffwd'ing

Impact:
Traffic disrupted while tmm restarts.

---

583957-6 : The TMM may hang handling pipelined HTTP requests with certain iRule commands.

Component: Local Traffic Manager

Symptoms:
Rarely, the TMM may hang during a HTTP::respond or HTTP::redirect iRule command if it is part of a pipelined HTTP request.

Conditions:
A HTTP::respond or HTTP::redirect iRule is used.
The iRule command is in an event triggered on the client-side.
A pipelined HTTP request is being handled.

Impact:
The TMM will be restarted by SOD.

---

583936-5 : Removing ECMP route from BGP does not clear route from NSM

Component: TMOS

Symptoms:
When configured to install multiple routes into the routing table, ZebOS does not withdraw BGP routes when a neighbor is shut down and it has more than two routes already installed for the same route prefix.

Conditions:
ECMP routing must be enabled and in-use.

Impact:
ECMP routes are not properly removed from the main routing table.

---

583754-7 : When TMM is down, executing 'show ltm persist persist-records' results in a blank error message.

Component: TMOS

Symptoms:
Executing 'show ltm persist persist-records' results in a blank error message.

Conditions:
TMM must be down.

Impact:
Non-obvious / unhelpful error message is generated, leading to customer confusion.

Workaround:
N/A

---

583686-2 : High ASCII meta-characters can be disallowed on UTF-8 policy via XML import

Component: Application Security Manager

Symptoms:
After importing an XML policy, you cannot view or edit policies containing high ASCII characters.

Conditions:
This occurs when importing XML policies containing high-ASCII meta-characters but high-ASCII is not allowed in a UTF-8 policy.

Impact:
Unable to view or edit the policy, and Illegal meta character in value violation is triggered

---

583516-2 : tmm ASSERT's "valid node" on Active, after timer fire..

Component: TMOS

Symptoms:
TMM crashes on ASSERT's "valid node".

Conditions:
The cause is unknown, and this happens rarely.

Impact:
tmm crash

Workaround:
no

---

583475-1 : The BIG-IP may core while recompiling LTM policies

Component: TMOS

Symptoms:
In some rare and still unknown situations the BIG-IP Mcpd process may core when creating or modifying LTM policies. While the root cause of the crash is not fully understood at this time, one of the symptoms points to a nonexistent or invalid LTM policy.

Conditions:
Creating or modifying LTM policies.

Impact:
The BIG-IP control plane services restart thus affecting both, control plane and data plane functionality.

Workaround:
A possible workaround could be to attempt re-creating the LTM policy producing the crash under a different name. Avoid any special characters (or spaces) in the name of the LTM policy.

---

583355-1 : The TMM may crash when changing profiles associated with plugins

Component: Local Traffic Manager

Symptoms:
The TMM may crash when changing profiles associated with plugins.

Conditions:
The must be a profile associated with a plugin already on a virtual server and traffic must be running. When the profile is removed or swapped for another, the crash may occur.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
A safe way to definitely avoid a crash is to stop the plugin before making changes to its profile.

---

583285-4 : BIG-IP logs INVALID-SPI messages but does not remove the associated SAs.

Component: TMOS

Symptoms:
The BIG-IP system logs INVALID-SPI messages but does not remove the associated Security Associations (SAs) corresponding to the message. This is the second part of a fix provided for this issue. See fixes for bug 569236 for the first part.

Conditions:
This can occur if an IPsec peer deletes a phase2 (IPsec) SA and does not send a 'notify delete' message to the other peer. The INVALID-SPI message is most likely to be seen when the peer deletes an SA before the SA's agreed lifetime.

Impact:
If the BIG-IP is always the Initiator, the Responder will not initiate a new tunnel if the Responder only handles responses to the BIG-IP clients' traffic. The BIG-IP system continues to use the IPsec SA it believes to be still up. When an SA expires prematurely, some IPsec peers will reject an inbound SPI packet with an ISAKMP INVALID-SPI notify message. If the INVALID-SPI message does not cause new SAs to be created, there will be a tunnel outage until the SA lifetime expires on the defunct SA held on the BIG-IP system.

Workaround:
Manually remove the invalid SA on the BIG-IP system.

---

583177 : LCD text truncated by heartbeat icon on VIPRION

Component: TMOS

Symptoms:
while looking at informational text on the first line of the LCD display on a VIPRION, the end of the string is truncated by a heartbeat icon.

Conditions:
This occurs on platforms that display a heartbeat icon on the LCD display.

Impact:
The heartbeat icon is displayed over the last character of the string, this is cosmetic.

---

583113-1 : NTLM Auth cannot be disabled in HTTP_PROXY_REQUEST event

Component: Access Policy Manager

Symptoms:
The following iRule did not work as expected when the access profile had an NTLM auth. The client still received a 407 prompt to enter NTLM credentials.

when HTTP_PROXY_REQUEST {
    if { [HTTP::uri] contains "disable" } {
        ACCESS::disable
    }
}

Conditions:
Access profile of an SWG type, with an NTLM auth profile attached.

Impact:
It was impossible to disable NTLM auth from the HTTP_PROXY_REQUEST event.

Workaround:
The following iRule works from HTTP_REQUEST

when HTTP_REQUEST {
    if { [HTTP::uri] contains "disable" } {
        ACCESS::disable
        ECA::disable
    }
}

---

583101-2 : ADAPT::result bypass after continue causes bad state transition

Component: Service Provider

Symptoms:
Tcl command 'ADAPT::result bypass' does not work in ADAPT_REQUEST_RESULT when the ICAP server has previously returned 100-continue.

Conditions:
iRules exist on a VS with an adapt profile, containing:

when ADAPT_REQUEST_RESULT {
    ADAPT::result bypass
}

or

when ADAPT_RESPONSE_RESULT {
    ADAPT::result bypass
}

Impact:
ADAPT logs an unexpected state transition and resets the connection, making it impossible for iRules to replace the ICAP response.

Workaround:
Avoid 'ADAPT::result bypass' commands in cases where there is no preview (either configured for no preview, or after the preview has been dropped due to a 100-continue or 200-ok ICAP response).

---

583010-4 : Sending a SIP invite with "tel" URI fails with a reset

Component: Service Provider

Symptoms:
Using a "INVITE tel:" URI results in SIP error (Illegal value).

Conditions:
Sending a SIP "INVITE tel:" to BIG-IP does not work.

Impact:
"INVITE tel:" messages are not accepted by BIG-IP.

Workaround:
None

---

582752-3 : Macrocall could be topologically not connected with the rest of policy.

Component: Access Policy Manager

Symptoms:
It is possible to create macrocall access policy item that:

1. Belongs to policy items list.
2. Correctly connected to ending.
3. Have no incoming rules (i.e., no items pointing at it).

Conditions:
1. Create access policy with macrocall item in one of the branches.
2. Remove the item which refers to this macrocall item from AP

As a result, macrocall item remains.

Impact:
VPE fails to render this access policy.

Workaround:
Delete macrocall access policy item manually using tmsh commands.

---

582683-2 : xpath parser doesn't reset a namespace hash value between each and every scan

Component: Application Security Manager

Symptoms:
After a while the iRule event stops firing until the cbrd daemon is restarted.

Conditions:
The customer has a virtual server configured with an XML, along with an iRule that triggers on the XML_CONTENT_BASED_ROUTING event.

Impact:
XML content based routing does not work dependably.

Workaround:
N/A

---

582606-1 : IPv6 downloads stall when NA IPv4&IPv6 is used.

Component: Access Policy Manager

Symptoms:
When downloading large files through network access, downloads can appear to stall for a period of time and then resume.

Conditions:
This occurs when Network Access is configured with an IPv4&IPv6 resource

Impact:
Downloads occasionally stall with download speed going to 0, and then they resume.

Workaround:
It is possible that disabling large receive offload will work as a mitigation. To do so, run the following command:
tmsh modify sys db tm.tcplargereceiveoffload value disable.

---

582526-3 : Unable to display and edit huge policies (more than 4000 elements)

Component: Access Policy Manager

Symptoms:
It takes a very long time or is not possible to display huge policies (more than 4000 elements). VPE returns server timeout error or simple halts.

Conditions:
Huge Access Policy, for example, containing 4000 or more elements.

Impact:
Unable to edit policy because VPE times out.

Workaround:
None.

---

582440-4 : Linux client does not restore route to the default GW on Ubuntu 15.10

Component: Access Policy Manager

Symptoms:
Default route may be deleted after network access connection is deleted on Linux Ubuntu 15.10 distribution.

Conditions:
Ubuntu 15.0, network access tunnel connect and then disconnect

Impact:
User will not be able to reach internet after disconnecting from network access.

Workaround:
If Wifi is in use then turn off and on again.
If Ethernet is used then unplugging and plugging cable again should solve the problem.

---

582331-1 : Maximum connections is not accurate when TMM load is uneven

Component: Local Traffic Manager

Symptoms:
Maximum connections is not accurate when TMM load is unevenly distributed. Maximum connection statistics report the sum of maximum connections per TMM, not the maximum connections per virtual server.

Conditions:
This occurs when the load disaggregated to available TMMs is uneven.

Impact:
This causes the various TMMs to measure their individual maximum connections at significantly different times, resulting in lower-than-expected maximum connections.

Workaround:
Ensure the configuration matches traffic patterns, so the load of connections is evenly distributed across all TMMs.

---

582234-5 : When using a config merge load to disable and then later re-enable a monitored pool member, monitor checking will not start up again.

Component: Local Traffic Manager

Symptoms:
When using a config merge load to disable and then later re-enable a monitored pool member, monitor checking will not start up again.

Conditions:
A monitored pool member is initially disabled, and a config merge re-enables it

Impact:
Monitoring does not resume when pool member is re-enabled via config merge.

Workaround:
You can re-enable monitoring by running the following commands:

tmsh save sys config
tmsh load sys config

---

582207-7 : MSS may exceed MTU when using HW syncookies

Component: Local Traffic Manager

Symptoms:
Packets larger than the interface's MTU can be transmitted.

Conditions:
A SYN packet is received with an MSS that exceeds the interface's MTU.

Impact:
Potential packet loss.

Workaround:
Disable HW syncookie mode.

---

582084-1 : BWC policy in device sync groups.

Component: TMOS

Symptoms:
When there is a BWC policy created in global sync group and also a local one, then the configuration displays an error.

Conditions:
If BWC policy is created both in global sync and local.

Impact:
Configuration error, BWC policies will not be synced due to errors.

Workaround:
Ensure that BWC policy is in global sync only.

---

581991-1 : Logging filter for remote loggers doesn't work correctly with more than one logging profile

Component: Application Security Manager

Symptoms:
A logging message arrived at a remote logger while the remote logger's filter have a criteria that doesn't match.

Conditions:
More than one logging profile is attached to a virtual server, the logging profiles have different filters conditions.

Impact:
A non related messages will be presented at the remote logger

---

581945-1 : Device-group "datasync-global-dg" becomes out-of-sync every hour

Component: TMOS

Symptoms:
The datasync-global-dg device-group may become out-of-sync unexpectedly without any user changes.
When this happens, the user can manually sync the device-group, but after about an hour the device-group becomes out-of-sync again.

Conditions:
1. This happens only in certain timezones, depending on the timezone configured on the BIG-IP. We have only seen this happening in the Europe/London timezone.
2. The problem will start happening about 3 days after the first installation of an ASM Signature Update (ASU) or FPS Engine/Signature Update.

Impact:
GUI/shell shows config-sync "possible change conflict" or "changes pending" in regards to the datasync-global-dg device-group.

Workaround:
None

---

581851-1 : mcpd, interleaving of messages / folder contexts from primary to secondary blade

Component: TMOS

Symptoms:
MCPD on secondary blades restart with Configuration error.

Conditions:
Clustered system (VIPRION or vCMP guest). The issue occurs when the system interleaves commands from different contexts. For example, this might occur when one system requests continual persistence records resets, and another requests continual TCP statistics resets.

Impact:
Secondary blades restart services, resulting in performance degradation or failover.

Workaround:
Issue commands as part of a transaction.

---

581824-2 : "Instance not found" error when viewing the properties of GSLB monitors gateway_icmp and bigip_link.

Component: Global Traffic Manager (DNS)

Symptoms:
When you attempt to view the monitors' properties, the page throws an "Instance not found" error.

Conditions:
Viewing the GSLB Monitors tcp_half_open, gateway_icmp and bigip_link's properties page.

Impact:
You cannot view some of their monitors' properties.

---

581811 : The blade alarm LED may not reflect the warning that non F5 optics is used.

Component: TMOS

Symptoms:
When non F5 optics is used for front switch ports, the LCD and /var/log/ltm will display some warning message. But the alarm LED may not reflect that.

Conditions:
This is caused by a race condition. When a blade comes up and decides its role as a primary blade or a secondary blade, it will clear the alarm LED. So the last blade coming up may have its alarm LED in the right state, but the blades that came up earlier may have their alarm LEDs cleared.

Impact:
The alarm LED may not reflect the warning.

Workaround:
None.

---

581746-1 : MPTCP traffic handling may cause a BIG-IP outage

Component: Local Traffic Manager

Symptoms:
Occasional BIG-IP outages may occur when MPTCP traffic is being handled by a Virtual server.

Conditions:
MPTCP has been enabled on a TCP profile on a Virtual Server.

Impact:
A System outage may occur.

Workaround:
Do not enable MPTCP on any TCP profile

---

580893-5 : Support for Single FQDN usage with Citrix Storefront Integration mode

Component: Access Policy Manager

Symptoms:
Adding a new login account onto citrix receiver could enumerate the applications and desktop. But after logging off and trying to reconnect to the same account will start failing.

Conditions:
Citrix storefront integration mode with APM and using same FQDN for both accessing Storefront as well as APM virtual

Impact:
Clients are unable to connect.

Workaround:
No workaround other than using different FQDNs

---

580697 : VIPRION 2200 platform might not pass traffic properly after FPGA firmware switch.

Component: TMOS

Symptoms:
After a FPGA firmware switch on VIPRION 2200 platforms without a system reboot, some internal higig ports might not operate properly.

Conditions:
Using tmsh or GUI to switch FPGA firmware on VIPRION 2200 platforms.

Impact:
This might result in the system not handling traffic properly.

Workaround:
After any FPGA firmware switch, reboot the entire chassis by running the following command: clsh reboot.

---

580602-1 : Configuration containing LTM nodes with IPv6 link-local addresses fail to load.

Component: TMOS

Symptoms:
As a result of a known issue a configuration containing LTM nodes with IPv6 link-local addresses may fail to load.

Conditions:
Attempt to load a configuration containing a LTM node with a IPv6 link-local address.

Impact:
Configuration fails to load.

Workaround:
Use IPv6 global addresses instead.

---

580303-7 : When going from active to offline, tmm might send a GARP for a floating address.

Component: Local Traffic Manager

Symptoms:
When moving from active to offline, tmm might send one final GARP for a floating address from the device that is moving offline.

Conditions:
Using high availability, and switching a device from active to offline.

Impact:
The GARP from the offline device can arrive on upstream devices after the GARP from the newly active device, which might poison the address cache of the upstream device. The result is that failover takes longer, since the upstream devices must rediscover the active device.

Workaround:
Use MAC masquerading along with the floating address; the system sends a GARP for the MAC masqueraded address, which prevents the issue.

---

579926-1 : HTTP starts dropping traffic for a half-closed connection when in passthrough mode

Component: Local Traffic Manager

Symptoms:
HTTP starts dropping traffic for a half-closed connection when in passthrough mode.

Conditions:
HTTP is in passthrough mode. Traffic is flowing for a half-closed connection.

Impact:
Incomplete data transfer to end-point, when the connection is half-closed and HTTP is in passthrough mode.

Workaround:
No workaround.

---

579843-1 : tmrouted may not re-announce routes after a specific succession of failover states

Component: Local Traffic Manager

Symptoms:
tmrouted does not re-announce RHI routes in a specific transition of failover states within a HA pair using dynamic routing and HA pair.

Conditions:
- Active/Standby HA pair set up
 - Both units configured with a dynamic routing protocol and Route Health Injection enabled on one or more Virtual-Addresses.
 - Active unit has the following succession of failover states:
   Active->Offline->Online->Standby->Active

Impact:
Tmrouted may not announce the Virtual addresses when coming back to Active state after the mention succession.

Workaround:
A failover to Standby and back to Active works around the issue.
Restarting tmrouted is also an alternative option.

---

579529 : Stats file descriptors kept open in spawned child processes

Component: TMOS

Symptoms:
No known user visible impact.

Conditions:
This occurs in all multi-blade platforms where clusterd is running.

Impact:
No known user visible impact.

Workaround:
None.

---

579371-4 : BigIP may generate ARPs after transition to standby

Component: Local Traffic Manager

Symptoms:
tmm generates unexpected ARPs after entering standby

Conditions:
HA pair with a vlangroup with bridge-in-standby disabled
ARP is received just before transition to standby

Impact:
Unexpected ARP requests that may result in packet loops

---

579252-3 : Traffic can be directed to a less specific virtual during virtual modification

Component: Local Traffic Manager

Symptoms:
Traffic can be directed to an less specific virtual during virtual modification. It could also be dropped if there is no less specific virtual server.

Conditions:
net self external-ipv4 {
    address 10.124.0.19/16
    traffic-group traffic-group-local-only
    vlan external
  }
  net self internal-ipv4 {
    address 10.125.0.19/16
    traffic-group traffic-group-local-only
    vlan internal
  }

  ltm pool redirect-echo {
    members { 10.125.0.17:7 }
  }
  ltm virtual fw {
    description "less-specific virtual"
    destination 10.125.0.0:any
    ip-forward
    mask 255.255.255.0
    profiles { fastL4 }
    translate-address disabled
    translate-port disabled
    vlans-disabled
  }
  ltm virtual redirect-echo {
    description "enable/disable this one"
    destination 10.125.0.20:echo
    ip-protocol udp
    mask 255.255.255.255
    pool redirect-echo
    profiles { udp }
    vlans { external }
    vlans-enabled
  }

Impact:
Traffic can be directed to less specific virtual server

Workaround:
No known workaround at this time other than applying configuration changes in a manner that avoids doing them on a unit that is handling the traffic. Applying changes on the standby and then failing over and syncing or utilizing a maintenance window would be common schemes to achieve a separation between production traffic and configuration changes.

---

579210 : VIPRION B4400N blades might fail to go Active under rare conditions.

Component: TMOS

Symptoms:
Over extended periods of booting and rebooting a VIPRION system containing B4400N blades, a switch port connected to the HSB might fail to initialize properly. In some cases, logs indicate an occurrence of the problem in the following form: hgm_fcs_errs[higig mac #] exceeds 1000.

Conditions:
This happens under very rare conditions on B4400N blades; for example, after approximately 8-12 hours of continuous rebooting.

Impact:
When the problem is manifest, the HSB receives FCS errors at a high-frequency and does not receive any valid traffic from the port switch. The B4400N blade might be unable to go active and join the cluster.

Workaround:
To recover, reboot the system once.

---

578564-4 : ICAP: Client RST when HTTP::respond in HTTP_RESPONSE_RELEASE after ICAP REQMOD returned HTTP response

Component: Service Provider

Symptoms:
Connection aborted with RST "ADAPT unexpected state transition (old_state 22 event 7)"

Conditions:
An HTTP virtual has a request-adapt profile.
The ICAP server returns an HTTP response for REQMOD.
An iRule executes HTTP::respond in the HTTP_RESPONSE_RELEASE event.

Impact:
HTTP::respond cannot be used to modify an HTTP response returned by an ICAP server that is modifying an HTTP request.

---

578064 : tmsh show sys hardwares show "unavailable" for hard disk manufacturer on B4400/B4450 blade

Component: TMOS

Symptoms:
tmsh show sys hardware show "unavailable" for hard disk manufacturer

Conditions:
In VIPRION B4400/B4450 blades, tmsh show sys hardware always shows "unavailable" for hard disk manufacturer.

Impact:
Can't get correct hard disk manufacturer information.

---

578036-1 : incorrect crontab can cause large number of email alerts

Component: TMOS

Symptoms:
There is an incorrect crontab entry in /etc/cron.usbflush for /sbin/lsusb

Conditions:
This occurs for the usbflush entry.

Impact:
usbflush does not run, alert email is generated once per minute.

Workaround:
change /etc/cron.usbflush to use /usr/bin/lsusb

---

577863-6 : DHCP relay not forwarding server DHCPOFFER and DHCPACK message after sometime

Component: Policy Enforcement Manager

Symptoms:
If routing table on DHCP server is mis-configured, so that DHCP server know how to send packets to BigIP selfIP(used by BigIP DHCP relay), but does not know how to send packets to DHCP clients, DCHP client will not receive DHCP reply for unicast request and will start to broadcast DHCP renewal. After a while, BigIP will stop to relay DHCPOFFER and DHCPACK back to DHCP clients all together.

Conditions:
DHCP server unicast reply back to client is not received by client, causing DHCP client to send broadcast DHCP packets(with client's IP as source IP).

Impact:
BigIP will stop to relay DHCPOFFER and DHCPACK back
to DHCP clients

Workaround:
Fix the DHCP server routing table, so that DHCP server can deliver DHCP reply packet back to client successfully.

---

577814-6 : MCPd might leak memory in PEM stats queries.

Component: Policy Enforcement Manager

Symptoms:
System may be unresponsive or crash due to being out of memory.

Conditions:
Can occur when a PEM stats query is processed.

Impact:
System may be unresponsive or crash due to being out of memory.

Workaround:
None.

---

576305-8 : Potential MCPd leak in IPSEC SPD stats query code

Component: TMOS

Symptoms:
MCPd leaks memory.

Conditions:
In some cases, querying IPSEC SPD stats can leak memory.

Impact:
MCPd might eventually run out of memory and core.

Workaround:
None.

---

575919-2 : Running concurrent TMSH instances can result in error in access to history file

Component: TMOS

Symptoms:
TMSH writes to the ~/.tmsh-history-username file whenever a command is issued. Running concurrent instances of TMSH can result in a race condition in writing this file.

Conditions:
Running multiple instances can cause one instance of TMSH to lock the history file while the other is trying to access it, resulting in an error.

Impact:
Updating the history file fails, so the file does not reflect the actual history of the commands that have been issued.

Workaround:
Only run a single instance of TMSH.

---

575649-7 : MCPd might leak memory in IPFIX destination stats query

Component: TMOS

Symptoms:
MCPd might leak memory in IPFIX destination stats query.

Conditions:
In some cases, querying IPFIX destination stats can leak memory.

Impact:
MCPd might eventually run out of memory and core.

Workaround:
None.

---

575591-5 : Potential MCPd leak in IKE message stats query code

Component: TMOS

Symptoms:
MCPd leaks memory.

Conditions:
In some cases, querying IKE message stats can leak memory.

Impact:
MCPd might eventually run out of memory and core.

Workaround:
None.

---

575589-4 : Potential MCPd leak in IKE event stats query code

Component: TMOS

Symptoms:
MCPd leaks memory.

Conditions:
In some cases, querying IKE event stats can leak memory.

Impact:
MCPd might eventually run out of memory and core.

Workaround:
None.

---

575587-8 : Potential MCPd leak in BWC policy class stats query code

Component: TMOS

Symptoms:
MCPd leaks memory.

Conditions:
In some cases, querying BWC policy stats can leak memory.

Impact:
MCPd might eventually run out of memory and core.

Workaround:
None.

---

575176-1 : Syn Cookie cache statistics on ePVA enabled devices is incremented with UDP traffic

Component: TMOS

Symptoms:
In some scenarios UDP traffic can cause syncookie statistics to be incremented.

Conditions:
Virtual server with fastL4 profile with ePVA offload enabled.
Virtual server to handle UDP traffic.

Impact:
Statistics might be incorrectly incremented, and can lead to early syncookie activation if used in conjunction with TCP on the same virtual server.

---

575170-2 : Analytics reports may not identify virtual servers correctly

Component: Application Visibility and Reporting

Symptoms:
In certain configurations, Analytics statistics on virtual server activity may not be reported correctly.

Conditions:
This occurs for virtual servers that are configured in one of these ways:

1. Two virtual servers have the same IP-Port-RouteDomain setting, but they use different protocols (such as TCP for one and UDP for the other) or different sources.

2. A virtual server is defined with a masked IP address rather than an explicit address (for example, 10.10.10.0/24).

Impact:
As a result, Analytics reports show an Aggregated Virtual Server or an incorrect one instead of displaying the correct virtual servers.

Workaround:
None.

---

575066-1 : Management DHCP settings do not take effect

Component: TMOS

Symptoms:
Modifications to /sys management-dhcp do not take effect.

Conditions:
Custom management-dhcp settings configured.

Impact:
DHCP for management interface does not function correctly.

---

575011-1 : Fix memory leak.

Component: Local Traffic Manager

Symptoms:
System exhausts available memory due to compression memory leak. Prior to running out of memory, repeatedly logs "Nitrox3 Hang Detected".

Conditions:
Compression device unavailable during creation of a new context.

Impact:
System can run out of memory.

Workaround:
Disable hardware compression using tmsh:

% tmsh modify sys db compression.strategy softwareonly

---

574880-2 : Excessive failures observed when connection rate limit is configured on a fastl4 virtual server.

Component: Local Traffic Manager

Symptoms:
When connection rate limit is set on a fastL4 virtual server,
client connections hang with high probability.

Conditions:
Set Connection Rate Limit on a fastL4 virtual server.

Impact:
Client connections hang with high probability.

Workaround:
Do rate limiting using iSession.

---

574318-3 : Unable to resume session when switching to Protected Workspace

Component: Access Policy Manager

Symptoms:
Clients logging into Protected Workspace are unable to view the page. The client's log file may have the following signature: HandlePwsCmd, detoured.dll signature validation error

Conditions:
This occurs infrequently on certain Windows clients logging into Protected Workspace

Impact:
Client browser cannot render the protected workspace

---

574153-4 : If an ssl client disconnects during the handshake, the SSL flow may stall.

Component: Local Traffic Manager

Symptoms:
If the TCP connection shuts down while SSL has offloaded a request to the Nitrox, the connection will stall until the flow expires. This can use excessive memory causing crashes elsewhere.

Conditions:
SSL must be configured on an interface, and a client must connect, begin the handshake, then disconnect while Nitrox requests are outstanding.

Impact:
Other parts of the TMM might crash causing service disruption.

---

574113-2 : Block All - Session Tracking Status is not persisted across an auto-sync device group

Component: Application Security Manager

Symptoms:
Users, IP addresses, and Sessions that are meant to be blocked due to their traffic patterns, are not being synchronized to the peer device in an auto-sync device group with ASM sync enabled.

This can lead to bad actors becoming unblocked again after failover, or in an Active-Active configuration.

Conditions:
1) Devices are in an auto-sync device group with ASM sync enabled.
2) Session Tracking is enabled.

Impact:
This can lead to bad actors becoming unblocked again after failover, or in an Active-Active configuration.

Workaround:
Force a full sync to propagate the session tracking information.

---

574055-4 : TMM crash after changing raccoon log level

Component: TMOS

Symptoms:
TMM crashes after changing the raccoon log level to debug2

Conditions:
Debug level is set to debug2 while tmm is passing traffic

Impact:
Traffic disrupted while tmm restarts.

Workaround:
set debug level to INFO

---

574052-3 : GTM autoconf can cause high CPU usage for gtmd

Component: Global Traffic Manager

Symptoms:
The autoconf feature of GTM can cause high CPU utilization (~90%) under certain situations.

In large configurations of LTM vses that contain "." (dot) in the name.

Conditions:
Large configuration of LTM VS that contain "." in the name have the name converted ("." is replaced by "_") and the LTM VS name is saved to the config.

This causes the matching algorithm in autoconf to spend many CPU cycles walking the list of VS to find a match.

This problem is caused by large numbers of VSes on a GTM Server. (10k VSes on 10k Server is less of an issue
than 10k VSes on 1 GTM Server)

Impact:
CPU usage is high, which may impact monitoring and LB decisions.

Workaround:
There are some mitigations. The preferable (for performance
and stability) are listed first.

1. Rename the virtual servers on the LTM to remove the "."
   This would require deleting the GTM configuration and
   rediscovering it and recreating pools.

2. Turn off autoconf.
   Run autoconf once to populate the config, then turn it
   off.

3. Reduce the frequency of autoconf. It will still cause
   a high CPU usage scenario, but it will be less frequent.

Versions 12.0.0 and higher do not convert the "." to "_". So that problem is eliminated for new configurations.
If a customer upgrades to 12.0.0 and the config still contains VS names that were previously converted, they still may run into high CPU usage.
Upgrading to 12.0.0 alone does not fix this issue, a reconfig would be necessary.

---

573643-3 : flash.utils.Proxy functionality is not negotiated

Component: Access Policy Manager

Symptoms:
Access to some field names of classes inherited from flash.utils.Proxy is broken.

Conditions:
Presence of flash.utils.Proxy descendants.

Impact:
Customer application malfunction.

Workaround:
None.

---

573584 : CPLD update success logs at the same error level as an update failure

Component: TMOS

Symptoms:
On booting after a successful CPLD update, you see an error in /var/log/ltm: "err chmand[4933]: 012a0003:3: CPLD not updated after previous power cycle."

Conditions:
This occurs during reboot after a successful firmware update

Impact:
The message is logged as an error, but it actually means that the CPLD version is as it is expected to be. This error can be safely ignored.

---

573075-4 : ADAPT recursive loop when handling successive iRule events

Component: Service Provider

Symptoms:
After the first iRule resumes from being parked, ADAPT attempts to process the second iRule event repeatedly.
The connection is aborted with RST cause "ADAPT unexpected state transition".
The adapt profile statistic "records adapted" reaches a very high number as it counts every attempt.

Conditions:
A requestadapt or responseadapt profile is configured.
An iRule is triggered on the ADAPT_REQUEST_RESULT or ADAPT_RESPONSE_RESULT event, that parks.
The modified headers (from an ICAP server) arrive at the ADAPT filter while the first event is parked.
Any iRule on the ADAPT_REQUEST_HEADERS or ADAPT_RESPONSE_HEADERS event does not park.

Impact:
The connection is aborted with RST cause "ADAPT unexpected state transition".
The statistic "records adapted" reaches a very high number.
Eventually the TMM crashes and the Big-IP fails over.

Workaround:
If possible, arrange the iRules to avoid the conditions above.
In particular, if there is no better way, it is possible to avoid this if there is an iRule on the ADAPT_REQUEST_HEADERS or ADAPT_RESPONSE_HEADERS event that parks.

---

572680-5 : Standby TMM might overflow send buffer if out of sync with Active TMM

Component: Local Traffic Manager

Symptoms:
Send buffer size is unlimited on a standby TMM. If sync is lost with the active TMM while a TCP client is advertising a zero receive buffer, the standby TMM might continue to use a zero send buffer indefinitely. This eventually leads to the send buffer overflowing on the standby TMM.

Conditions:
Standby TMM loses sync with active TMM while a TCP client's advertised receive window is zero.

Impact:
Standby TMM can accumulate too much data in the send buffer and overflow.

Workaround:
This issue is less likely with a low zero-window-timeout value in the TCP profile.

---

572558-1 : Internet Explorer: incorrect handling of document.write() to closed document

Component: Access Policy Manager

Symptoms:
HTML page with document.write() operations inside event handlers may not be processed correctly. Internet Explorer may show error on this page.

Conditions:
HTML page with document.write() calls inside event handlers or another scripts executed after document loading.
Strings passed to document.write() function contain HTML tags with URL or another re-writable content in attributes.

Impact:
HTML page is not shown at all or works incorrectly in Internet Explorer.

Workaround:
No workaround known

---

572519-1 : More than one header name/value pair not accepted by ACCESS::respond

Component: Access Policy Manager

Symptoms:
An error is seen when ACCESS::respond command is used, for example, in an iRule with multiple header name/value pairs.

Conditions:
When ACCESS::respond command is used with multiple header name/value pairs.

Impact:
An error is generated when the command is used.

Workaround:
Let the command take only one name/value pair.

---

572281-5 : Variable value in the nesting script of foreach command get reset when there is parking command in the script

Component: Local Traffic Manager

Symptoms:
When there is something like the following script:

foreach a [list 1 2 3 4] {
   set a 10
   after 100
}

There is parking command, after, in the script and it runs after "set a 10", when after command returns, the value of a goes back to the initial value set in the foreach, value of 10 is lost.

Conditions:
There is parking command in the nesting script of foreach. For more information on commands that park, see SOL12962: Some iRule commands temporarily suspend iRule processing at https://support.f5.com/kb/en-us/solutions/public/12000/900/sol12962.html

Impact:
Variable values get reset.

Workaround:
Set(or set again) the variable value after the parking command.

---

571333-5 : fastL4 tcp handshake timeout not honored for offloaded flows

Component: TMOS

Symptoms:
When a VIP is configured with a fastl4 profile that enables full acceleration and offload state to embryonic, and if a flow is offloaded to be hardware accelerated, the connection idle timeout during the TCP handshake is set to the "idle timeout" value of the fastl4 profile, but it should be set to the "tcp handshake timeout" instead.

Conditions:
1. Configure fastl4 profile with ePVA=full, offload state=SYN, apply to network VS
2. Ensure ARP entry exists for server node (static arp, ping, etc.) to satisfy requirements for offloading initial SYN
3. Send over SYN packet from client to server via VS

Impact:
The connection may remain in the half-open state longer than what is set in the TCP handshake timeout value.

Workaround:
Set the offload state to "established"

---

569968 : snmpd core during startup

Component: TMOS

Symptoms:
sod reanimates (with core dump) snmpd due to heartbeat timeout during BIG-IP system startup and configuration load.

Conditions:
During startup and configuration load, snmpd sometimes blocks while waiting for certain system resources to become available. If snmpd blocks longer than its configured heartbeat timeout, sod reanimates it (with a core dump).

Impact:
Only impact is the generation of a core file.

Workaround:
Increase the snmpd heartbeat timeout to 300 seconds or more.

The 11.5.1 default timeout of 60 seconds might be too short for certain platforms and configurations. The default timeout for later releases is 300 seconds.

---

569563-4 : Sockets resource leak after loading complex policy

Component: Access Policy Manager

Symptoms:
Sockets used by apmd remain unclosed (TCP and UDP) after loading complex access policy.

After some time the APM process file descriptor table is exhausted and no more access policies are processed.

Error messages may be observed in the logs:

err apmd[16013]: 01490000:3: HTTPParser.cpp func: "readFromSocket()" line: 86 Msg: epoll_create() failed [Too many open files].

Conditions:
Access policy log level is debug.

Sockets will leak (remain unclosed) after loading complex policy that contains many agents.

Impact:
The APM process is unable to create sessions leading to an inability to process access policy operations.

Workaround:
This only happens when access control log level is DEBUG, and will only happen at the initial stage after apmd starts. So to work around this issue, set access control log level to anything above DEBUG, then adjust the log level as desired after apmd starts and completely loads policy (after 5 minutes). If leakage is still observed, try waiting for a longer period of time.

Note 1: please do NOT use sys db variables to change log level for 12.0.0 and later.

Note 2: Please double check log levels using CLI command
"tmsh list apm log-setting all-properties"

Note 3: Please make sure to "bigstart restart apmd" after modifying log levels. Otherwise the opened file descriptors won't go away. This is a special step for this bug only.

Note 4: When in doubt (whether you are encountering BZ569563), run the following command on BigIP and send the result:
lsof -p `pidof apmd` | grep TCP; lsof -p `pidof apmd` | grep UDP

Detailed steps:

Step 1. modify access control log level: tmsh modify apm  log-setting all access modify { all { log-level { access-control notice } } }
Step 2. check the log levels: tmsh list apm log-setting all-properties
Step 3. manually restart apmd: bigstart restart apmd

---

569331-1 : Recovery from Amazon Network Failure may associate some virtual addresses to the standby BIG-IP

Component: TMOS

Symptoms:
Traffic will not pass to virtual servers of a traffic group

Conditions:
BIG-IP AWS
High Availability
AWS network outage

Impact:
Some of virtual addresses end up associated with the standby BIG-IP; traffic will not pass to their virtual servers.

Workaround:
If the desired BIG-IP is standby, failover to the BIG-IP.
If the desired BIG-IP is already active, failover from this BIG-IP and then failover back to this BIG-IP.

---

569309-3 : Clientside HTML parser does not recognize HTML event attributes without value

Component: Access Policy Manager

Symptoms:
Assignment of a specific HTML content to tag.innerHTML could lead to a JavaScript error. This happens when one or more of tags in HTML text contain html event attributes without value (such as <div onclick />)

Following or similar error is logged in browser JavaScript console:
Unable to get property 'charAt' of undefined or null reference

Impact:
Web application does not work when accessed through Portal Access.

Workaround:
iRule could be provided for specific application.

---

569288-6 : Different LACP key may be used in different blades in a chassis system causing trunking failures

Component: Local Traffic Manager

Symptoms:
In rare conditions, different blades in a chassis system may use different LACP keys for the same trunk in the LACP control frames. This will cause some of the LACP trunk members not able to aggregate successfully with peer switch.

Conditions:
This only happens in a chassis based system when certain race condition causes trunk id being modified after initial trunk creation.

Impact:
Non aggregated trunk members won't be able to pass traffic.

Workaround:
Restart lacpd in all the blades in the chassis by running command "clsh bigstart restart lacpd"

---

568543-4 : Syncookie mode is activated on wildcard virtuals

Component: Local Traffic Manager

Symptoms:
Syncookie mode can be activated with a wildcard virtual, even in the case where there is no SYN flood.

Conditions:
The default number of connections per second before activating syncookie mode is 1993. This value can be increased to a max of 4093. After this threshold is reached, then syncookie mode is activated. This is an insufficient maximum for wildcard virtuals, since they can have 30k+ connections per second.

Impact:
Syncookie mode is activated with high connection rates to a wildcard virtual.

Workaround:
Break up the wildcard virtual into multiple virtuals to reduce the number of connections per virtual.

---

567457-2 : TMM may crash when changing the IKE peer config.

Component: TMOS

Symptoms:
TMM might crash when changing the IKE peer config. It can happen with either IKEv1 or IKEv2 (TMM config crash).

Conditions:
This occurs when making changes to IPsec tunnels that causes the configuration to become invalid. For example, changing ISAKMP phase1 from SHA-1 to MD5 results in an invalid configuration.

Note: This occurs in the GUI only. The tmsh 'create' command does not cause this core.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
You can use tmsh to make the affected configuration changes... this occurs in the GUI only. The tmsh 'create' command does not cause this core.

---

566576-6 : ICAP/OneConnect reuses connection while previous response is in progress

Component: Service Provider

Symptoms:
ICAP with OneConnect sometimes initiates a new ICAP request (REQMOD or RESPMOD) on the server connection while a previous response on the same connection is still being streamed from the ICAP server. This can cause the server to append the new response after the end of the previous response, in the same packet.

Conditions:
There is a 'oneconnect' profile on the internal virtual server along with the 'icap' profile.
Triggered by a disconnection of the IVS by the parent HTTP virtual server, before the ICAP transaction is complete.
This can happen for a number of reasons, such as an error in detected on the HTTP virtual server, or an HTTP::respond iRule that replaces an IVS response in progress.

Impact:
The connection used by the interrupted transaction is returned to the pool for reuse, potentially resulting in a new ICAP transaction beginning before the end of the interrupted one, and its response may be concatenated to the incomplete tail of the first one. OneConnect is unable to separate the contiguous ICAP responses whose boundary is within a packet. All the packet payload goes to the first ICAP transaction, and any payload after the terminating chunk is discarded. Thus the beginning of the second response is lost and its header parser gets confused. It keeps waiting for more data and rescanning the entire response, resulting in increasing CPU use up to 100% until the connection is aborted.

Workaround:
Remove OneConnect.

---

566507-4 : Wrong advertised next-hop in BGP for a traffic group in Active-Active deployment

Component: TMOS

Symptoms:
The advertised next-hop is a floating-IP of the active traffic-group on a peer BIG-IP system, although it should be the floating-IP of the traffic-group active on the current BIG-IP system.

Conditions:
-- In a BIG-IP high availability (HA) configuration.
-- The HA configuration is Active-Active topology.
-- There are multiple traffic-groups, in which each device is active for one traffic-group.

Impact:
An incorrect next-hop in BGP is advertised for a traffic group in Active-Active deployment. Traffic for relevant advertised routes might go to a standby device.

Workaround:
Configure the floating address of a traffic group as the next-hop in its route-map.

---

566342 : Cannot set 10T-FD or 10T-HD on management port

Component: Local Traffic Manager

Symptoms:
When setting the B4450 or B4300 mgmt port to 10T-FD or 10T-HD, there is no link LED. However, the peer unit shows the correct link LED for this setting.

Conditions:
B4450 or B4300 blade and you want to set 10T-FD or 10T-HD media type

Impact:
Unable to set this media type.

---

565799-6 : CPU Usage increases when using masquerade addresses

Component: Local Traffic Manager

Symptoms:
When using masquerade addresses, CPU usage increases. This can ultimately lead to a reduction in device capacity.

Conditions:
This can occur if one or more of your traffic groups is configured to use a MAC Masquerade address.

Impact:
Possible performance degradation or reduction in capacity

---

563933-4 : [DNS] dns64-additional-section-rewrite v4-only does not rewrite v4 RRs

Component: Local Traffic Manager

Symptoms:
A and AAAA RRsets in the additional section are dropped.

Conditions:
When dns64-additional-section-rewrite is 'v4-only' or 'v6-only'.

Impact:
Failure to include the additional RRs results in additional lookups by the client which could be glue records for a resolver.

Workaround:
Set dns64-additional-section-rewrite is 'any'.

---

562928-2 : Curl connections with 'local-port' option fail sometimes over IPsec tunnels when connection.vlankeyed db variable is disabled

Component: TMOS

Symptoms:
Certain url connections with 'local-port' option fail sometimes over IPsec tunnels when connection.vlankeyed db variable is disabled with 'curl: (7) couldn't connect to host' error.

Conditions:
Using curl command with'--local-port' option causes the connections to fail on the BIG-IP system.

Impact:
TCP connections do not complete the three way handshake and traffic does not pass.

Workaround:
Disabling 'cmp' option in virtual server secures the traffic over IPsec tunnels.

---

562636-2 : Possible memory exhaustion in access end-user interface pages for transparent proxy/SWG cases.

Component: Access Policy Manager

Symptoms:
When certain end user interface pages (e.g. 401 response) are served by the APM, these include a unique parameter in the URL. This results in the leak of objects representing caches for these pages, because their unique parameter renders caching ineffective.

Conditions:
This occurs when the following conditions are met:
-- Use of SWG in Transparent mode.
-- One of the following:
+ Use a logon page agent, an external logon page agent, or a 401 agent in the access policy.
+ Trigger an access policy evaluation when one is already in progress or when accessing a page that requires an established session.

Impact:
A memory leak in the TMM.

Workaround:
None (when the triggering conditions are encountered).

---

562267-2 : FQDN nodes do not support monitor alias destinations.

Component: Local Traffic Manager

Symptoms:
FQDN nodes do not support monitor alias destinations.

Conditions:
Configure a monitor with an alias address or port. The system will either prevent you from configuring, or the monitor will only be directed to the node address or port.

Impact:
The BIG-IP system does not send health checks to the configured monitor alias port. Monitor doesn't work as expected.

Workaround:
Depending on the functionality needed, you might be able to work around this by using an alternative configuration.

---

561444-1 : LCD might display incorrect output.

Component: TMOS

Symptoms:
Incorrect LCD display due to garbled messages received from LCD panel.

Conditions:
This occurs in various situations. Multiple messages sent to LCD and user interaction on LCD seem to reproduce the issue.

Impact:
LCD may display incorrect data.

Workaround:
The LCD usually corrects itself eventually, but to restore it immediately to a good state, run the following command: bigstart restart fpdd.

---

561348-6 : krb5.conf file is not synchronized between blades and not backed up

Component: Access Policy Manager

Symptoms:
krb5.conf file is not in sync across all blades.
this may cause a feature (Kerberos SSO / Kerberos Auth) to not work as expected

Conditions:
when administrator made changes to krb5.conf file manually, the configuration file is not synchronized to all blades or is lost upon upgrade

Impact:
Kerberos Auth / Kerberos SSO does not work properly on all blades

Workaround:
manually copy krb5.conf file to all blades

---

560601-1 : HTML5 File API and MediaSource URLs are blocked in Portal Access

Component: Access Policy Manager

Symptoms:
Web Application is not working and a message similar to following is logged to the developer tools console in the browser:
"Refused to load media from 'blob:https://...' because it violates the following Content Security Policy directive: ..."

Conditions:
This occurs on web applications that are using the HTML5 file API

Impact:
Applications with usage of HTML5 File API could stop working when accessed via APM Portal Access.

Workaround:
when HTTP_RESPONSE_RELEASE {
    if { [HTTP::header exists Content-Security-Policy] } {
        HTTP::header replace Content-Security-Policy \
            [string map {"data:" "data: blob: mediasource: mediastream:"} [HTTP::header Content-Security-Policy]]
    }
}

---

559080-5 : High Speed Logging to specific destinations stops from individual TMMs

Component: TMOS

Symptoms:
High Speed Logging to specific destinations stops from individual TMMs. The flows appear to have very large idle times. Attempts to delete the flows sets the idle time to zero, but does not kill the flow.

Conditions:
This appears to be the result of a failure on the part of the log destination (for example, a log server) wherein the server's TCP stack ACKs a FIN request from the TMM, but does not follow through with a matching FIN or RST. The logging code expects another timeout (essentially a FIN-WAIT2 timeout), but never receives one because the flow has already been marked as expired. As a result, the flow goes into a state in which it appears to be viable but is not actually delivering.

Impact:
Logs are silently lost.

Workaround:
Create an additional virtual server to act as a proxy for the log server, and sent the logs to this virtual server. This essentially uses the TMM itself as a sanitizing proxy.

---

557680-3 : Fast successive MTU changes to IPsec tunnel interface crashes TMM

Component: TMOS

Symptoms:
Changing IPsec tunnel interface MTU attribute repeatedly in quick succession, TMM cores. This can occur whether or not traffic has flowed through the tunnel.

Conditions:
The issue occurs when the IPsec tunnel interface attributes has its configuration modified quickly and repeatedly.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
Change IPsec tunnel interface attributes at a rate of speed that allows each configuration modification to complete.

---

557471-2 : LTM Policy statistics showing zeros in graphical UI

Component: TMOS

Symptoms:
Statistics for LTM Policies, i.e. the total count of policy action invocations and number of successful policy action invocations, are not being updated in the graphical UI. The graphical UI shows zeros for both of these stats for every LTM Policy.

Conditions:
Occurs under all conditions.

Impact:
Through the GUI, Administrators cannot see invocation counts for general troubleshooting or to determine which policies are being used.

Workaround:
Accurate stats can be obtained from the command line using tmsh.

Stats for all policies can be obtained by the following:
# tmsh show ltm policy.

Stats for a specific policy can be obtained by specifying the policy name.
# tmsh show ltm policy <policy-name>.

---

557358-2 : TMM SIGSEGV and crash when memory allocation fails.

Component: Local Traffic Manager

Symptoms:
TMM SIGSEGV and crash when memory allocation fails.

Conditions:
Although the specific conditions under which this occurs are not well understood, it appears that the issue occurs when the SSL operation detects an error and processes the connection for removal from the SSL queue. Before the connection is removed, another command attempts to remove the connection a second time, which causes the issue to occur.

Impact:
TMM SIGSEGV and crash. Traffic disrupted while tmm restarts.

Workaround:
None known at this time.

---

555039-4 : VIPRION B2100: Increase egress traffic burst tolerance for dual CoS queue configuration

Component: TMOS

Symptoms:
There is a high drop counts when running tmsh show net interface, and running tmctl -a drop_reason shows that a large number of drops are due to counters.rx_cosq_drop

Smaller buffering alpha values are configured for egress buffering to allow an 8 HW CoS queue feature to correctly implement weight based egress dropping. This results in busy ports dropping more aggressively, although allowing more fair buffering amongst multiple active ports.

Conditions:
Higher traffic rates, which stress switch MMU buffering resources, might result in egress CoS queue drop on busy ports.
This affects the BIG-IP 5000- and 7000 series platforms, and VIPRION B2100, B2150, and PB200 blades.

Impact:
This results in busy ports dropping more aggressively. Note that using smaller values allows more fair buffering amongst multiple active ports, whereas higher values allow better burst absorption but less fair buffering.

Workaround:
None.

---

554504 : Client OS version not logged in Browser/OS Reports for iOS client devices

Component: Access Policy Manager

Symptoms:
When an iOS device is used to login with APM, the client OS version is not logged and is not correctly reported in the Browser/OS Report.

Conditions:
Client device must run iOS.

Impact:
Devices running different versions of iOS are not differentiated in the Browser/OS Report.

Workaround:
None.

---

553795-7 : Differing certificate/key after successful config-sync

Component: TMOS

Symptoms:
1) If you change a client-ssl profile to a different certificate/key, delete the original certificate/key, create a new certificate/key with the same name as the original one, associate the new certificate/key with the original client-ssl profile, then do a config-sync, the peer system(s)' FIPS chip will retain a copy of the original key.

2) If you change a client-ssl profile to a different certificate/key, delete the original certificate/key, create a new certificate/key with a different name from the original one, associate the new certificate/key with the original client-ssl profile, then do a config-sync, the peer's client-ssl profile will still use the original certificate/key instead of the new one.

Conditions:
1) High Availability failover systems with FIPS configured with Manual Sync.

2) High Availability failover systems configured with Manual Sync.

Impact:
1) An abandoned FIPS key is left behind.

2) The systems claim to be synced, but one system's client-ssl profile uses one certificate/key pair, while the other system(s)' same client-ssl profile uses a different certificate/key pair.

Workaround:
1) Workaround #1: Run an extra config-sync before the second change of the client-ssl profile.
   Workaround #2: Delete the FIPS key by-handle on the peer system(s).

2) Workaround #1: Run an extra config-sync before the second change of the client-ssl profile.
   Workaround #2: Manually update the client-ssl profile then delete the old certificate/key on the peer system(s).

---

553063-3 : Epsec version rolls back to previous version on a reboot

Component: Access Policy Manager

Symptoms:
If administrator has installed multiple EPSEC packages, after a reboot the EPSEC version rolls back to the previously installed version.

Conditions:
The BIG-IP system needs to be rebooted for this issue to be seen, and multiple EPSEC packages must have been installed on the system before the reboot.

Impact:
OPSWAT version rolls back without prompting or logging. This might open up the end-point security issues that are supposed to be fixed by the latest installed OPSWAT package.

Workaround:
The workaround is to upload a dummy file in Sandbox.
1. Go to Access Policy :: Hosted Content :: Manage Files.
2. Upload any dummy file, even a 0 byte file. Change the security level to 'session'.

After this change, even if you reboot or shutdown-restart, the EPSEC version does not revert.

---

552444-1 : Dynamic drive mapping in network access may not work if path is received via session variable from LDAP/AD

Component: Access Policy Manager

Symptoms:
Dynamic drive mapping in network access may not work if
mapping is configured to use session variable, and session variable is received from LDAP/AD.

Conditions:
Drive mapping is received from LDAP/AD and contains double slash in the path, e.g. "\\server\path"

Impact:
Dynamic drive mapping may not function.

Workaround:
For example using session.ad.last.attr.homeDirectory attribute value to drive map. Assign variable and escape the textra backslashes added by APM.

homeDirectory = return [regsub -all {\\\\} [mcget {session.ad.last.attr.homeDirectory}] {\\}]

---

551208-6 : Nokia alarms are not deleted due to the outdated alert_nokia.conf.

Component: Local Traffic Manager

Symptoms:
Some of the log messages watched by alertd changed between BIG-IP software versions 10.x to versions 11.x/12.x. However, the /etc/alertd/alert_nokia.conf file has not been updated accordingly.

Conditions:
Running versions 11.x/12.x and receiving targeted messages that match the 10.x regex key fields. This occurs when the Nokia snmp alarms are enabled. See solution 15435 at https://support.f5.com/kb/en-us/solutions/public/15000/400/sol15435.html

Impact:
Matching the specific fields in the log message fails, so the corresponding alarm is not deleted from the nokia_alarm table. This might cause SNMP alerts to not be broadcast in Nokia-specific environments.

Workaround:
None.

---

549329-4 : L7 mirrored ACK from standby to active box can cause tmm core on active

Component: Local Traffic Manager

Symptoms:
A spurious ACK sent to the standby unit will be mirrored over to the active unit for processing. If a matching connection on the active has not been fully initialized, tmm will crash.

Conditions:
HA active-standby pair setup for L7 packet mirroring.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
None.

---

546145-2 : Creating local user for previously remote user results in incomplete user definition.

Component: TMOS

Symptoms:
Creating a local user for a user who previously authenticated using a remote mechanism (e.g. LDAP, RADIUS) results in a user who has no partition-access. Additionally, the user cannot be modified via web UI.

Conditions:
Configure remote system authentication. Create a local user for remotely authenticated user.

Impact:
User cannot authenticate. User name does not appear in User List.

Workaround:
After initial creation, modify local user via tmsh to include appropriate partition-access.

---

545810-3 : ASSERT in CSP in packet_reuse

Component: Local Traffic Manager

Symptoms:
Causes TMM to crash

Conditions:
This crash will happen on LTM virtuals that meet the following two configuration criteria:
- the virtual is configured with fasthttp profile.
- the virtual's enabled VLAN is mapped to the _loopback interface.

Impact:
Crash and restart of TMM

Workaround:
None

---

545796-4 : [iRule] [Stats] iRule is not generating any stats for executed iRules.

Component: Local Traffic Manager

Symptoms:
iRule is not generating any stats for executed iRules when the rule is removed/edited and then re-added to the virtual server.

Conditions:
This occurs when the following steps are taken:
1. Move/edit an iRule that is attached to a virtual server.
2. Pass traffic to the virtual server.
3. Add the iRule back to the virtual server.

Impact:
No iRule usage stats available.

Workaround:
None.

---

543344-3 : ACCESS iRule commands do not work reliably in HTTP_PROXY_REQUEST event

Component: Access Policy Manager

Symptoms:
When a BIG-IP system is configured with explicit HTTP proxy, ACCESS iRule does not work reliably in HTTP_PROXY_REQUEST. The issue happens when the current ACCESS iRule searches the associated session ID from the connection itself in these ways: either the session ID is embedded in the request, or the connection has been processed by ACCESS previously. When neither condition is satisfied, then current ACCESS iRule cannot find the associated session ID.

Conditions:
ACCESS iRule such as ACCESS::session data get/set, ACCESS::session exists, session ID is not provided by the caller, and caller expects the session ID to be resolved internally.

Impact:
Whenever ACCESS iRule commands cannot find the associated session ID, ACCESS iRule commands are processed as if the caller provided an empty session ID in its arguments. As a result, ACCESS::iRule commands return an empty result.

Workaround:
If possible, use ACCESS_ACL_ALLOWED as the event for the iRule, when the session ID is known. This would work for a BIG-IP system configured for reverse proxy or forward proxy.

---

542104-2 : In rare circumstances, it is possible for the TCP timestamps sent by the BIG-IP system to be inconsistent between blades.

Component: Local Traffic Manager

Symptoms:
In rare circumstances, it is possible for the TCP timestamps sent by the BIG-IP system to be inconsistent between blades.

TCP monitors may fail because the server fails to respond to the initial TCP SYN.

TCP traffic that utilizes a SNAT may fail because the server fails to respond to the initial TCP SYN.

Conditions:
A server with tcp_tw_recycle enabled.

A multi-blade BIG-IP chassis.

Impact:
Monitor failures or traffic disruption.

Workaround:
After confirming that the time is properly synchronized across the chassis, reboot the chassis.

Alternatively, if your servers do not require tcp_tw_recycle to be enabled, it is recommended that you disable this setting on your servers.

---

542097-5 : Update to RHEL6 kernel

Component: TMOS

Symptoms:
Rare race condition between two (or more) threads operating on the same buffer_head/journal_head may cause a kernel panic

Conditions:
Running RHEL6 kernel under heavy disk load, more likely on a vCMP host

Impact:
Unexpected machine reboot causing loss of service

Workaround:
None.

---

541261-3 : Clientless NA fails when iRule agent is present in access policy

Component: Access Policy Manager

Symptoms:
The failure happens when we get the redirect to /vdesk/webtop.eui. This is in the whitelist as a portal protected URI, and when it doesn't have a valid sid, the action is to create a new session. Because this is clientless mode, there aren't any cookies, so it thinks it needs to create a new session. Then the old session is deleted, causing the logs to report a logout due to user request.

Conditions:
Windows 8.1 + APM 11.5.3.
Logon page -> irule agent -> Advanced resource assign (NA+NA webtop) -> Allow
  (no auth for logon page, everything should lead to allow)

Try to log on with the Windows inbox VPN client.

Impact:
VPN connection Failed; stating error invalid credentials. Logs show session deleted due to user logout request.

Workaround:
None.

---

537553-7 : tmm might crash after modifying virtual server SSL profiles in SNI configuration under load

Component: Local Traffic Manager

Symptoms:
Making configuration changes to SSL profiles for the virtual server configured for SSL SNI might crash tmm under load.

Conditions:
1. LTM virtual server is configured with multiple SSL profiles, one of which is the default SNI profile.
2. The BIG-IP system is under traffic load.
3. A change is made to any of the SSL profiles configured on the virtual server, or SSL profiles are added or removed from the virtual server profile list.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
None.

---

537209-5 : Fastl4 profile sends RST packet when idle timeout value set to 'immediate'

Component: Local Traffic Manager

Symptoms:
When a virtual is configured with a Fastl4 profile and the idle timeout value is set to 'immediate', traffic is handled improperly and a RST is issued.

Conditions:
A virtual is processing traffic that contains a Fastl4 profile with idle timeout set to 'immediate'.

Impact:
Traffic is Reset on a virtual where it should properly handle the traffic.

Workaround:
Avoid using the 'immediate' setting for the idle timeout value on a Fastl4 profile.

---

536563-3 : Incoming SYNs that match an existing connection may complete the handshake but will be RST with the cause of 'TCP 3WHS rejected' on subsequent packets.

Component: Local Traffic Manager

Symptoms:
Incoming SYNs that match an existing connection may complete the handshake but will be RST with the cause of 'TCP 3WHS rejected' on subsequent packets.

Conditions:
This occurs when the existing connection is closing while waiting on an ACK to the last FIN.

Impact:
Unexpected RSTs (Clientside).

Workaround:
None.

---

535119-1 : APM log tables initial rotation in MySQL may be wrong

Component: Access Policy Manager

Symptoms:
APM uses local MySQL to store logs and automatically rotate the log tables when the log table size exceeds a limit, which removes the oldest log table and make room for a new current log table.

However, the initial timestamps of those log tables may be very close--or the same in 1-second granularity of MySQL timestamps--right after the installation that initially creates those log tables. Due to the timestamp granularity, it may be wrong for APM to choose the oldest log table to remove in the first round of rotation, resulting in removal of log data that are not the oldest.

After the first rotation, the log table rotation should work as normal.

Conditions:
The first round of log table rotation after installation

Impact:
Log data that are not the oldest may be removed at the first round of log table rotation.

---

534457-5 : Dynamically discovered routes might fail to remirror connections.

Component: Local Traffic Manager

Symptoms:
When using dynamic routing, it's possible that L4 connections fail to remirror after a restart on the standby device. Initial mirroring works as expected, but remirroring might not work.

Conditions:
Using dynamic routes and mirroring, and either the active or standby restarts. If the active restarts, failover completes correctly, but connections might not remirror to the previously active device after it comes back online.

Impact:
Dynamically discovered routes might fail to remirror connections. One-way failover, similar to L7 virtual servers. Initial failover works as expected; subsequent failovers might drop connections.

Workaround:
Provide a static route instead of dynamic routes.

---

530266-4 : Rate limit configured on a node can be exceeded

Component: Local Traffic Manager

Symptoms:
Rate limit configured on a node is not honored and is exceeded. The excess per second can be as much as 10 (100%) when the limit is configured as 10.

Conditions:
More than 1 tmm needs to be there. Rate limit needs to be configured on the node.

Impact:
Node rate limit feature does not work as intended.

Workaround:
Rate limit can be shifted from the node to pool member and it works.

---

530109-2 : OCSP Agent does not honor the AIA setting in the client cert even though 'Ignore AIA' option is disabled.

Component: Access Policy Manager

Symptoms:
OCSP Agent does not honor the AIA setting in the client cert even though 'Ignore AIA' option is disabled.

Conditions:
-- User certificate has AIA configured.
-- Option 'Ignore AIA' is unchecked.
-- APM is configured.

Impact:
OCSP auth might fail as wrong URL is used.

Workaround:
1. Clean URL field.
2. Uncheck option 'Ignore AIA'.

---

530092-2 : AD/LDAP groupmapping is overencoding group names with backslashes

Component: Access Policy Manager

Symptoms:
Adding a group value that contains space(s) manually in AD/LDAP Group Resource Assign actions will result in the space(s) being escaped and thus invalidating match attempts. For example, adding group 'Foo Bar' (without the quotes) will result in an expression found in bigip.conf as follows:

expression "expr { [mcget -decode {session.ldap.last.attr.memberOf}] contains \"CN=Foo\\\\ Bar\" }"

The value '\"CN=Foo\\\\ Bar\"' will not match a memberOf group returned that contains 'CN=Foo Bar,...'.

Conditions:
Spaces are encoded with backslashes.

Impact:
Matching for memberOf group will not working.

Workaround:
N/A

---

527206-1 : Management interface may flap due to LOP sync error

Component: TMOS

Symptoms:
An error that occurs while reading the management interface registers might cause incorrect interpretation of the management interface state, which might cause the management interface to flap.
Example error sequence:
-- warning chmand[7018]: 012a0004:4: getLopReg exception: No LopCmd reply match found for action=0x1 obj_id=0x67 subobj=0x0 slot=0xff.
-- err chmand[7018]: 012a0003:3: GET_MEDIA failure (status=0xffffffff) page=0x%1 reg=0x0 : File mgmtif/BourneMgmtIfSvc.cpp Line 357.
-- warning chmand[7018]: 012a0004:4: getLopReg: lop data size does not match, u16DataLen=0x5 expected=0x7.
-- warning chmand[7018]: 012a0004:4: getLopReg: lop data size does not match, u16DataLen=0x7 expected=0x5.
...
notice chmand[7018]: 012a0005:5: Interface: 2/mgmt is DOWN.
...
notice chmand[7018]: 012a0005:5: Interface: 2/mgmt is UP.

Conditions:
This problem might occur rarely on BIG-IP 2000-/4000-series, 5000-/7000-series, and 10000-/12000-series appliances and on VIPRION 2100, 2150, 2250 blades.

Impact:
The management interface on the affected blade or appliance might be down for several seconds, 15 seconds being a typical interval.

Workaround:
None.

---

527119-4 : Iframe document body could be null after iframe creation in rewritten document.

Component: Access Policy Manager

Symptoms:
End users report being unable to use certain page elements in chrome (such as the Portal Access menu), and it appears that Javascript has not properly initialized.

Conditions:
The body of a dynamically created iframe document could be initialized asynchronously after APM rewriting. The issue is specific to Chrome browser and results in JavaScript errors on the following kind of code:
    iframe.contentDocument.write(html);
    iframe.contentDocument.close();
    <any operation with iframe.contentDocument.body>

One of applications known to contain such code and fail after APM rewriting is TinyMCE editor.

Impact:
Some JavaScript applications might not work correctly when accessed through Portal Access.

Workaround:
Revert rewriting of the document.write call with a post-processing iRule.
The workaround iRule will be unique for each affected application.

---

526708-4 : system_check shows fan=good on removed PSU of 4000 platform

Component: TMOS

Symptoms:
Running system_check on a 4000 platform with one PSU removed will still show status FAN=good; STATUS=good

Conditions:
This applies only to the BIG-IP 4000 platform.

Impact:
Fan shows status of 'good' when the PSU is removed. Reading the power supply status in the system_check output will show the PSU as down.

---

526519-1 : APM sessiondump command can produce binary data

Component: Access Policy Manager

Symptoms:
New session variable "session.access.scope" includes a null character after the value. This will result in piped grep commands from sessiondump such as:
sessiondump <args> | grep <search value>

returning the text:
Binary file (standard input) matches

instead of the expected output.

Note that this problem exists in APM version 12.

Conditions:
Using sessiondump command with pipe to grep.

Impact:
Administrator cannot use "grep" command with sessiondump.

Workaround:
Use "-a" option with grep. For example:
sessiondump <args> | grep -a <search value>

---

525429-11 : DTLS renegotiation sequence number compatibility

Component: Access Policy Manager

Symptoms:
OpenSSL library was modified to keep it compatible with RFC 6347 complaint DTLS server renegotiation sequence number implementation.

Conditions:
The old OpenSSL library is not compatible with RFC6347, the new OpenSSL library is modified to be compatible with RFC6347.
The current APM client is compatible with old OpenSSL library, not the new OpenSSL library.

Impact:
The current APM client is not compatible with new OpenSSL libary.

---

525378 : iRule commands do not validate session scope

Component: Access Policy Manager

Symptoms:
Assume that a user establishes a session on one virtual server. If the user learns his session ID, he may attempt to reuse that session ID to gain access to resources guarded by a different virtual server. When this happens, the iRule access session commands like [ACCESS::session sid] and [ACCESS::session exists] do not validate the scope of the session. The iRules consider sessions from other virtual servers to be valid, which can cause unintended results and potentially lead to end-users gaining higher privileges than administrators intended.

Conditions:
There may be multiple access profiles assigned to multiple virtual servers, but the iRule session commands will treat all sessions the same.

Impact:
If the administrator is not careful with how the iRule session commands are used, it can result in a user bypassing the access policy and receiving higher privileges than the administrator intended.

Workaround:
Care must be used to ensure that iRules using the session commands do not result in unintended behavior. An iRule similar to one below can be used to restrict a session to the virtual server on which it was created:

when ACCESS_ACL_ALLOWED {
  set sessionlistener [ACCESS::session data get "session.server.listener.name"]
  set virtualname [virtual name]
  
  if { [HTTP::cookie MRHSession] != "" } {
    if { not ($sessionlistener equals $virtualname) } {
      # enter whatever command you wish to use to prevent the connection
      reject
    }
  }
}

---

524123-1 : iRule ISTATS::remove does not work

Component: TMOS

Symptoms:
When an iRule invokes ISTATS::remove to remove an iStat, the iStat is not removed.

Conditions:
Invoking the ISTATS::remove command from an iRule.

Impact:
The value of the iStat remains defined.

Workaround:
Use istats-triggers and iCall scripts to invoke the iStats command line tool indirectly.

---

521370-1 : Auto-Detect Language policy has disallowed high ASCII meta-characters even after encoding is set to UTF-8

Component: Application Security Manager

Symptoms:
Auto-Detect Language policy has disallowed high ASCII meta-characters even after encoding is set to UTF-8, which results in suggestions for allowing meta-characters that cannot be accepted.

Conditions:
Auto-Detect Language policy is created, and then set to UTF-8 encoding.

Impact:
Suggestions for allowing high ASCII meta-characters cannot be accepted.

---

521270-1 : Hypervisor might replace vCMP guest SYN-Cookie secrets

Component: TMOS

Symptoms:
Traffic suddenly stops passing on platforms in vCMP mode when SYN-cookie mode is triggered.

Occasionally, under HW-SYN-Cookie mode, HW-SYN-Cookie validation can fail, which triggers the software SYN-Cookie procedure, which does succeed.

Under vCMP guest, you might notice hwalgo_accept increasing under TMCTL table epva_hwvipstat. If this packet's destination is the local high-layer TCP stack, there is no functional impact. Otherwise, there might be a performance impact.

Under vCMP mirroring, however, the packet (failed to validate by FPGA), is sent to the remote TMM, which does not have the correct secret to validate, which causes the connection issue.

Conditions:
vCMP provisioning setup.

Impact:
Under vCMP guest, you might notice hwalgo_accept increased under TMCTL table epva_hwvipstat, which, if under HW-SYN-Cookie mode, everything will be validated automatically by FPGA instead.

You might also notice hwalgo_invalid, if the FPGA used
the updated secret for SYN-Cookie generation from the hypervisor, and when guest and hypervisor secret index overlaps.

Even though guest and hypervisor secret index might not be the same, the history secret might be updated by hypervisor, which might trigger additional hwalgo_accept.

Under vCMP mirroring, however, the packet (failed to validate by FPGA), is sent to the remote TMM, which does not have the correct secret to validate, so the error rate could be higher.

Workaround:
On the vCMP hypervisor, run the following commands.

1. echo "EPVA::enable_secret_diag true" > /config/tmm_init.tcl.
2. bigstart restart TMM.

On a multiple blade system, you must run these commands on all blades.

---

521204-2 : Include default values in XML Policy Export

Component: Application Security Manager

Symptoms:
XML Policy Export does not include some entities, unless their values are different from the system's default settings

Conditions:
ASM provisioned
export security policy in XML format

Impact:
XML Policy Export does not include some entities, unless their values are different from the system's default settings

Workaround:
n/a

---

520877-1 : Alerts sent by the lcdwarn utility are not shown in tmsh

Component: TMOS

Symptoms:
Beginning in BIG-IP version 12.1.0, the 'tmsh show sys alert lcd' command displays the list of alerts sent to the LCD front panel display.

The command-line utility lcdwarn can be used to send alert messages to the LCD front panel display.

Alert messages sent to the LCD front panel display by the lcdwarn utility are not included in the list of alerts shown by the 'tmsh show sys alert lcd' command.

Conditions:
This occurs when using the lcdwarn utility to send alert messages to the LCD front panel display. Such messages are typically sent for testing purposes.

This problem occurs on affected BIG-IP software versions running on all BIG-IP and VIPRION hardware platforms.

Impact:
The 'tmsh show sys alert lcd' command may not include all alert messages sent to the LCD front panel display. Messages sent by the lcdwarn utility are not shown.

Workaround:
None. This is a cosmetic issue.

---

518201-4 : ASM policy creation fails with after upgrading

Component: Application Security Manager

Symptoms:
You cannot create an ASM security policy after upgrading to version 11.6.x. You will see the following error message:
------------------
# tmsh create asm policy /Common/blabla active encoding utf-8
Unexpected Error: ASMConfig exception: [101] Policy 'Security Policy /Common/blabla' already exists in this policy.
------------------

It does not matter if the security policy was created by the command line or by the Configuration utility.

Conditions:
ASM provisioned
Upgrade to 11.6.X

Impact:
ASM policies cannot be created.

Workaround:
Please apply the following workaround, as root user, from the command line of the affected BIG-IP.
Please run these exact commands - copy and paste into the command line:
---------------------
# mysql -uroot -p`perl -MF5::DbUtils -e 'print F5::DbUtils::get_mysql_password(user => qw{root})'` -e 'DELETE FROM PLC.PL_SESSION_AWARENESS_VIOLATIONS WHERE policy_id NOT IN (SELECT id FROM PLC.PL_POLICIES)'
---------------------

Be advised that this operation will permanently affect the mentioned database table.
It is strongly advised to first create a backup of the running configuration by running the following command from the command line of the affected BIG-IP:
---------------------
# tmsh save sys ucs /shared/tmp/backup.ucs
---------------------

Before applying the workaround, first make sure that you indeed need one.
You can do that by running this in the command line:
---------------------
# mysql -uroot -p`perl -MF5::DbUtils -e 'print F5::DbUtils::get_mysql_password(user => qw{root})'` -e 'SELECT * FROM PLC.PL_SESSION_AWARENESS_VIOLATIONS WHERE policy_id NOT IN (SELECT id FROM PLC.PL_POLICIES)'
---------------------
In case this query does not return any output - it means that there is no need to apply the mentioned workaround.

In case you do need to apply the workaround, you can use the same "SELECT *" query to validate the workaround, after it has been applied. Namely, after the workaround was applied, the "SELECT *" query should return no output.

---

509596-1 : iFrames with 'javascript:' scheme in SRC may not work

Component: Access Policy Manager

Symptoms:
Some applications do not work with Portal Access, resulting in an error 'F5_Invoke_write is not defined' on JavaScript Console.

Conditions:
Web application that uses IFrames with 'javascript:' scheme in SRC attribute runs through Portal Access.

Impact:
Web application does not work through Portal Access.

Workaround:
There is no workaround at this time.

---

506543-3 : Disabled ephemeral pool members continue to receive new connections

Component: Local Traffic Manager

Symptoms:
Disabled ephemeral pool members continue to be selected for new connections.

Conditions:
FQDN parent node is disabled causing its derived ephemeral pool members to be marked disabled.

Impact:
Unexpected traffic load balanced to disabled pool members

Workaround:
None.

---

503842-2 : MS WebService html component doesn't work after rewriting

Component: Access Policy Manager

Symptoms:
MS webservice.htc component provides javascript interface for SOAP services for Internet Explorer. It stops working after rewriting through reverse proxy.

Conditions:
It works with F5CH=I, and other html components are working through APM too. That means that the issue is with something we change in this file.

Impact:
MS WebService component stops working.

Workaround:
---
when HTTP_REQUEST {
  # Downgrade IE compatibility mode
  set downgrade_ie_compat 0
  if { [HTTP::path] contains "PreviewQualitySheet.aspx" } {
    set UAString [string tolower [HTTP::header User-Agent]]
    if { ! ($UAString contains "msie 8.") and ! ($UAString contains "msie 7.")} {
      set downgrade_ie_compat 8
    }
  }
  # do not rewrite WebService HTML Component
  # because IE ignores it after rewriting.
  # patching a few things manually instead
  set ms_webservice_fix 0
  if { [HTTP::uri] ends_with "webservice.htc"} {
    set ms_webservice_fix 1
    HTTP::uri "[HTTP::uri]?F5CH=I"
    if { [HTTP::version] eq "1.1" } {
      if { [HTTP::header is_keepalive] } {
        HTTP::header replace "Connection" "Keep-Alive"
      }
      HTTP::version "1.0"
    }
  }
}
when HTTP_RESPONSE {
  if { $downgrade_ie_compat > 0 && ! [HTTP::header exists X-UA-Compatible] } {
    HTTP::header replace "X-UA-Compatible" "IE=$downgrade_ie_compat"
  }
  if { $ms_webservice_fix == 1 } {
    if { [HTTP::header exists "Content-Length"] and \
        [HTTP::header "Content-Length"] > 0 and \
        [HTTP::header "Content-Length"] <= 1048576 } {
      HTTP::collect [HTTP::header Content-Length]
    } else {
      HTTP::collect 1048576
    }
  }
}
when HTTP_RESPONSE_DATA {
  if { $ms_webservice_fix == 1 } {
    set location [string first \
        {if (co.userName == null)} \
        [HTTP::payload]]
    if { $location > 0 } {
      HTTP::payload replace $location 0 {loc=F5_WrapURL(loc);}
    }
  }
  HTTP::release
}

---

499404-5 : FastL4 does not honor the MSS override value in the FastL4 profile with syncookies

Component: Local Traffic Manager

Symptoms:
FastL4 does not honor the MSS override value in the FastL4 profile when syncookies are in use. This can lead to cases where the advertised MSS value in the SYN/ACK is larger than the MSS override value.

Conditions:
The FastL4 profile specifies a non-zero MSS override value and syncookies mode is active.

Impact:
The wrong MSS value is advertised during 3WHS.

Workaround:
None.

---

494135-1 : HTML Event handlers may not work if 'eval' is redefined

Component: Access Policy Manager

Symptoms:
If 'eval' JavaScript call is redefined in HTML page, event handlers may not work correctly.

Conditions:
There may be many ways to re-define 'eval'. For example:

<form>
<button name=eval onclick="someFunction();">Button</button>
</form>

In this case 'onclick' event handler will not work through Portal Access.

Impact:
Web application may not work correctly. In the worst case scenario, the browser (Internet Explorer 9 or later) may crash.

Workaround:
There is no workaround at this time.

---

488686-3 : Large file transfer hangs when HTTP is in passthrough mode

Component: Local Traffic Manager

Symptoms:
Large file transfer hangs when HTTP is in passthrough mode. HTTP could go into passthrough mode through enforcement, iRule, unknown method detection or switching protocols.

Conditions:
Large file transfer is attempted and HTTP goes into passthrough mode.

Impact:
File transfer hangs.

---

486735-5 : Maximum connections is not accurate when TMM load is uneven

Component: Local Traffic Manager

Symptoms:
Maximum connections is not accurate when TMM load is unevenly distributed. Maximum connection statistics report the sum of maximum connections per TMM, not the maximum connections virtual server.

Conditions:
This occurs when the load disaggregated to available TMMs is uneven.

Impact:
This causes the various TMMs to measure their individual maximum connections at significantly different times, resulting in higher-than-expected maximum connections.

Workaround:
Ensure the configuration matches traffic patterns, so the load of connections is evenly distributed across all TMMs.

---

483953-1 : Cached route MTUs may be set to the value of TM.MinPathMTU even if the path MTU is lower than that value.

Component: Local Traffic Manager

Symptoms:
ICMP type 3 code 4 (needsfrag) messages are elicited when TMM transmits packets at the TM.MinPathMTU size if the path MTU is lower than that value.

Conditions:
Path MTU discovery results are cached by default. If a client responds to an IP datagram with an ICMP needsfrag message with a very small MTU (smaller than the value of the TM.MinPathMTU database variable), the cached path MTU value will be set to the TM.MinPathMTU value even though this still isn't able to traverse the path.

This can affect multiple endpoints when a low MTU is advertised by an endpoint (misconfigured or malicious) behind a shared NAT address.

Impact:
TMM may use and enforce a low path MTU for clients capable of handling a higher path MTU, but may use an MTU too high to reach clients whose path MTU is lower than TM.MinPathMTU.

This metric will live for 10 minutes by default.

Workaround:
This issue has no workaround at this time.
The route metric lifetime can be lowered using route.metrics.timeout db key.

---

482625-1 : Pages with utf-8 Content-Type and utf-16 META tag do not render

Component: Access Policy Manager

Symptoms:
Some pages cannot be displayed. A page has a Content-type header with charset utf-8. The payload has a META tag with charset utf-16. Actual data appears to be utf-8. Rewriting the page inserts a utf-16 BOM in the response, causing the page to not load.

Conditions:
Pages that contain utf-8 Content-Type headers but utf-16 META tags

Impact:
Web-application cannot display some pages.

Workaround:
An iRule can be used to fix the META charset and allow the page to load.

---

472860-5 : RADIUS session statistics for the subscribers created with an iRule running on the RADIUS virtual server are not incremented.

Component: Policy Enforcement Manager

Symptoms:
The RADIUS session statistics for the subscribers created with an iRule running on the RADIUS virtual server are not incremented.

Conditions:
Session created via iRule running on the RADIUS virtual server.

Impact:
RADIUS session statistics are not incremented.

Workaround:
None.

---

471029-2 : If the configuration contains a filename with the $ character, then saving the UCS through TMSH fails.

Component: TMOS

Symptoms:
If the configuration contains a filename with the $ character, then saving the UCS through TMSH fails. The filenames in the user configuration can contain $ character. Examples of filenames include cm cert cache-path and cm key cache-path.

tmsh save sys ucs <ucs-id> fails for such configuration.

The error displayed appears similar to the following.:
Fatal: executing: md5sum /var/tmp/filestore_temp/files_d/Common_d/certificate_d/:Common:?><.crt_53783_1
Operation aborted.
/var/tmp/configsync.spec: Error creating package.

Conditions:
Filenames in configuration contain $ character in cm cert cache-path or cm key cache-path, for example.

Impact:
tmsh save sys ucs <ucs-id> fails.

Workaround:
Do not use the $ character as part of the filenames in the configuration.

---

469366-3 : ConfigSync might fail with modified system-supplied profiles

Component: TMOS

Symptoms:
A config sync operation might fail with a parent-profile-not-found error message, despite the fact that the parent profile is present in the running configuration of both systems.

Conditions:
On the sync target (the system receiving the configuration, and the one that reports a sync failure), a system-supplied profile (e.g. /Common/serverssl) has been modified, and is present in /config/bigip.conf.

Impact:
An administrator is unable to synchronize system configurations. The system might post messages similar to the following example: '01020036:3: The requested parent profile (/Common/serverssl) was not found.'

Workaround:
One of the following: 1. Manually replicate the changes on the base profile to the system that is sourcing the config sync.
2. Undo the changes to the base profile on the system that is receiving the config sync (to do so, save the configuration, manually remove the base profile from /config/bigip.conf, and then re-load the configuration), and then perform a force sync operation. 3. Perform a sync in the other direction.
Important: Performing a sync in this direction overrides any unsync'd changes on the other system.

---

464801-3 : Intermittent tmm core

Component: Local Traffic Manager

Symptoms:
tmm intermittently cores. Stack trace signature indicates "packet is locked by a driver"

Impact:
Traffic disrupted while tmm restarts.

---

460833-9 : MCPD sync errors and restart after multiple modifications to file object in chassis

Component: TMOS

Symptoms:
Upon modifying file objects on a VIPRION chassis and synchronizing those changes to another VIPRION chassis in a device sync group, the following symptoms may occur:

1. Errors are logged to /var/log/ltm similar to the following:

err mcpd[<#>]: 0107134b:3: (rsync: link_stat "/config/filestore/.snapshots_d/<_additional_path_to/_affected_file_object_>" (in csync) failed: No such file or directory (2) ) errno(0) errstr().
err mcpd[<#>]: 0107134b:3: (rsync error: some files could not be transferred (code 23) at main.c(1298) [receiver=2.6.8] syncer /usr/bin/rsync failed! (5888) () Couldn't rsync files for mcpd. ) errno(0) errstr().
err mcpd[<#>]: 0107134b:3: (rsync process failed.) errno(255) errstr().
err mcpd[<#>]: 01070712:3: Caught configuration exception (0), Failed to sync files..

2. MCPD may restart on a secondary blade in a VIPRION chassis that is receiving the configuration sync from the chassis where the file object changes were made.

Conditions:
This symptom may occur under the following conditions:

1. Two or more VIPRION chassis are configured in a device sync group.
2. File objects (such as SSL certificates) are added/modified/deleted on one chassis in the group.
3. These changes are synchronized to other members of the device sync group.
4. While the previous changes are still being synchronized to all blades in all chassis in the device sync group, an overlapping set of file objects are added/modified/deleted on a chassis in the group (typically the same chassis as in step 2).
5. While the previous sync operation is still in progress, these subsequent changes are synchronized to other members of the device sync group.

Impact:
Temporary loss of functionality, including interruption in traffic, on one or more secondary blades in one or more VIPRION chassis that are receiving the configuration sync.

Workaround:
After performing one set of file-object modifications and synchronizing those changes to the HA group members, wait for one or more minutes to allow all changes to be synchronized to all blades in all member chassis before making and synchronizing additional file-object changes.

---

459671-4 : iRules source different procs from different partitions and executes the incorrect proc.

Component: Local Traffic Manager

Symptoms:
iRules source different procs from different partitions and executes the incorrect proc.

Conditions:
Multiple iRule procs defined in multiple admin partitions.

Impact:
iRules "proc" lookup algorithm is not deterministic, or Virtual Servers are improperly caching and sharing the lookup results.

Workaround:
To work around this issue, ensure all iRule proc names defined in the BIG-IP configuration are unique.

---

450136-3 : Occasionally customers see chunk boundaries as part of HTTP response

Component: Access Policy Manager

Symptoms:
Occasionally, users see chunk boundaries as part of HTTP response if the virtual server is configured with rewrite profile variant and some other profiles.

Conditions:
Virtual server with rewrite profile variant and some other profiles like OneConnect and NTLM could cause HTTP response to be double-chunked.

Impact:
End users may see random characters displayed on their web pages, or the page may fail to render because it contains invalid HTML markup.

Workaround:
To workaround this problem, use an iRule to rechunk the HTTP response always.

---

442231-4 : Pendsect log entries have an unexpected severity

Component: TMOS

Symptoms:
Pendsect logs non-errors with a 'warning' severity.

Conditions:
This occurs when pendsect is executed.

Impact:
Unexpected log entries. When pendsect is executed and does not find any disk errors, it logs the following at the warning level: warning pendsect[21788]: pendsect: /dev/sdb no Pending Sectors detected. This is not an error. The message is posted at the incorrect severity level and does not indicate a problem with the BIG-IP system.

Workaround:
None needed. This is cosmetic.

---

441079-3 : BIG-IP 2000/4000: Source port on NAT connections are modified when they should be preserved

Component: Local Traffic Manager

Symptoms:
The BIG-IP system is modifying the source port on NAT connections.

Conditions:
This occurs when NAT is configured on the BIG-IP system. This occurs on BIG-IP 2000/4000 hardware platforms.

Impact:
This impacts any applications where the source port is expected to be preserved.

Workaround:
None.

---

434573-6 : Tmsh 'show sys hardware' displays Platform ID instead of platform name

Component: TMOS

Symptoms:
While running a version of BIG-IP older than the most recent release on a new hardware platform (recently purchased or recently acquired through RMA exchange), the 'tmsh show sys hardware' command may display the Platform ID code in place of the official F5 platform name.

For example, the 'tmsh show sys hardware' command may display a Platform ID like the following:

Platform
  Name D113

instead of the official platform marketing name, such as:

Platform
  Name BIG-IP 10000F

Conditions:
This may occur if the version of BIG-IP software installed is not the most recent release, and the hardware platform is a newer variant (due to added hardware features or other manufacturing change) than was originally supported by the older BIG-IP software release.

Impact:
Custom automation scripts which depend on correctly matching F5 platform marketing names may fail to match the platform ID.

Workaround:
Update platform-identification scripts to include the relevant platform IDs among the recognized match values.

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433357 : Management NIC speed reported as 'none'

Component: TMOS

Symptoms:
Sometimes,after mcpd get restarted, mcpd didn't get management port nic speed information from chmand, "tmsh show net interface" could shows the speed of mgmt interface as "none".

Conditions:
Management interface is up and then restart mcpd.

Impact:
"tmsh show net interface" commands can't show correct management speed.

Workaround:
Use "bigstart restart chmand" to restart chmand.

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431480-1 : Under rare conditions, the TMM process may produce a core file and restart upon failover, with the Assertion 'laddr is not NULL' error message

Component: Local Traffic Manager

Symptoms:
Occasionally, you might encounter a situation in which tmm dumps a core, and the system writes to the logs a message similar to the following: notice panic: ../base/listener.c:1116: Assertion 'laddr is not NULL' failed.

Conditions:
The exact conditions that result in this error are unknown.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
This issue has no workaround at this time, but the system recovers without any user action.

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424542-5 : tmsh modify net interface with invalid interface name or attributes will create an interface in cluster or VE environments

Component: TMOS

Symptoms:
tmsh modify net interface commands with either invalid interface names, or invalid attribute names will appear to create new interfaces.
An invalid interface will show up in "show net interfaces"

Conditions:
Only happens on clustered or virtual environments, not on appliances.

Impact:
Cosmetic only - extraneous interfaces show up in tmsh show net interface.

Workaround:
guishell -c "delete from interface where name='12345/is_this_correct'"

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423392-6 : tcl_platform is no longer in the static:: namespace

Component: Local Traffic Manager

Symptoms:
In previous versions of iRules, the variable tcl_platform was readable as: 'set myvar static::tcl_platform'. However with recent changes, the variable is in the global, not static namespace and should be accessed as '::tcl_platform'.

Conditions:
This occurs on pre-11.4.0 iRules that use the variable 'static::tcl_platform'.

Impact:
iRules that worked properly under earlier versions can result in runtime Tcl exceptions (disrupting traffic) after an upgrade to v11.4.0 or later, if those iRules reference static::tcl_platform.

Workaround:
To map tcl_platform into the static namespace in an iRule, use the following: when RULE_INIT { upvar #0 tcl_platform static::tcl_platform }. Or you can use ::tcl_platform instead of static::tcl_platform. Note: The latter workaround might demote a virtual server from CMP. For more information, see SOL14544: The tcl_platform iRules variable is not in the static:: namespace, available here: http://support.f5.com/kb/en-us/solutions/public/14000/500/sol14544.html.

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422460-23 : TMM may restart on startup/config-load if it has too many objects to publish back during config load

Component: TMOS

Symptoms:
TMM restarts without any core file on startup or when mcpd is loading the configuration if the size of configuration is considered big (for example over 1000 passive monitors).

Conditions:
This issue occurs when all of the following conditions are met:
-- The mcpd process loads a large configuration with thousands of objects.
-- The platform is running 12 or more TMM instances (BIG-IP 11000, 11050 platform, or VIPRION B4300 blade).

Impact:
Traffic processed by the affected TMM instance is interrupted while TMM restarts. TMM might enter a restart loop and restart multiple times, without producing a core file. You might see errors similar to the following in log/tmm or log/daemon:
-- LTM01 crit tmm11[28599]: 01010020:2: MCP Connection aborted, exiting. -- LTM01 emerg logger: Re-starting tmm. This might cause serious traffic disruption.

Workaround:
This workaround is a mitigation and may not work in all cases; the zero-window timeout may need to be adjusted to a higher value for some configurations.

To work around this issue, increase the timeout used for the MCP connection.

1. Open the tmm_base.tcl file for modification.
2. Locate the tcp _mcptcp stanza.
3. Add the following line:
   zero_window_timeout 300000

This lengthens the timeout, which avoids the restart. For more information, see SOL14498: The mcpd connection to TMM may time out on either startup or configuration load and cause TMM to restart, available here: http://support.f5.com/kb/en-us/solutions/public/14000/400/sol14498.html.

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412817-2 : BIG-IP system unreachable for IPv6 traffic via PCI pass-through interfaces as current ixgbevf drivers do not support multicast receive.

Component: TMOS

Symptoms:
The BIG-IP system is unreachable for IPv6 traffic via PCI pass-through interfaces, because current ixgbevf drivers do not support multicast receive.

Conditions:
When configured to see IPv6 traffic on a PCI pass-through interface, the BIG-IP guest is not able to see this traffic.

Impact:
PCI pass-through interfaces are unable to see IPv6 traffic.

Workaround:
None.

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405898-2 : If the OSPF derived MTU is different from the path MTU, OSPF may not function as expected

Component: Local Traffic Manager

Symptoms:
If the maximum transmission unit (MTU) for a network running OSPF is different from ZebOS, or if its neighbor router has configured for its interface MTU, OSPF adjacencies may not form, or some datagrams may be rejected.

Conditions:
TMM has cached a reduced path MTU for a network that is smaller than the configured MTU of the interface. OSPF running on that interface.

Impact:
OSPF adjacencies never fully form and routes are not exchanged.

Workaround:
Restarting TMM clears the cached maximum transmission unit (MTU), and allowing all interface MTUs to function with default values should prevent a mismatch.

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400778 : Message: err chmand[5011]: 012a0003:3: Physical disk CF1/HD1 not found for logical disk delete

Component: TMOS

Symptoms:
On a VIPRION system during failover in which the blade transitioning from secondary to primary, log messages make it appear that chmand is looking to delete logical disks on CF1 and HD1.

Conditions:
This occurs on VIPRION systems.

Impact:
The ltm log displays messages: -- err chmand[6909]: 012a0003:3: Physical disk CF1 not found for logical disk delete'. -- err chmand[6909]: 012a0003:3: Physical disk HD1 not found for logical disk delete'.

Workaround:
None. These messages are benign and you can safely ignore them.

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400550 : LCD listener error during shutdown

Component: TMOS

Symptoms:
During shutdown you see this error message: 012a0004:4: LCD listener write to LCDd exception: Psuedo Terminal: File I/O Error [Bad file descriptor] at PseudoTermDev.cpp:93

Conditions:
This can occur when shutting down a blade on a VIPRION 4400 platform.

Impact:
This occurs on shutdown and is cosmetic, and can be ignored.

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393270-1 : Configuration utility may become non-responsive or fail to load.

Component: TMOS

Symptoms:
While doing normal operations via the configuration utility, the status indicators may become non-responsive or fail to load, the GUI could become very sluggish, and you could be unable to load the GUI, or you could be taken to the license activation screen.

Conditions:
This has been reported most frequently when deleting local users (Access Policy :: Local User DB : Manage Users), but has been encountered in other ways. The issue might require deleting a user and then remaining on the Manage Users page until an internal timeout of approximately 10 minutes passes.

Impact:
Unable to log into the GUI or GUI shows blank page

Workaround:
Run the command 'bigstart restart tomcat' or reboot the BIG-IP system.

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375434-6 : HSB lockup might occur when TMM tries unsuccessfully to reset HSB.

Component: TMOS

Symptoms:
An HSB lockup might occur when the TMM driver tries to reset HSB and the effort is not successful. After several failed attempts, a bad DMA packet causes tmm to crash. This failure can also result in a "DMA lockup on transmitter failure" reported in the TMM log files.

Conditions:
This occurs on HSB platforms that have AMD processors, which include the BIG-IP 6900, 8900, 8950, 11000, and 11050N platforms, and the VIPRION B4200 and B4200N blades.

Impact:
The HSB is non-functional and requires reinitialization. This occurs after the BIG-IP is rebooted, which is automatically triggered when this condition occurs.

Workaround:
None.

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374067-7 : Using CLIENT_ACCEPTED iRule to set SNAT pool on OneConnect virtual server interferes with keepalive connections

Component: Local Traffic Manager

Symptoms:
Using the 'snatpool' command in the CLIENT_ACCEPTED iRule event causes keepalive requests to originate from the self-IP of the BIG-IP system.

Conditions:
An iRule using the 'snatpool' command in CLIENT_ACCEPTED.

Impact:
Keepalive connections occasionally source from the BIG-IP system's self-IP address.

Workaround:
Use the HTTP_REQUEST event to set the SNAT pool.

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371164-1 : BIG-IP sends ND probes for all masquerading MAC addresses on all VLANs, so MAC might associated with multiple VLANs.

Component: Local Traffic Manager

Symptoms:
Since traffic groups are not bound to any specific VLAN, so Neighbor Discovery (ND) for link-local addresses go out on all VLANs. This occurs because traffic groups are not bound to any particular VLAN or interface. Since MAC is bound to the traffic group, it is not bounded to particular VLAN either.

Conditions:
Using MAC masquerade addresses on VLANs. TMM creates new link-local address for each masquerading MAC. Thus, the same link-local address might be used on all interfaces, which means that the system might use the same MAC on different VLANs.

For example, in the following configuration, you might expect that traffic-group-1 and MAC 02:23:e9:74:e2:c4 are bound only to VLAN Internal. However, you can create another self IP address, assign it to different VLANs or route domains, and have them be part of the same traffic group. A traffic group is about availability and not about routing or partitioning.


Configuration
===========
net self 10.10.10.10%1 {
    address 10.10.10.10%1/23
    allow-service {
        default
    }
    floating enabled
    traffic-group traffic-group-1
    unit 1
    vlan Internal
}.

Impact:
Although this is intended functionality, some users might not expect the behavior. BIG-IP sends ND probes for all masquerading addresses on all VLANs. Although switches typically build up forwarding tables per VLAN, there are some switches that might not correctly, which results in failure to forward packets as expected. That might impact other traffic, including IPv4.

Workaround:
Set the db variable tm.macmasqaddr_per_vlan to True. This ensures that a single source MAC is associated with a single VLAN ID, and is guaranteed to be unique per VLAN.

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370131-4 : Loading UCS with low GTM Autoconf Delay drops pool Members from config

Component: Global Traffic Manager

Symptoms:
Pool members loaded from the UCS are not in the configuration. If there are objects dependent on them, this may prevent the GTM config from loading completely.

Conditions:
GTM and LTM are enabled, Autoconf Delay is very low, there are GTM autoconfigured pool members from LTM virtual servers, and subsequently a UCS is loaded.

Impact:
GTM config loaded from the UCS might be overwritten and Pool Members might be lost from it.

Workaround:
bigstart stop gtmd during UCS load, or set the autoconf delay to be much higher than the time required to load the UCS.

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369407-3 : Access policy objects are created inconsistently depending on whether created using wizard or manually.

Component: Access Policy Manager

Symptoms:
Network Access (NA) wizard policy incorrectly labels 'Advanced Resource Assign' as 'Resource Assign' in VPE.

Conditions:
This is evident when viewing the label following completion of the NA wizard.

Impact:
The label in the VPE is 'Resource Assign', where it should be 'Advanced Resource Assign'.

Workaround:
None.

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367226-2 : Outgoing RIP advertisements may have incorrect source port

Component: Local Traffic Manager

Symptoms:
TMM may change the source port of RIP packets send by ripd to something other than 520. Neighbor routers will not accept these packets and RIP routing will not work.

If the TMM instance handling the outgoing packet would not be selected to handle return traffic by the hashing algorithm in use, the source port of the traffic will be modified so the hashing algorithm returns the same TMM instance.

Conditions:
Multiple TMM instances, RIP routing configured.

Impact:
Dynamic routing using RIP will not work if the traffic hash of the packets does not match the TMM handling the outgoing traffic.

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238444-3 : An L4 ACL has no effect when a layered virtual server is used.

Component: Access Policy Manager

Symptoms:
A layer 4 ACL is not applied to the network access tunnel. As a result of this issue, you may encounter the following symptoms:

Unexpected network traffic may be allowed to pass.
Expected network traffic may be blocked.

Conditions:
This issue occurs when the following conditions are met:

-- The APM virtual server is targeting a layered virtual server, such as an SSO layered virtual server.
-- The referenced BIG-IP APM access policy is configured with a layer 4 ACL.
-- When an ACL is applied to a BIG-IP APM access policy, the access policy dynamically creates an internal layered virtual server that is used to apply the ACL. However, if the BIG-IP APM virtual server targets a layered virtual server, such as an SSO layered virtual server, traffic bypasses the dynamically-created internal layered virtual server and the ACL is not applied.

Impact:
Access control using a layer 4 ACL will not work. This may allow unwanted traffic to pass, or can block valid traffic.

Workaround:
None. However, a layer 7 ACL may be implemented if the network traffic is HTTP.

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225634-1 : The rate class feature does not honor the Burst Size setting.

Component: Local Traffic Manager

Symptoms:
The rate class feature does not honor a Burst Size setting other than the default of 0 (zero).

The Burst Size setting is intended to specify the maximum number of bytes that traffic is allowed to burst beyond the base rate configured for the rate class. When the burst rate is set to zero, no bursting is allowed.

Conditions:
When using a non-default Burst Size setting for a single rate class, the setting does not have the intended effect of allowing traffic to burst beyond the base rate configured for the rate class. When using a non-default Burst Size setting for a rate class referencing a hierarchical rate class (a child class referencing a parent class), traffic processed by the rate class may cause TMM to panic and generate a core file.

Impact:
Traffic does not burst beyond the base rate configured for the rate class. In the case of hierarchical rate classes, the BIG-IP may temporarily fail to process traffic.

Workaround:
To work around this issue, you can disable the Burst Size setting by changing the value to zero. To do so, perform the following procedure:

Impact of workaround: None.

Log in to the Configuration utility.
Click Network.
Click Rate Shaping.
Click the appropriate rate class.
Change the Burst Size to 0.
Click Update.

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★ This issue may cause the configuration to fail to load or may significantly impact system performance after upgrade