Release Notes : BIG-IP Edge Client for iOS 2.0.5

Applies To:

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  • 11.5.3, 11.5.2, 11.5.1, 11.2.1
Release Notes
Original Publication Date: 10/31/2018 Updated Date: 04/18/2019


In June 2015, Apple posted the release of the iOS Edge Client version 2.0.5. Users should download this new version from the app store.


User documentation for this release

For a comprehensive list of documentation that is relevant to this release, refer to the following pages:

Features and enhancements in 2.0.5

ID number Description
383588 Edge Client now displays a diagnostics section that provides details on system and network information.
481019 Edge Client now supports widgets with iOS 8. User can quickly start VPN connections and connect to Edge Client.
483260 The Edge Client UI now supports iPhone 6 and iPhone 6 Plus devices.
487389 The client logs now displays session ID information to correlate with the server logs.
505302 Users can now access information such as VPN scope, tunnel type, and start type as session variables. The following session variables and their possible values are displayed below:
  • session.client.vpn_scope - "device" or "per-app"
  • session.client.vpn_tunnel_type - "L3" or "L4"
  • session.client.vpn_start_type - "manual", "on-demand"
On iOS systems, the VPN scope is always set to "device," while the tunnel type is always "L4."

Behavior changes in 2.0.5

There are no behavior changes in this release.

Known Issues in 2.0.5

ID number Description
476958 If a fully qualified host is specified in the proxy bypass list, users navigating to the host using the short form make use of the proxy in iOS 7, but this bypasses the proxy on iOS 8. iOS 8 takes into account the DNS suffix for proxy bypass.
519247 When users use a notification widget to connect to a VPN server that contains an untrusted server certificate, Edge Client rejects the connection attempt. Users fail to see a confirmation prompt. To establish a VPN connection using the notification widget, the device must trust the server certificate by default.
518473 On iOS 7, the native iOS sometimes fails to display the changes users made in Edge Client. Use Edge Client instead of
516674 If users configure split tunneling in the network access resource, the "LAN address space" field is marked "required," while the "DNS Address Space" can be left blank. When "DNS Address Space" is left blank, Edge Client fails to pass DNS traffic through the VPN tunnel. To work around this issue, perform the following options:
  • Use an explicit DNS address space
  • Add a default DNS domain suffix
  • Use a full tunnel
512960 When users trigger a VPN-on-Demand connection using Safari, it returns the following error message, Safari cannot open the page because the server cannot be found. This occurs even when users successfully establish the VPN tunnel and the VPN icon displays on the status bar. To work around this issue, refresh the page after establishing the VPN connection.
518576 After users trigger VPN-on-Demand, Safari displays the following error message, Safari could not open the page because the server stopped responding. Users fail to reach the internal resource until they refresh the web page. This only occurs when users try to reach a domain that ends in ".local."

Fixes in 2.0.5

ID number Description
499494 Previously, Edge Client might set an incorrect IPv6 DNS server after establishing a VPN connection. Edge Client now has validation to ensure the IPv6 DNS server values sent from the server are valid before applying them to the system.
491479 Previously, Edge Client used a hard-coded 15 minute timeout to re-establish tunnel connection. If Edge Client could not re-establish a connection to the server within that 15 minute timeout, the client automatically changed to the disconnected state. Edge Client now reconnects its tunnel connection based on the inactivity timeout value configured in the access policy. For on-demand connections, the reconnection timeout is the minimum value between inactivity timeout and on-demand disconnect timeout.
495151 Previously, after users installed Edge Client, the per-app VPN might not trigger on-demand unless the following options were performed:
  • Users rebooted the device
  • Users toggled the "Connect on Demand" switch on and off in
Apple fixed this issue on iOS 8.3.
489485 In earlier versions, Edge Client collected device information when users launched the UI and started a VPN connection from the application. Some device information, however, was not available for on-demand connections unless users made a manual connection from the application. Unavailable device information included session.client.unique_id and session.client.platform_version. This issue is now fixed, and correctly reports device information to the APM server when using the iOS Connect On-Demand and iOS Per App VPN feature.
508385 On iOS 8, Apple’s VPN framework has a behavior change in which the “Never Connect” domains also affect DNS resolution rather than just VPN-on-Demand domain matching. In previous releases of iOS Edge Client, the VPN gateway ( was automatically added to the “Never Connect” domains. Because of that, on iOS 8 (and later), if the backend host names ( overlapped with the VPN gateway, the hostname would not be resolved by the internal DNS servers, even if VPN was already connected. This issue is now fixed; the VPN gateway is not automatically added to the “Never Connect” domains.
513114 Previously, on iOS 7 or later, Edge Client used a hard-coded link local IPv6 address for all devices. Edge Client now allows the server to determine its tunnel link local address for the client.

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