Manual Chapter : Assign a protocol inspection profile to a firewall rule
Applies To:Show Versions
- 17.1.0, 17.0.0, 16.1.3, 16.1.2, 16.1.1, 16.1.0, 16.0.1, 16.0.0, 15.1.8, 15.1.7, 15.1.6, 15.1.5, 15.1.4, 15.1.3, 15.1.2, 15.1.1, 15.1.0
Assign a protocol inspection profile to
a firewall rule
This task requires an existing network firewall policy.
Assign protocol inspection to a firewall rule to check protocol inspection items on traffic that matches the rule.
- On the Main tab, click.The Policies screen opens.
- Click the name of a firewall policy to edit that policy.The Firewall Policy screen opens, or the policy expands on the screen.
- ClickAdd Ruleto add a firewall rule to the policy.A blank rule appears in the policy.
- In theNamecolumn, type the name and an optional description in the fields.
- From theStatelist, select the rule state.
- SelectEnabledto apply the firewall rule to the given context and addresses.
- SelectDisabledto set the firewall rule to not apply at all.
- SelectScheduledto apply the firewall rule according to the selected schedule.
- From theProtocollist, select the protocol to which the firewall rule applies.
ICMP is handled by the BIG-IP system at the global or route domain level. Because of this, ICMP messages receive a response before they reach the virtual server context. You cannot create rule for ICMP or ICMPv6 on a self IP or virtual server context. You can apply a rule list to a self IP or virtual server that includes a rule for ICMP or ICMPv6; however, such a rule will be ignored. To apply firewall actions to the ICMP protocol, create a rule with theglobalorroute domaincontext. ICMP rules are evaluated only for ICMP forwarding requests, and not for the IP addresses of the BIG-IP system itself.
- SelectAnyto apply the firewall rule to any protocol.
- Select the protocol name to apply the rule to a single protocol.
- In theSourcefield, specify the addresses and ports that the rule should match.You can type an IP address, a contiguous range of IP addresses, an IP subnet, a port, a range of ports, a geographic location, a subscriber or subscriber group, an address list, or port list. After you complete an entry, clickAdd.You cannot specify a mix of IPv6 and IPv4 address types in a single NAT rule.
- In theDestinationfield, begin typing to specify a destination address.As you type, options will appear that match your input. Select the destination option you want to use when it appears, or press Return. You can add more addresses by typing in the field labeledadd new destination.A destination address can be any of the following:
- Any address
- IPv4 or IPv6 address
- IPv4 or IPv6 address range
- Geographic location
- Address list
- Port range
- Port list
- Address list
- From theActionlist, select the firewall action for traffic originating from the specified source address on the specified protocol. Choose from one of the these actions:AcceptAllows packets with the specified source, destination, and protocol to pass through the firewall. Packets that match the rule, and are accepted, traverse the system as if the firewall is not present.DropDrops packets with the specified source, destination, and protocol. Dropping a packet is a silent action with no notification to the source or destination systems. Dropping the packet causes the connection to be retried until the retry threshold is reached.RejectRejects packets with the specified source, destination, and protocol. When a packet is rejected the firewall sends a destination unreachable message to the sender.Accept DecisivelyAllows packets with the specified source, destination, and protocol to pass through the firewall, and does not require any further processing by any of the further firewalls. Packets that match the rule, and are accepted, traverse the system as if the firewall is not present.
- Optionally, to apply an iRule to traffic matched by this rule, from theiRulelist, select an iRule.
- Optionally, to send traffic matched by this rule to a specific virtual server, from theSend to Virtuallist, select the virtual server.Traffic that is sent to a virtual server is processed according to the DDoS rules and firewall rules on that virtual server, not according to the originating context.
- To apply custom timeouts or port misuse profiles to flows that match this rule, from theService Policyfield, specify a service policy.
- To apply a protocol inspection profile to check protocol inspection signatures against traffic that matches the rule, select a Protocol Inspection Profile.
- To apply a classification policy to traffic that matches the rule, select a Classification Policy.
- ClickDone Editing.
- ClickCommit Changes to System.The policy with the updated rule is displayed.
A firewall rule is created with a Protocol Inspection Profile attached.