To create an egress ACL, use the ip access-group command in EXEC Privilege mode. The example shows viewing the configuration,applying rules to the newly created access group, and viewing the access list.NOTE: VRF based ACL configurations are not supported on the egresstraffic.Example of Applying ACL Rules to Egress Traffic and Viewing ACL ConfigurationTo specify ingress, use the out keyword. Begin applying rules to the ACL with the ip access-list extended abcd command. Toview the access-list, use the show command.Dell(conf)#interface TenGigabitEthernet 1/1Dell(conf-if-te-1/1)#ip access-group abcd outDell(conf-if-te-1/1)#show config!TenGigabitEthernet 1/1no ip addressip access-group abcd outno shutdownDell(conf-if-te-1/1)#endDell#configure terminalDell(conf)#ip access-list extended abcdDell(config-ext-nacl)#permit tcp any anyDell(config-ext-nacl)#deny icmp any anyDell(config-ext-nacl)#permit 1.1.1.2Dell(config-ext-nacl)#endDell#show ip accounting access-list!Extended Ingress IP access list abcd on tengigabitethernet 0/0seq 5 permit tcp any anyseq 10 deny icmp any anyseq 15 permit 1.1.1.2Dell#configure terminalDell(conf)#interface te 1/2Dell(conf-if-te-1/2)#ip vrf forwarding blueDell(conf-if-te-1/2)#show config!interface TenGigabitEthernet 1/2ip vrf forwarding blueno ip addressshutdownDell(conf-if-te-1/2)#Dell(conf-if-te-1/2)#Dell(conf-if-te-1/2)#endDell#Applying Egress Layer 3 ACLs (Control-Plane)By default, packets originated from the system are not filtered by egress ACLs.For example, if you initiate a ping session from the system and apply an egress ACL to block this type of traffic on the interface, the ACLdoes not affect that ping traffic. The Control Plane Egress Layer 3 ACL feature enhances IP reachability debugging by implementingcontrol-plane ACLs for CPU-generated and CPU-forwarded traffic. Using permit rules with the count option, you can track on a per-flowbasis whether CPU-generated and CPU-forwarded packets were transmitted successfully.NOTE: The ip control-plane [egress filter] and the ipv6 control-plane [egress filter] commands arenot supported.1 Apply Egress ACLs to IPv4 system traffic.CONFIGURATION modeip control-plane [egress filter]2 Apply Egress ACLs to IPv6 system traffic.128 Access Control Lists (ACLs)
