Dell Force10 S25N-S50N FTOS Configuration Guide FTOS 8.4.2.7 E-Series TeraScal - Page 149

Step 3 Task View the number of packets matching the ACL using the show ip accounting access-list from EXEC Privilege mode. Configuring Ingress ACLs Ingress ACLs are applied to interfaces and to traffic entering the system.These system-wide ACLs eliminate the need to apply ACLs onto each interface and achieves the same results. By localizing target traffic, it is a simpler implementation. To create an ingress ACLs, use the ip access-group command (Figure 233) in the EXEC Privilege mode. This example also shows applying the ACL, applying rules to the newly created access group, and viewing the access list: Figure 8-10. Creating an Ingress ACL FTOS(conf)#interface gige 0/0 FTOS(conf-if-gige0/0)#ip access-group abcd in FTOS(conf-if-gige0/0)#show config ! gigethernet 0/0 no ip address ip access-group abcd in no shutdown FTOS(conf-if-gige0/0)#end FTOS#configure terminal FTOS(conf)#ip access-list extended abcd FTOS(config-ext-nacl)#permit tcp any any FTOS(config-ext-nacl)#deny icmp any any FTOS(config-ext-nacl)#permit 1.1.1.2 FTOS(config-ext-nacl)#end FTOS#show ip accounting access-list ! Extended Ingress IP access list abcd on gigethernet 0/0 seq 5 permit tcp any any seq 10 deny icmp any any permit 1.1.1.2 Use the "in" keyword to specify ingress. Begin applying rules to the ACL named "abcd." View the access-list. Configuring Egress ACLs e Layer 2 and Layer 3 ACLs are supported on platform Egress ACLs are applied to line cards and affect the traffic leaving the system. Configuring egress ACLs onto physical interfaces protects the system infrastructure from attack-malicious and incidental-by explicitly allowing only authorized traffic.These system-wide ACLs eliminate the need to apply ACLs onto each interface and achieves the same results. By localizing target traffic, it is a simpler implementation. IP Access Control Lists (ACL), Prefix Lists, and Route-maps | 149