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Dell PowerEdge FN I/O Module Configuration Guide 9.10(0.0)

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Configure 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 ACL, use the ip access-group command in EXEC Privilege mode. The example shows applying the ACL, rules to the newly created access group, and viewing the access list.

Example of Applying ACL Rules to Ingress Traffic and Viewing ACL Configuration

To specify ingress, use the in keyword. Begin applying rules to the ACL with the ip access-list extended abcd command. To view the access-list, use the show command. 

Dell(conf)#interface tengig 0/0
                                 Dell(conf-if-tengig0/0)#ip access-group abcd 
                                 in
                                 Dell(conf-if-tengig0/0)#show config
                                 !
                                 tengigethernet 0/0
                                 no ip address
                                 ip access-group abcd in
                                 no shutdown
                                 Dell(conf-if-tengig0/0)#end
                                 Dell#configure terminal
                                 Dell(conf)#ip access-list extended 
                                 abcd
                                 Dell(conf-ext-nacl)#permit tcp any any
                                 Dell(conf-ext-nacl)#deny icmp any any
                                 Dell(conf-ext-nacl)#permit 1.1.1.2
                                 Dell(conf-ext-nacl)#end
                                 Dell#
                                 show ip accounting access-list
                                 !
                                 Extended Ingress IP access list abcd on tengigethernet 0/0
                                 seq 5 permit tcp any any
                                 seq 10 deny icmp any any
                                 seq 15 permit 1.1.1.2

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