Dell PowerSwitch S4820T Configuration Guide for the S4820T System 9.100.0 - Page 117

• Apply a configured prefix list to outgoing routes. You can specify an interface or type of route. If you enter the name of a non-existent prefix list, all routes are forwarded. CONFIG-ROUTER-RIP mode distribute-list prefix-list-name out [interface | connected | static | ospf] Example of Viewing Configured Prefix Lists (ROUTER RIP mode) To view the configuration, use the show config command in ROUTER RIP mode, or the show running-config rip command in EXEC mode. Dell(conf-router_rip)#show config ! router rip distribute-list prefix juba out network 10.0.0.0 Dell(conf-router_rip)#router ospf 34 Applying a Filter to a Prefix List (OSPF) To apply a filter to routes in open shortest path first (OSPF), use the following commands. • Enter OSPF mode. CONFIGURATION mode router ospf • Apply a configured prefix list to incoming routes. You can specify an interface. If you enter the name of a non-existent prefix list, all routes are forwarded. CONFIG-ROUTER-OSPF mode distribute-list prefix-list-name in [interface] • Apply a configured prefix list to incoming routes. You can specify which type of routes are affected. If you enter the name of a non-existent prefix list, all routes are forwarded. CONFIG-ROUTER-OSPF mode distribute-list prefix-list-name out [connected | rip | static] Example of Viewing Configured Prefix Lists (ROUTER OSPF mode) To view the configuration, use the show config command in ROUTER OSPF mode, or the show running-config ospf command in EXEC mode. Dell(conf-router_ospf)#show config ! router ospf 34 network 10.2.1.1 255.255.255.255 area 0.0.0.1 distribute-list prefix awe in Dell(conf-router_ospf)# ACL Resequencing ACL resequencing allows you to re-number the rules and remarks in an access or prefix list. The placement of rules within the list is critical because packets are matched against rules in sequential order. To order new rules using the current numbering scheme, use resequencing whenever there is no opportunity. For example, the following table contains some rules that are numbered in increments of 1. You cannot place new rules between these packets, so apply resequencing to create numbering space, as shown in the second table. In the same example, apply resequencing if more than two rules must be placed between rules 7 and 10. Access Control Lists (ACLs) 117