Dell Force10 E600i FTOS Version 8.4.1.5 Configuration Guide for ExaScale - Page 152

www.dell.com | support.dell.com Note the last line in the prefix list Juba contains a "permit all" statement. By including this line in a prefix list, you specify that all routes not matching any criteria in the prefix list are forwarded. To delete a filter, use the no seq sequence-number command in the PREFIX LIST mode. If you are creating a standard prefix list with only one or two filters, you can let FTOS assign a sequence number based on the order in which the filters are configured. The FTOS assigns filters in multiples of five. To configure a filter without a specified sequence number, use these commands in the following sequence starting in the CONFIGURATION mode: Step Command Syntax Command Mode 1 ip prefix-list prefix-name CONFIGURATION 2 {deny | permit} ip-prefix [ge CONFIG-NPREFIXL min-prefix-length] [le max-prefix-length] Purpose Create a prefix list and assign it a unique name. Create a prefix list filter with a deny or permit action. The optional parameters are: • ge min-prefix-length: is the minimum prefix length to be matched (0 to 32). • le max-prefix-length: is the maximum prefix length to be matched (0 to 32). The following example illustrates a prefix list in which the sequence numbers were assigned by the software. The filters were assigned sequence numbers based on the order in which they were configured (for example, the first filter was given the lowest sequence number). The show config command in the PREFIX LIST mode displays the two filters with the sequence numbers 5 and 10. FTOS(conf-nprefixl)#permit 123.23.0.0 /16 FTOS(conf-nprefixl)#deny 133.24.56.0 /8 FTOS(conf-nprefixl)#show conf ! ip prefix-list awe seq 5 permit 123.23.0.0/16 seq 10 deny 133.0.0.0/8 FTOS(conf-nprefixl)# To delete a filter, enter the show config command in the PREFIX LIST mode and locate the sequence number of the filter you want to delete; then use the no seq sequence-number command in the PREFIX LIST mode. To view all configured prefix lists, use either of the following commands in the EXEC mode: Command Syntax show ip prefix-list detail [prefix-name] show ip prefix-list summary [prefix-name] Command Mode EXEC Privilege EXEC Privilege Purpose Show detailed information about configured Prefix lists. Show a table of summarized information about configured Prefix lists. 152 | IP Access Control Lists (ACL), Prefix Lists, and Route-maps