Concept Guide

seq 10 deny 133.0.0.0/8
Dell(conf-nprefixl)#
To delete a lter, enter the show config command in PREFIX LIST mode and locate the sequence number of the lter you want to
delete, then use the no seq sequence-number command in PREFIX LIST mode.
Viewing Prex Lists
To view all congured prex lists, use the following commands.
• Show detailed information about congured prex lists.
EXEC Privilege mode
show ip prefix-list detail [prefix-name]
• Show a table of summarized information about congured Prex lists.
EXEC Privilege mode
show ip prefix-list summary [prefix-name]
Example of the show ip prefix-list detail Command
Example of the show ip prefix-list summary Command
Dell>show ip prefix detail
Prefix-list with the last deletion/insertion: filter_ospf
ip prefix-list filter_in:
count: 3, range entries: 3, sequences: 5 - 10
seq 5 deny 1.102.0.0/16 le 32 (hit count: 0)
seq 6 deny 2.1.0.0/16 ge 23 (hit count: 0)
seq 10 permit 0.0.0.0/0 le 32 (hit count: 0)
ip prefix-list filter_ospf:
count: 4, range entries: 1, sequences: 5 - 10
seq 5 deny 100.100.1.0/24 (hit count: 0)
seq 6 deny 200.200.1.0/24 (hit count: 0)
seq 7 deny 200.200.2.0/24 (hit count: 0)
seq 10 permit 0.0.0.0/0 le 32 (hit count: 0)
Dell>
Dell>show ip prefix summary
Prefix-list with the last deletion/insertion: filter_ospf
ip prefix-list filter_in:
count: 3, range entries: 3, sequences: 5 - 10
ip prefix-list filter_ospf:
count: 4, range entries: 1, sequences: 5 - 10
Dell>
Applying a Prex List for Route Redistribution
To pass trac through a congured prex list, use the prex list in a route redistribution command.
Apply the prex list to all trac redistributed into the routing process. The trac is either forwarded or dropped, depending on the criteria
and actions specied in the prex list.
To apply a lter to routes in RIP, use the following commands.
• Enter RIP mode.
CONFIGURATION mode
router rip
• Apply a congured prex list to incoming routes. You can specify an interface.
If you enter the name of a nonexistent prex list, all routes are forwarded.
CONFIG-ROUTER-RIP mode
Access Control Lists (ACLs)
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