Setup Guide

The example shows 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 PREFIX LIST mode displays two filters with the sequence numbers 5 and
10.
DellEMC(conf-nprefixl)#permit 123.23.0.0 /16
DellEMC(conf-nprefixl)#deny 133.24.56.0 /8
DellEMC(conf-nprefixl)#show conf
!
ip prefix-list awe
seq 5 permit 123.23.0.0/16
seq 10 deny 133.0.0.0/8
DellEMC(conf-nprefixl)#
To delete a filter, enter the show config command in PREFIX LIST mode and locate the sequence number of the filter you
want to delete, then use the no seq sequence-number command in PREFIX LIST mode.
Viewing Prefix Lists
To view all configured prefix lists, use the following commands.
● Show detailed information about configured prefix lists.
EXEC Privilege mode
show ip prefix-list detail [prefix-name]
● Show a table of summarized information about configured Prefix lists.
EXEC Privilege mode
show ip prefix-list summary [prefix-name]
The following example shows the show ip prefix-list detail command.
DellEMC>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)
The following example shows the show ip prefix-list summary command.
DellEMC>
DellEMC>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
DellEMC>
Applying a Prefix List for Route Redistribution
To pass traffic through a configured prefix list, use the prefix list in a route redistribution command.
Apply the prefix list to all traffic redistributed into the routing process. The traffic is either forwarded or dropped, depending on
the criteria and actions specified in the prefix list.
To apply a filter to routes in RIP, use the following commands.
● Enter RIP mode.
Access Control Lists (ACLs)
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