88 | Access Control Lists (ACLs)
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Figure 5-16 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
the two filters with the sequence numbers 5 and 10.
Figure 5-16. Prefix List
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.
To view all configured prefix lists, use either of the following commands in EXEC mode (Figure 5-17) and
(Figure 5-18):
Figure 5-17. Command example: show ip prefix-list detail
Figure 5-18. Command Example: show ip prefix-list summary
Command Syntax Command Mode Purpose
show ip prefix-list detail [prefix-name]
EXEC Privilege Show detailed information about configured Prefix
lists.
show ip prefix-list summary [prefix-name]
EXEC Privilege Show a table of summarized information about
configured Prefix lists.
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)#
FTOS>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)
FTOS>
FTOS>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
FTOS>
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