Dell Force10 S4810P - Page 125

Access Control Lists (ACLs) | 125
The example below 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:
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)
2
{deny | permit} ip-prefix [ge
min-prefix-length] [le
max-prefix-length]
CONFIG-NPREFIXL 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).
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.
Step Command Syntax Command Mode Purpose