Dell S3048-ON, Configuration Manual

Page: 128 / 1036

ip prefix-list prefix-name
2 Create a prefix list filter with a deny or permit action.
CONFIG-NPREFIXL mode
{deny | permit} ip-prefix [ge min-prefix-length ] [le max-prefix-length ]
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).
Example of Creating a Filter with Dell Networking OS-Assigned Sequence Numbers
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.
Dell(conf-nprefixl)#permit 123.23.0.0 /16
Dell(conf-nprefixl)#deny 133.24.56.0 /8
Dell(conf-nprefixl)#show conf
!
ip prefix-list awe
seq 5 permit 123.23.0.0/16
seq 10 deny 133.0.0.0/8
Dell(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 ]
Examples of the
show ip prefix-list
Command
The following example shows the
show ip prefix-list detail
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)
The following example shows the
show ip prefix-list summary
command.
Dell>
Dell>show ip prefix summary
128 Access Control Lists (ACLs)