Viewing prefix lists
The show ip prefix-list command
displays the content of prefix lists.
Syntax:
show [ip | ipv6 prefix-list] [name list-name] [summary | detail]
Displays the content of prefix lists.
- [ip | ipv6]
Specifies an IPv4 (IP) or IPv6 prefix list.
name list-nameSpecifies the name of the prefix list to display. If this parameter is omitted, all prefix lists are displayed.
- [summary | detail]
If neither
summarynordetailis specified, the listing displays the name of the prefix list and each entry in the list (not including descriptions.)If
summaryis specified, the listing displays the name of the list and a summary of the entries (but not the entries themselves.)If
detailis specified, the listing displays the summary information, the description (if it exists), and the entries in the list.
Example
In a switch that contains two prefix lists, a standard display looks like this:
switch# show ip prefix-list
ip prefix-list Odd: 4 entries
seq 5 permit 10.1.1.1/24 ge 24 le 24
seq 10 deny 10.1.2.1/24 ge 24 le 24
seq 15 permit 10.1.3.1/24 ge 24 le 24
seq 20 deny 10.1.4.1/24 ge 24 le 24
ip prefix-list Even: 4 entries
seq 5 deny 10.1.1.1/24 ge 24 le 24
seq 10 permit 10.1.2.1/24 ge 24 le 24
seq 15 deny 10.1.3.1/24 ge 24 le 24
seq 20 permit 10.1.4.1/24 ge 24 le 24
A summary of the prefix lists looks like this:
switch# show ip prefix-list summary ip prefix-list Odd: Count:4, Range-entries: 4, Sequences: 5 - 20 ip prefix-list Even: Count:4, Range-entries: 4, Sequences: 5 - 20
A detailed display of one of the prefix lists looks like this:
switch# show ip prefix-list name Even detail
ip prefix-list Even: Count:4, Range-entries: 4,
Sequences: 5 - 20
seq 5 deny 10.1.1.1/24 ge 24 le 24
Description: Permit even-numbered subnets
seq 10 permit 10.1.2.1/24 ge 24 le 24
seq 15 deny 10.1.3.1/24 ge 24 le 24
seq 20 permit 10.1.4.1/24 ge 24 le 24