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1 monitor and debug command, 1 show ip prefix-list

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mode items can be defined first to fast remove the unmatched routing messages,

however if all the items are set to deny mode, any route will not be able to pass the

filtering of this address prefix list. We can define a permit 0.0.0.0/0 le 32 item after

several deny mode items are defined so to permit all other routing messages pass

through. Only default route will be matched in less-equal 32 is not specified.

13.2.5.1 Monitor And Debug Command

13.2.5.1.1 show ip prefix-list

Command: show ip prefix-list [<list-name> [<ip_addr/len> [first-match | longer] |

seq <sequence-number>]]

Function:

Show by prefix-list names.

Parameter: <list-name>

is the name of prefix-list, <ip_addr/len> is the prefix ip address

and the length of mask, first-match stands for the first route table matched with specified

ip address, longer means longer prefix is required, seq means show by sequence
number, <sequence-number> is the sequence number, ranging between 0 ~

4294967295.

Default:

None

Command Mode:

all modes

Usage Guide:

All prefix-list will be listed when no prefix-list name is specified.

Example:

Switch# #show ip prefix-list

ip prefix-list 1: 1 entries

deny any

ip prefix-list mylist: 1 entries

deny 1.1.1.1/8

Switch#show ip prefix-list mylist 1.1.1.1/8

seq 5 deny 1.1.1.1/8 (hit count: 0, recount: 0)

Displayed information

Explanation

ip prefix-list mylist: 1 entries

Show a prefix-list named mylist which

includes 1 instance.

seq 5 deny 1.1.1.1/8 (hit count: 0,

recount: 0)

Show the prefix-list contents sequence

numbered 5. hit count: 0 means being hit

0 time, recount: 0 means referred 0 time.

13.2.5.1.2 show ip prefix-list

Command: show ip prefix-list [ [<list-name>] ]

Function:

Show the prefix-list contents.

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