3Com 3031 Command Reference Manual page 679

3com 3031: reference guide

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Routing policy view

value: Specifies the required tag value.

Using the if-match tag command, you can match the tag field of OSPF route

information. Using the undo if-match tag command, you can cancel the existing

matching rules.

For the related command, see if-match interface, if-match acl, if-match ip-prefix,

if-match ip next-hop, if-match cost, route-policy, apply ip-address, apply cost,

apply local-preference, apply origin, and apply tag.

Display how to define one if-match clause and enable the OSPF route information

whose tag field is 8 to pass the if-match clause.

[3Com-route-policy] if-match tag 8

ip ip-prefix

ip ip-prefix ip-prefix-name [ index index-number ] { permit | deny } network len [

greater-equal greater-equal | less-equal less-equal ]

undo ip ip-prefix ip-prefix-name [ index index-number | permit | deny ]

ip-prefix-name: Specifies an address prefix list name. It identifies one address

prefix list uniquely.

index-number: Identifies an item in the prefix address list. The item with smaller

index-number will be tested first.

permit: Specifies the match mode of the defined address prefix list items as

permit mode. In the permit mode, if the IP address to be filtered is in the

defined range, it will not be tested by the next node. Otherwise, it has to go on

with the test.

deny: Specifies the match mode of the defined address prefix list items as deny

mode. In the deny mode, the IP address in the defined range cannot pass the

filtering and is refused to go on with the next test. Otherwise, it will have the

network: IP address prefix range (IP address). If it is 0.0.0.0 0, all the IP

addresses are matched.

len: IP address prefix range (mask length). If it is 0.0.0.0 0, all the IP addresses

are matched.

greater-equal, less-equal: Specifies the address prefix range [greater-equal,

less-equal] to be matched after the address prefix network len has been

matched. The meaning of greater-equal is "greater than or equal to" , and the

IP Routing Policy Configuration Commands