3com 8807 Reference Guide

the filtering conditions for the routing information to be advertised. Only the 
routing information passing the filtration can be advertised.

Related command: filter-policy import.

# Define the filtering rules for advertising the routing information of RIP. Only the 
routing information passing the filtering of address prefix list p1 will be advertised 
by RIP.

[3Com-rip] filter-policy ip-prefix p1 export 

filter-policy gateway ip-prefix-name import

undo filter-policy gateway ip-prefix-name import

filter-policy { acl-number | ip-prefix ip-prefix-name [ gateway ip-prefix-name] } 
import

undo filter-policy { acl-number | ip-prefix ip-prefix-name [ gateway 
ip-prefix-name] } import

Routing protocol view

acl-number: The access control list number used for matching the destination 
address field of the routing information.

ip-prefix ip-prefix-name: The prefix address list name. Its matching object is the 
destination address field of the routing information.

gateway ip-prefix-name: The prefix address list name of the neighbor router 
address. Its matching object is the routing information advertised by the specified 
neighbor router.

Use the filter-policy gateway import command to filter the received routing 
information advertised by a specified router.

Use the undo filter-policy gateway import command to cancel the setting of 
the filtering condition.

Use the filter-policy import command to set the condition for filtering the 
routing information.

Use the undo filter-policy import command to cancel the setting of filter 
condition.

By default, the received routing information is not filtered. To ignore some routing 
information received, you can use the filter-policy command to set the filter 
condition.