IP Routing Policy Configuration Commands 555the filtering conditions for the routing information to be advertised. Only therouting information passing the filtration can be advertised.Related command: filter-policy import.Example# Define the filtering rules for advertising the routing information of RIP. Only therouting information passing the filtering of address prefix list p1 will be advertisedby RIP.[3Com-rip] filter-policy ip-prefix p1 exportfilter-policy import Syntaxfilter-policy gateway ip-prefix-name importundo filter-policy gateway ip-prefix-name importfilter-policy { acl-number | ip-prefix ip-prefix-name [ gateway ip-prefix-name] }importundo filter-policy { acl-number | ip-prefix ip-prefix-name [ gatewayip-prefix-name] } importViewRouting protocol viewParameteracl-number: The access control list number used for matching the destinationaddress field of the routing information.ip-prefix ip-prefix-name: The prefix address list name. Its matching object is thedestination address field of the routing information.gateway ip-prefix-name: The prefix address list name of the neighbor routeraddress. Its matching object is the routing information advertised by the specifiedneighbor router.DescriptionUse the filter-policy gateway import command to filter the received routinginformation advertised by a specified router.Use the undo filter-policy gateway import command to cancel the setting ofthe filtering condition.Use the filter-policy import command to set the condition for filtering therouting information.Use the undo filter-policy import command to cancel the setting of filtercondition.By default, the received routing information is not filtered. To ignore some routinginformation received, you can use the filter-policy command to set the filtercondition.
