Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Community Member

OSPF - Route Filtering Recommendations

Hi,

We are filtering routes inbound using an OSPF setup. We are filtering the routes populating the routing table, we do not need to stop the routes entering the OSPF database.

We currently use standard numbered ACL's (1-99) linked to a route-map to achieve this. I am looking at other options in order to provide greater flexibility i.e. named ACL's, prefix-lists etc.

Can anybody provide any suggestions/recommendations as to the most flexible yet robust method?

I am running this on a 3750 with the Enhanced image.

Cheers,

Andy.

2 REPLIES
Silver

Re: OSPF - Route Filtering Recommendations

The OSPF Inbound Filtering Using Route Maps with a Distribute List feature allows users to define a route map to prevent Open Shortest Path First (OSPF) routes from being added to the routing table. In the route map, the user can match on any attribute of the OSPF route.

For the configuration follow the URL :

http://www.cisco.com/en/US/docs/ios/iproute/configuration/guide/irp_ospf_inbound_ps6922_TSD_Products_Configuration_Guide_Chapter.html#wp1040908

Community Member

Re: OSPF - Route Filtering Recommendations

I was looking to implement something like this. But arent you able to filter with just an acl and distribute list, why is a route map needed?

215
Views
0
Helpful
2
Replies
CreatePlease to create content