OSPF Filtering question

From: D.H. Williams (draythw@gmail.com)
Date: Tue Jul 04 2006 - 11:31:36 ART


Hey fellows,

All right, was tinkering with OSPF filtering last night, and got a few
questions and what have not I wanted to ask, to see what everyone has to
say. Consider the following situation:

R5 with two point-to-point subinterfaces going to R1 and R2.

R1 and R2 have hdlc connections up to R3.

All of the above links are running OSPF; backend of R5 is running RIP;
Mutual Redistribution on R5.

Now, let's say I want the following scenerio, I want R3 to get to all the
RIP routes (E2) via R1. I tried the distribute-list statement on R2 using
teh route-map, but this just affects the route table, not the ospf database,
so r2 still advertise the E2 routes up to R3, even though they aren't in his
routing table.

My question, how can I affect R3 to where it prefers R1, including not
seeing anything advertise from R2 in the routing table? I'd also like R2 to
route through R3 to get to Rip routes. And i'm looking for a solution that
doesn't use cost or bandwidth (too easy and obvious, you know).

Thanks in advance!
D



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