From: Adel Abushaev (adel@netmasterclass.net)
Date: Wed Apr 30 2008 - 12:36:31 ART
Leaving all the practical reasons to run RIP and OSPF on the same link
aside, and if you are redistributing RIP to OSPF on R3, R2 will learn the
prefix 1.1.1.0/24 from R3 instead of R1 because OSPF admin distance is
better, and you are in routing loop here. If you do debug IP routing on R2
you will see this prefix bouncing.
To solve the issue you can lower RIP admin distance for prefixes that are
native to RIP. Setting the distance to 109 will fix the issue.
Cheers,
Adel.
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of Eric
Chang
Sent: Tuesday, April 29, 2008 6:37 PM
To: Cisco certification
Subject: Will RIP broadcast a route that is in it's routing table to the
neighbor?
Hi Experts,
I met a problem when doing a test. R2 learned a route(1.1.1.0/24) via
rip from R1,and R2 to connect R3 via both RIP and OSPF, After redistribution
from rip to ospf at R3, R2 's routing table will accept OSPF's route to
1.1.1.0/24. At this point R2 stop sending 1.1.1.0/24 via RIP to R3 cause it
is not in the rip routing table?
Is this correct behavior? or Should R2 always send this RIP learned route to
it's neighbor?
Many Thanks
Eric
Pass the CCIE in six weeks, Guaranteed!
http://www.certscience.com/CCIE
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