From: Bogdan Sass (bogdan.sass@catc.ro)
Date: Mon Aug 25 2008 - 10:33:13 ART
I am working on an IE lab (lab 8), and I have the following topology:
R2 directly connected to R3, over a multilink interface (MLPPP over FR).
Both advertising their loopback interfaces into OSPF area 0.
The problem: while R3 sees R2's loopback, R2 doesn't see the route
from R3:
R3#sh ip ro
174.1.0.0/24 is subnetted, 2 subnets
C 174.1.3.0 is directly connected, Ethernet0/0
C 174.1.23.0 is directly connected, Multilink1
150.1.0.0/16 is variably subnetted, 2 subnets, 2 masks
C 150.1.3.0/24 is directly connected, Loopback0
O 150.1.2.2/32 [110/1786] via 174.1.23.2, 00:01:02, Multilink1
R2#sh ip ro
174.1.0.0/24 is subnetted, 1 subnets
C 174.1.23.0 is directly connected, Multilink1
150.1.0.0/24 is subnetted, 1 subnets
C 150.1.2.0 is directly connected, Loopback0
A debug ip ospf spf on R2 shows the following:
*Mar 1 06:03:44.786: Processing link 2, id 150.1.3.3, link data
174.1.23.2, type 1
*Mar 1 06:03:44.786: No RTR Back link
Does anyone know why this happens and how to fix it? I wouldn't mind
so much the loss of one route, but... if the router id is not
accessible, neither are any of the routes distributed by R3... :|
Thank you,
-- Bogdan Sass CCAI,CCNP,CCSP,JNCIA-ER Information Systems Security Professional "Curiosity was framed - ignorance killed the cat"Blogs and organic groups at http://www.ccie.net
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