From: Scott Morris (swm@emanon.com)
Date: Tue Oct 01 2002 - 21:09:15 GMT-3
I'm not sure why CCO would tell you it had to be on both sides...
OSPF sends hellos to a multicast address, so the specific IP isn't any
big deal. In addition, they exchange RID's which aren't necessarily the
specific interface IP anyway. *shrug*
Every time I've done stuff with unnumbered it hasn't mattered what the
other side did either.
Scott
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Hunt Lee
Sent: Tuesday, October 01, 2002 7:52 PM
To: 'ccielab@groupstudy.com'
Subject: URGENT - Help needed
Hello Group,
I was doing some reading on CCO this morning, and it stated that for
OSPF adjacency to work, if "ip unnumbered" is used, it must be used on
both sides of a link.
However, when I tried it, I managed to get OSPF still to form adjacency
even I have only used the "ip unnumbered" on one side of the link. Is
CCO wrong? Or am I missing something?
At RTA:
interface Loopback0
ip address 172.16.32.1 255.255.255.0
interface Serial0
ip unnumbered Loopback0
no fair-queue
clockrate 64000
At RTB:
interface Serial0
ip address 172.16.32.2 255.255.255.0
no fair-queue
But OSPF still works.... any ideas??
R2#sh ip ospf n
Neighbor ID Pri State Dead Time Address Interface
172.16.32.1 1 FULL/ - 00:00:39 172.16.32.1 Serial0
R2#
Hunt
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