From: Salau, Yemi (yemi.salau@siemens.com)
Date: Mon Sep 10 2007 - 13:58:56 ART
Well, maybe your area0 is not setup for md5 authentication in the first
place, this could be either on the backbone box or the virtual ABR in
question.
When is "area 23 virtual-link 150.1.2.2 authentication message-digest"
needed
Comment: Obviously, When you want a form of security between your OSPF
devices, I believe each OSPF state transistion involves exchange of keys
if authentication is turned on. Your virtual link, as you know is an
"unreal" interface in the backbone area (area 0), so you need to make
sure your area0 is setup appropriately.
Many Thanks
Yemi Salau
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
ISolveSystems
Sent: Monday, September 10, 2007 5:32 PM
To: Cisco certification
Subject: When is "area 23 virtual-link 150.1.2.2 authentication
message-digest" needed
I have configured virtual-link md5 auth on a few neighbors. One of them
won't become adjacent without "area 23 virtual-link 150.1.2.2
authentication
message-digest". Any idea why?
area 23 virtual-link 150.1.2.2 authentication message-digest
area 23 virtual-link 150.1.2.2 message-digest-key 1 md5 CISCO
Thanks.
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