From: yakout esmat (yesmat@xxxxxxxxxxxxxx)
Date: Thu Apr 18 2002 - 08:56:36 GMT-3
Kym,
When you have Area 0 Authent, you also HAVE to add at the end of ALL your
"Area x virtual a.b.c.d..." command the authentication Key and password like
so:
"area 2 virtual-link 192.168.1.1 message-digest key md5 cisco", and that
applies to all area x virtual commands in your network.
In your example below, you will not need the Interface serial 0
authentication because in router B you have no area 0.
I can say I am pretty sure about this one, I spent lots of time practicing
it.
HTH
Ya
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
kym blair
Sent: Thursday, April 18, 2002 8:28 AM
To: tsabry@houston.sns.slb.com; ccielab@groupstudy.com
Subject: Re: Virtual Links
Tarek,
I could only guess on the answer to your first question, so I'll let someone
else answer. On your second question, "If area 0 is authenticated, do I
have to put authentication on the virtual link?", the answer is yes. For
example:
Router A (has area 0 and area 2)
Router B (has area 2 and area 3):
router ospf 64
network 192.168.1.2 0.0.0.0 area 2
network 172.48.3.2 0.0.0.0 area 3
area 2 virtual-link 192.168.1.1
area 0 authentication message-digest
interface serial 0
ip ospf message-digest-key 1 md5 KEY1
HTH, Kym
>From: Tarek Sabry <tsabry@houston.sns.slb.com>
>Reply-To: Tarek Sabry <tsabry@houston.sns.slb.com>
>To: ccielab@groupstudy.com
>Subject: Virtual Links
>Date: Wed, 17 Apr 2002 16:58:53 -0500
>
>Hi
>
>This is a quick one. When I have 2 spokes that can act as ABRs between area
>1 and area 2 let's say, do I need 2 virtual links to area 0? Or should I
>only have one virtual link that I choose?
>
>Another question, if area 0 is authenticated then do I have to enable
>authentication on the virtual link? I thought I should, but the only way
>I'm
>able to bring one of the virtual links up is to remove the md5
>authentication!! Is there a problem because I'm using 2 parallel VLinks or
>this is the way it is supposed to work?
>
>Thanks
>Tarek
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