From: Ben Rife (brife@xxxxxxxxxx)
Date: Wed Jan 26 2000 - 00:28:49 GMT-3
Alex,
Without looking at your configs, I believe you need to configure
authentication on your virtual link on both routers since it is an extension
of your area 0. The syntax is something like...
router ospf 100
area 4 virtual-link x.x.x.x message-digest ....
Hope this helps, please let me know,
Ben (Feb 6-7, RTP)
----- Original Message -----
From: "Alex Yeung" <alex.yeung@lmco.com>
To: "CCIELAB" <ccielab@groupstudy.com>
Sent: Tuesday, January 25, 2000 9:15 PM
Subject: OSPF Virtual Link and Authentication
> Hi All,
>
> I run into a strange problem with ospf virtual link & authentication:
>
> r1 ---- r2 ---- r3
>
> r1's lo int is in area 4
> link between r1 and r2 is in area 3
> link between r2 and r3 is area 0
>
> Virtual link is configured on r2 and r3 for area 4 use area 3 as transit
> area. For learning purpose, I configured area 0 to use md5 authentication,
> as soon as I configured that, the virtual link is not longer working. Then
I
> tried the 'message-digest-key' option with the 'area virtual' command, but
> still doesn't work.
>
> Any ideas?
>
> Thanks in advance for your response.
>
> Alex Yeung, CCNP, MCSE
> Network Engineer
>
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