From: Jeongwoo Park (jpark@xxxxxxxx)
Date: Thu Mar 07 2002 - 14:17:27 GMT-3
Thanks for all your replies.
It cleared my questions completely.
JP
-----Original Message-----
From: Edmund Roche-Kelly [mailto:edr9007@nyp.org]
Sent: Thursday, March 07, 2002 7:48 AM
To: Jeongwoo Park
Cc: 'ccielab@groupstudy.com'
Subject: Re: ospf authentication over virtual link
1. Area 0. It's the only area on 1.1.1.1 and 3.3.3.3 with "area n
authentication" configured. The virtual link connects 3.3.3.3 to area
0. Authenticating the virtual link is more or less equivalent to
configuring "ip ospf message-digest-key 1 md5 cisco" on a physical
interface.
2. All routers in the area have to have same authentication
parameters, and e2/0/0 is in area 0.
3. ATM 2/0.20 is in area 1. There's no authentication configured for
area 1.
Jeongwoo Park wrote:
>
> hi all
> I found this link http://www.cisco.com/warp/public/104/27.html on Cisco
> website.
> It is MD5 authentication over virtual link
> According to the diagram, there area 3 areas--area0,1,and 2
> Now,
> Question 1 is what area it is securing based on that config? Is it area 0
or
> 1?
>
> Question 2 is what "ip ospf message-digest-key 1 md5 cisco" is doing under
> interface e2/0/0 on router1.1.1.1?
> Question 3 is why there is no "ip ospf message-digest-key 1 md5 cisco"
under
> interface ATM2/0.20 on router3.3.3.3?
> Thanks in adv.
>
> JP
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