From: Montiean (noktes@bellsouth.net)
Date: Fri Jul 01 2005 - 15:25:20 GMT-3
hehe, correcting below debug command. Actually, it will ignore update when
using "validate-update-source".
--Montiean
----- Original Message -----
From: "Montiean" <noktes@bellsouth.net>
To: <ccielab@groupstudy.com>
Sent: Friday, July 01, 2005 11:12 AM
Subject: validate-update-source question again
> Hi,
> I am looking for the situation that we are using validate-update-source.
> Ofcourse, I have archieved thourgh GS and cisco page but it doesnot
relieve my
> headache yet. I lab up to test this command.
>
> r4 --isdn --- r1
>
> r4 and r1 connected to each others under rip. 10.120.120.0/24. R4 also has
> 44.44.44.44/24 as a secondary address.
>
> With validate source
>
> 03:17:34: RIP: received v2 update from 10.120.120.4 on BRI0/0
> 03:17:34: 10.40.40.0/24 via 0.0.0.0 in 1 hops
> 03:17:34: 10.80.80.0/24 via 0.0.0.0 in 2 hops
> 03:17:34: 10.110.110.0/24 via 0.0.0.0 in 1 hops
> 03:17:34: 150.1.4.0/24 via 0.0.0.0 in 1 hops
> 03:17:34: RIP: received v2 update from 44.44.44.44 on BRI0/0
> 03:17:34: 10.40.40.0/24 via 0.0.0.0 in 1 hops
> 03:17:34: 10.80.80.0/24 via 0.0.0.0 in 2 hops
> 03:17:34: 10.110.110.0/24 via 0.0.0.0 in 1 hops
> 03:17:34: 150.1.4.0/24 via
>
> Without validate-update-source
>
> 03:18:57: RIP: received v2 update from 10.120.120.4 on BRI0/0
> 03:18:57: 10.40.40.0/24 via 0.0.0.0 in 1 hops
> 03:18:57: 10.80.80.0/24 via 0.0.0.0 in 2 hops
> 03:18:57: 10.110.110.0/24 via 0.0.0.0 in 1 hops
> 03:18:57: 150.1.4.0/24 via 0.0.0.0 in 1 hops
> 03:18:57: RIP: ignored v2 update from bad source 44.44.44.44 on BRI0/0
>
> Under DDR, one task to accomplish is to disable this validation. I lab up
DDR,
> but it has worked fine without disable this command. What's kind of
situation
> we need to use this one.. Especially in the lab exam. Appreciated your
time to
> look into this question.
>
> --Montiean
>
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