RE: Quiz Question of the Day 20040725

From: Kenneth Wygand (KWygand@customonline.com)
Date: Mon Jul 26 2004 - 11:05:26 GMT-3


Hai,
 
Taking the RIP spin on things here, auto-summary would need to be disabled on the router originating the networks, which in this case is R1. If you disable auto-summary on R2, the route has already been summarized by R1 by the time the update reaches R2. R2 never knows the original mask of the route, and thus cannot "unsummarize" the route.
 
Thanks!
Ken

________________________________

From: Hai Minh [mailto:minh@labvn.net]
Sent: Mon 7/26/2004 8:11 AM
To: Kenneth Wygand
Cc: ccielab@groupstudy.com
Subject: Re: Quiz Question of the Day 20040725

Ken

Enable RIPv2 on R2 and use no auto-summary command.

----- Original Message -----
From: "Kenneth Wygand" <KWygand@customonline.com>
To: "Geert Nijs" <geert.nijs@simac.be>
Cc: <ccielab@groupstudy.com>
Sent: Monday, July 26, 2004 6:59 AM
Subject: RE: Quiz Question of the Day 20040725

> ?
> Geert,
>
> 1) Yes, you are correct that with "no auto-summary" on R1, R2 will only
see the /24 route. I mis-spoke in my last email, as the route still shows
up in the rip database (show ip rip database) as a /8 due to "auto-summary".
It appears as if Rip will automatically auto-summarize into its own
database. It seems that "no auto-summary" doesn't prevent Rip from putting
the auto-summarized address into its own database, rather it prevents the
auto-summarized addresses from entering the RIB from the Rip process.



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