From: David Mann (dmann73702@elmore.rr.com)
Date: Sun May 14 2006 - 16:32:24 ART
Just read this.
You should not use the ip summary-address eigrp summarization command to
generate the default route (0.0.0.0) from an interface. This causes the
creation of an EIGRP summary default route to the null 0 interface with an
administrative distance of 5. The low administrative distance of this
default route can cause this route to displace default routes learned from
other neighbors from the routing table. If the default route learned from
the neighbors is displaced by the summary default route, or if the summary
route is the only default route present, all traffic destined for the
default route will not leave the router, instead, this traffic will be sent
to the null 0 interface where it is dropped.
The recommended way to send only the default route out a given interface is
to use a distribute-list command. You can configure this command to filter
all outbound route advertisements sent out the interface with the exception
of the default (0.0.0.0).
Dm
----- Original Message -----
From: <Eric.Stuhl@ferguson.com>
To: <mag08036@yahoo.com>; <ccielab@groupstudy.com>
Sent: Friday, May 12, 2006 11:22 AM
Subject: RE: EIGRP deafult route generation
> On the interface between R2/R3 you could set an eigrp summary for
> 0.0.0.0. That would give default to R3 without affecting R2, assuming
> that R2 is not a hub router in a NMBA multipoint configuration.
>
>
> Eric Stuhl
> CCNP, CCDP, CCSE-NG
> Ferguson Enterprises
> eric.stuhl@ferguson.com
> (757)-969-4146
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> marc fernandez
> Sent: Friday, May 12, 2006 12:11 PM
> To: ccielab@groupstudy.com
> Subject: EIGRP deafult route generation
>
> I have a scenario with three devices but I only want to send a default
> to one of them. R2 wants to send a default to R3 but not to R1. With out
> doing a static route. What would be the best or latest way to accomplish
> this. Is there something similar to OSPF default-information originate ?
>
>
> R1---------R2---------R3
>
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