From: Petr Lapukhov (petrsoft@gmail.com)
Date: Mon May 15 2006 - 01:31:58 ART
David,
It's not a big issue actually, since you may change summary's
AD.
For instance:
ip summary-address eigrp 4 0.0.0.0 0.0.0.0 200
Another way would be redistributing default route from another protocol,
and using distribute list to filter, as you mentioned.
HTH
Petr
2006/5/14, David Mann <dmann73702@elmore.rr.com>:
>
> 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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