RE: An EIGRP Summary-Address not advertised to neighbors

From: Frank Maisano (FrankM@netarch.com)
Date: Wed Sep 11 2002 - 17:28:30 GMT-3


So it would seem as though the routes are loaded into the routing table with
the redistribution command. Do you have a "network 172.16.0.0" in your
EIGRP Process?

-----Original Message-----
From: Young K. Bae [mailto:ybae@cisco.com]
Sent: Wednesday, September 11, 2002 1:52 PM
To: 'Desimone, Aurelio'; ccielab@groupstudy.com
Subject: RE: An EIGRP Summary-Address not advertised to neighbors

I have those both commands in and the AS number used is 1.

What strange is... As soon as I entered "redistribute connected" under the
EIGRP routing process, the summary-route is advertised to its neighbors.

Young

> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
> Desimone, Aurelio
> Sent: Wednesday, September 11, 2002 1:20 PM
> To: 'Young K. Bae'; ccielab@groupstudy.com
> Subject: RE: An EIGRP Summary-Address not advertised to neighbors
>
>
> Do you have 'ip subnet-zero' in global config and 'no
> auto-summary' in eigrp
> config?
>
> -----Original Message-----
> From: Young K. Bae [mailto:ybae@cisco.com]
> Sent: Wednesday, September 11, 2002 1:51 PM
> To: ccielab@groupstudy.com
> Subject: An EIGRP Summary-Address not advertised to neighbors
>
>
> Hello,
>
> There are three loopbacks on R2 with addresses 172.16.1.1,
> 172.16.2.1, and
> 172.16.3.1, with a mask of /24. I have a summary-address
> configured on both
> R2's interfaces, a serial connection to R1 and an Ethernet
> connection to R3
> and R4, with a statement 'ip summary-address eigrp 1 172.16.0.0
> 255.255.252.0'. The R2 router sees all other routers as
> neighbors, but it's
> not advertising the /22 summary route to its neighbors. What could be
> wrong? Please let me know if you need more info.
>
> R1 ----- R2
> |
> |
> R3 |------------| R4
>
> Thanks in advance,



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