From: Eric Hoffman (Ehoffman@comproinc.com)
Date: Wed Sep 11 2002 - 17:09:40 GMT-3
Hi Young,
I believe that you have to have that route in the routing table, before the
summarization will take place.
Here is some text from the documentation, that leads me to think this way:
If there are any more specific routes in the routing table, IP Enhanced IGRP
will advertise the summary address out the interface with a metric equal to
the minimum of all more specific routes.
If you take out the redistribution command, what happens when you add those
network statements under the eigrp process?
-----Original Message-----
From: Young K. Bae [mailto:ybae@cisco.com]
Sent: Wednesday, September 11, 2002 3:52 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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