From: Joe Martin (jmartin@capitalpremium.net)
Date: Thu Jul 31 2003 - 12:15:51 GMT-3
Raj,
The EIGRP summary address is used on the interface on which you would like
to advertise the summary address, but it can summarize any EIGRP routes for
which you have a more specific route.
So let's say that your lo0 iterface is 150.50.5.5/32 and you have an EIGRP
neighbor connected on interface e0. You want to send a summary address for
the lo0 interface to the neighbor on e0. YOu would enter the following
command on e0:
int e0
ip add 10.0.0.1 255.255.0.0
ip summary-address eigrp 100 150.50.5.0 255.255.255.0 85
Notice I am summarizing the lo0 network to a 24-bit mask. Also, I did not
enter the command on the lo0 interface. I entered it on the interface to
which I wanted to advertise the summary.
Also, the 100 is the EIGRP AS number; the 85 is the AD for this summary.
Specifying the AD is optional and will default to 5 for EIGRP summary
addresses.
HTH,
Joe Martin
CCIE #12035
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
ccie2be
Sent: July 31, 2003 8:02 AM
To: Group Study
Subject: Eigrp summarization
Hi,
When the Eigrp command, ip summary-address eigrp # <a.b.c.d> <m.m.m.m>, is
entered on most interfaces, that summary address is advertised to the eigrp
neighbors, but when entered under a loopback interface, it isn't
advertised.
Is that the way it should be or did I do (or not do) something wrong?
Thanks, Raj
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