From: Ivan (limmt@xxxxxxxxxxxxx)
Date: Thu Jul 18 2002 - 23:41:58 GMT-3
Hi,
IGRP is a classfull (FLSM) routing protocol.
In your case where the subnet mask is different on IGRP and EIGRP domain, 2 iss
ues arise:
1. When the routes are redistributed to IGRP and the routes are part of the maj
or network boundary as the interface sourcing the IGRP update, it will not be r
edistrbute because of the different in subnet mask.
2. When the routes are redistributed to IGRP and the routes are not part of the
major network boundary as the interface sourcing the IGRP update, it will be a
utomatically summarized to the major class boundary.
I guess your case is in 2.
Thats the reason why the auto-summary command under your Eigrp router config do
es not work
Regards,
-----Original Message-----
From: "nobody@groupstudy.com" <nobody@groupstudy.com> on behalf of "ccie c
andidate" <ccie1@lycos.com>
Sent: Thursday, July 18, 2002 8:29 PM
To: "ccielab@groupstudy.com" <ccielab@groupstudy.com>
Subject: EIGRP /IGRP
guys ;
i have a scenario where EIGRP and IGRP are having the same AS number and reditr
ibuting autmatically , the EIGRP domain have different subnets (masks) .
i disabled the auto-summary on all routers in eigrp domain including the redist
point ,however the routers in IGRP domain can see all the routes in EIGRP doma
in as if EIGRP summarized them .
am i supposed to do this manually on EIGRP by using the summary address command
??? as per doyle vol 1 ?
what am i missing here ?
candidate
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