From: Chua, Parry (Parry.Chua@xxxxxxxxxx)
Date: Fri Dec 14 2001 - 00:42:30 GMT-3
Hi,
If your concerns is to redistribute 141.1.76/22 from OSPF into IGRP
network with /24 mask on same classful address 141.1.0.0, then you
should break the /22 into 4 /24 and then redistribute into IGRP.
Summariesation work in opposite direction.
141.1.76/22 ->into 141.1.76.0/24, 141.1.77.0/24, 141.1.78.0/24 and
141.1.79.0/24
Regards
Parry
-----Original Message-----
From: Lupi, Guy [mailto:Guy.Lupi@eurekaggn.com]
Sent: Friday, December 14, 2001 9:15 AM
To: 'ccielab@groupstudy.com'
Subject: OSPF to IGRP redistribution
Ok, before I start I have searched the archives and found 2 solutions,
one
works in my lab and one does not. Here is the setup, one router running
OSPF and IGRP, it is an ASBR. One router running IGRP only. One of the
interfaces on the ASBR is in 147.1.76.0/22, the interface connected to
the
IGRP router is in 147.1.5.0/24. Now I know that because they are part
of
the same classful network and the subnets are not the same the OSPF
router
will not advertise the 147.1.76.0/22 network. I found 2 solutions to
this,
a "summary-address 147.1.77.0 255.255.255.0" in the OSPF config which
does
not seem to work for me, and the other solution is a route map on the
IGRP
only router specifying the next hop address for the networks that I am
trying to reach. While the route map works, it does not put the routes
in
the routing table on the IGRP router. I have heard that on some IOS
versions the summary address command does not work for redistribution, I
am
running 12.2(1b) on both routers. Sorry to open this can of worms
again,
any help is, as always, appreciated.
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