From: Antonio Sabella (Antonio.Sabella@xxxxxxxxxxx)
Date: Thu Nov 11 1999 - 11:20:31 GMT-3
Here's the trick. When trying to propagate a default route in IGRP from R3 to
R4, you must make sure that the CLASSFUL route you're trying to propagate from
R3, is in R4's routing table. If not, you can create a loopback address on R3
that's classful, propagate that route via IGRP to R4, then create the IP
default-network statement on R3 using THAT classful route. You will then see
the route show up in R3's routing table as "candidate default". When you
telnet over to R4, you will notice that his gateway of last resort is set to
R3.
Hope this helps,
Antonio Sabella
nobody@groupstudy.com on 11/11/99 12:26:23 AM
To: ccielab@groupstudy.com@internet@WTAXE
cc:
Subject: IGRP default network
How can I get IGRP to get a deafult route.
R2 ---------- R3-----------R4
/28 /24
R2 and R3 run OSPF or EIGRP or anything the does VLSM.
R3 and R4 run IGRP.
I want to inject a default network/ Network of last resort into R4. I am
using the IP DEFAULT-NETWORK command on R3 but a debug of the IGRP process
doesnt show it sending out any EXTERIOR routes. R4 sees a few of the /24
routes from the OSPF area but no "gateway of last resort" Calsows book o
pp.356 covers this concept but I cant get it to work. All routers are using
IP CLASSLESS and IP SUBNET-ZERO
R3's IP DEFAULT NETWORK command is pointing to a classfull route that exists
in its own routing table. The route is from a differnet major network than
is running on the link between R3-R4 or for that matter anywhere else in the
network.
anyone have any ideas ??
Thanks !
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