From: Tom Rice (tom.rice@xxxxxxx)
Date: Thu Sep 21 2000 - 09:47:28 GMT-3
Tony,
Try using the summary-address command under ospf assigning the prefix to the
mask as your link to your igrp router.
If you summarize the routes to the same mask as the igrp link they should
pass.
Tom Rice
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Mary Weidner
Sent: Wednesday, September 20, 2000 3:18 PM
To: ccielab@groupstudy.com
Subject: Redistributing OSPF into IGRP
All,
I am working on a practice lab on one of the midwest channels racks and am
having a problem with redistribution. Here's a sample config:
Router A
!
router ospf 100
network 172.17.59.32 0.0.0.15 area 0
network 172.17.59.48 0.0.0.15 area 2
network 172.17.59.64 0.0.0.63 area 3
redistribute igrp 100 metric 64 subnets
!
router igrp 100
network 172.17.0.0
redistribute ospf 100 metric 64 10 255 1 1500
Router B
!
router igrp 100
network 172.17.0.0
!
Here's the deal, IGRP does not understand VLSM which is what is being used
on router A with OSPF. From all the docs I've read, you would have to put in
static routes on Router B to tell it how to get to those other subnets,
except I'm not allowed to use static routes. The subnets in OSPF on Router A
are not redistributing into IGRP. They come out as 172.17.0.0 instead of
whatever the real network number is.
Here's the other thing I tried; I added these lines:
Router A
!
router ospf 100
default-information originate always
!
router igrp 100
default-information allowed in 1
default-information allowed out 1
!
access-list 1 permit any
Router B
!
router igrp 100
default-information allowed in 1
!
access-list 1 permit any
The thinking here was to originate a default route (0.0.0.0) from Router A
in OSPF and try to redistribute this into IGRP..... it didn't work. Maybe I
just configured it wrong or maybe it's just not possible. I don't know. This
is the second time I've attempted to get this working to no avail. Let me
know if you have any ideas.
Thanks,
Tony Olzak
BTW-I've just joined the list. I'm scheduled to take the test on Nov 19-20
in RTP.
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