From: Connary, Julie Ann (jconnary@xxxxxxxxx)
Date: Wed Sep 20 2000 - 18:37:35 GMT-3
Hi all,
How about a summary address in router a under router ospf:
summary-address 172.17.59.0 255.255.255.0
I did this and got the 172.17.59.0 into the igrp. I tried this in the lab
and connected two routers with
a serial connection and used the 172.17.60.0/24 address on the serial
connection. After adding the summary
route, I was able to see the 172.17.59.0 subnet at router b. I do not think
you can get the sub-subnets of
172.17.59.0 into igrp due to the classless nature of the protocol -
especially because the subnet masks are not consistent and are not
directly attached.
plus - I do not understand how an ip default-network command would work
here - can you post the config for the
example below. Do you mean ip default-network 172.16.59.0? I'm going back
to the lab to test this one out.
Thanks,
Julie Ann
At 02:46 PM 9/20/2000 -0500, Daniel Keller wrote:
>Tony,
>
>The only way to do this without adding static routes is to add a
>default-network command at router A. The things to remember in doing this
>is that the default network must point to a route that router A knows
>about and you must keep it classfull. For instande, say that router A
>also knows about network 10.1.1.0/24. Then, to send a default to router B
>you need to configure "ip default-network 10.0.0.0" glabally in router
>A. If you made the mistake of putting "ip default-network 10.1.1.0" in
>the router, you will see that a static route will be inserted into the
>config automatically, and you said that static routes are not allowed.
>
>Oh yes, one last thing. Make sure that router B has "ip classless"
>configured also in order to make this work. Everyone else, if I am wrong
>in any way or if I forget something, please add to this.
>
>I will also be in RTP on Nov. 20 taking my lab test. See you then!
>
>Dan Keller
>
>
> >>> "Mary Weidner" <aolzak@buckeye-express.com> 09/20/00 02:17PM >>>
>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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