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- Newsgroups: comp.dcom.sys.cisco
- Path: sparky!uunet!ukma!darwin.sura.net!spool.mu.edu!yale.edu!news.yale.edu!watt-alan
- From: watt-alan@net.yale.edu (Alan Watt)
- Subject: Re: Redistribution of routing information
- Message-ID: <1992Nov16.165648.6560@news.yale.edu>
- Originator: swatt@mickey.CS.Yale.Edu
- Sender: swatt%mickey@net.yale.edu (Alan Watt)
- Nntp-Posting-Host: mickey.ycc.yale.edu
- Organization: Yale University, Computing & Information Systems
- References: <1992Nov13.234956.2167@BofA.com>
- Date: Mon, 16 Nov 1992 16:56:48 GMT
- Lines: 62
-
-
- In article <1992Nov13.234956.2167@BofA.com>, alan@BofA.COM (Alan Hobesh) writes:
- |> RE: Redistribution of routing updates
- |>
- |> We have a cisco router in NY that runs RIP and IGRP. The network
- |> 192.9.200.0 (class A) is directly connected. The router learns
- |> about a network 192.9.201.0 from a different router (not Cisco)
- |> that uses RIP to advertise this route.
- |>
- |> Routing tables look like this:
- |>
- |> R 192.9.201.0 [120/1] via 192.9.200.220, 0:00:09, Ethernet0
- |> C 211.211.1.0 is directly connected, Serial1
- |> C 192.9.200.0 is directly connected, Ethernet0
- |>
- |> A second cisco router in SF is connected via serial 1 to NY. When
- |> we distribute RIP via IGRP, the router in SF only learns
- |> about 192.9.200.0. This router can only see 192.9.201.0
- |> when we run RIP in SF. We would prefer to not run RIP in
- |> SF, only IGRP. Why can't the SF router see the second RIP
- |> network when we redistribute the RIP updates via IGRP?
- |>
- |> routing table in SF
- |>
- |> I 192.9.200.0 [100/8576] via 211.211.1.2, 0:00:00, Serial0
- |> C 211.211.1.0 is directly connected, Serial0
- |>
- |> Thanks.
-
- You may be using the "redistribute" command incorrectly. The "redistribute"
- command in any router protocol section lists the protocol *FROM* which
- to take routing information to be distributed under the current protocol
- section. That is, to redistribute RIP-derived information via IGRP:
-
- router igrp 999 ! or whatever your IGRP AS number is
- network 211.211.0.0
- network 192.9.200.0
- redistribute rip
-
- If instead you have:
-
- router rip
- network 211.211.0.0
- network 192.9.200
- redistribute igrp 999
-
- You would get the behavior you describe.
-
- The other possibility is your configuration lacks a "default-metric"
- statement in the igrp router configuration. Ours has:
-
- router igrp 999
- default-metric 200 1000 250 200 586
-
- I can't recall offhand what all those numbers mean, but it's necessary
- when redistributing RIP as otherwise there is no way to convert RIP
- metrics into IGRP.
- --
- Alan S. Watt
- Yale University Computing and Information Systems
- Box 2112 Yale Station (203) 432-6602
- New Haven, CT 06520-2112 Watt-Alan@Yale.Edu
-