From: Aaron DuShey (aaron.dushey@xxxxxxxxxxxxxxxxxxxxx)
Date: Thu Aug 24 2000 - 17:49:51 GMT-3
Sorry for this lack of clarity in original post, David had it right. I was
seeing if somehow IPX RIP and IPX EIGRP will autocommunicate with other
protocol disabled on the same interface. Something like what IGRP and EIGRP
will supposedly do. Situation is this
IPX EIGRP R1-------R2 IPX RIP
EIGRP<communicate?>RIP
RIP is disabled on R1. No EIGRP on R2.
The answer is no, this won't work. The only place where this type of
scenario will work is IGRP to EIGRP so far as I have been informed. Anyone
feel free to correct.
thanks for all the posts from everyone, they all helped me to understand
different scenarios anyway-
Aaron DuShey
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Shaun Nicholson
Sent: Thursday, August 24, 2000 11:01 AM
To: DHBrown
Cc: ccielab
Subject: RE: IPX RIP->EIGRP
First up it was not my original question I was trying to provide an answer
so I read into the question some slack as I found it dificult to understand
what the original poster was asking.
Secondly I think you will find you are incorrect you can disable an
interface from using IPX RIP or IPX EIGRP but it will still automaticly
redistribute between IPX RIP and IPX Eigrp if you have a connection between
two interfaces running either IPX routing protocol.
I know this for a fact especially across an IPX serial link as I have seen
people forget to enable IPX EIGRP on the far side of a circuit before and
IPX RIP was automaticly redistributed for them and I did not notice the
problem for nearly six months all worked fine for that whole period except
there was more bandwidth used than I would have expected on an IPX EIGRP
circuit.
I would agree that you would need both IPX routing protocols running on the
router but that is not how I understood the original question.
My reading and understanding of the question originaly posted was that only
the network number was disabled in IPX RIP on one side and IPX EIGRP on the
other. I sort of read into it that it seemed to work but the poster of the
question wanted to know why. I may have misunderstood the question as it was
only 4 lines long and the English was not very clear but IPX EIGRP will
automaticly redistribute into IPX RIP across any link.
I think we need more clarity on the original question from its originator to
get to the bottom of this one.
Follow this link to ciscos page where it states the following
Automatic redistribution. IPX RIP routes are automatically redistributed
into enhanced IGRP, and IPX enhanced IGRP routes are automatically
redistributed into RIP. If desired, you can turn off redistribution. You
also can completely turn off IPX enhanced IGRP and IPX RIP on the router or
on individual interfaces.
http://www.cisco.com/univercd/cc/td/doc/product/software/ios100/eigrp/41216.
htm
Anyone else want to jump in here and help me out especially the guy who
initialy posted the question to give us some clarity on the situation.
Shaun
DHBrown@pipeline.com on 08/24/2000 12:13:00 PM
To: Shaun Nicholson
cc: ccielab@groupstudy.com@Internet
Subject: RE: IPX RIP->EIGRP
No. The router will redistribute IPX EIGRP and IPX RIP, but in your
scenario
you have disabled IPX RIP and enabled ONLY IPX EIGRP on one, and only
enabled
IPX RIP on the other. (I changed your original question to use serial,
just
for clarity in the example)
R1 --Ether-- R2 --S0---S0-- R3 --Ether-- R4
--^--
EIGRP RIP
At the carat, R2 is only running IPX EIGRP on S0 and R3 is only running IPX
RIP on S0. So any IPX routes that come in from R2's Ethernet over either
RIP
or EIGRP will be in the IPX route table. Any IPX routes that come in from
R3's Ethernet over either RIP or EIGRP will also be in R3's IPX route
table.
HOWEVER, the routes will NOT pass from R2 to R3 or R3 to R2 because the two
do not share a common IPX routing protocol. At the same time, each CAN IPX
ping the others' serial IPX addresses. HTH,
David
(RTP lab 9/18)
Shaun Nicholson <Shaun.Nicholson@kp.org> wrote:
> If I understand this correctly then I would have to say yes they can route
IPX eigrp and IPX rip automaticly redistribute to each other therefore all
entries will appear in the routing table.
Shaun
DHBrown@PipeLine.com on 08/23/2000 08:52:00 AM
To: aaron.dushey@dushey-consulting.com@Internet,
ccielab@groupstudy.com@Internet
cc: (bcc: Shaun Nicholson/MD/KAIPERM)
Subject: RE: IPX RIP->EIGRP
Yes they can talk, no they can't route. You have to have the same routing
protocol on both routers for them to exchange routing information. If you
disable RIP on one side and enable EIGRP; then enable RIP on the other side
with no EIGRP, the two cannot route -- although they will communicate on
the
LAN they share by ping.
David
(RTP lab 9/18)
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Aaron DuShey
Sent: Tuesday, August 22, 2000 6:01 PM
To: CCIE (E-mail)
Subject: IPX RIP->EIGRP
situation
r2-e0------e0---r5---
r2 has IPX eigrp no ipx
5 has rip no IPX eigrp
can they talk? if so how?
Aaron DuShey
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