From: Aamer Kaleem (kaleemaamer@yahoo.com)
Date: Tue Nov 19 2002 - 03:50:26 GMT-3
I am not sure it will work or not, but here is an
idea:
Under router rip, redistribute connected using a route
map and filter them. Also redistribute ospf and donot
filter anything here...
sounds crazy, but might work..
Aamer
--- Donny MATEO <donny.mateo@sg.ca-indosuez.com>
wrote:
> Hi Frank,
>
> I don't think this is possible. There is no
> mechanism in RIP to differenciate between route
> learned
> internally or route learned from other network
> protocol by default ( you can say metric, but no
> update filtering based on metric, beside it won't
> even make it to the database so no use).
> And if you redistribute ospf into RIP by default rip
> will favor to advertise the "connected" route
> rather then taking it from OSPF in that case, I
> don't even think the redistributed route would be in
> the RIP database.
>
>
> Donny
>
>
>
>
>
> frank.yu@japan.bnp
>
>
> paribas.com To:
> dennis.d.adekola@britishairways.com
>
> Sent by: cc:
> ccielab@groupstudy.com
>
> nobody@groupstudy.
> Subject: Re: is this possible?
>
> com
>
>
>
>
>
>
>
>
> 19-11-2002 09:50
>
>
> Please respond to
>
>
> frank.yu
>
>
>
>
>
>
>
>
>
>
>
>
> All,
>
> Thanks for the idea. Maybe I did not explain it
> clearly, let me make it
> a bit clear. The requirement is to make all the
> routers running RIP learn
> the route in OSPF domain by redistribution from OSPF
> rather than directly
> learning the route by rip advertising from the
> border router (the router
> running both rip and ospf).
> As we know, RIP is a classful routing protocol,
> so we can only put
> classful "network x.x.x.x" under "router rip"
> configuration mode. So if the
> scenario is class B address with /24 subnetmask all
> over the place, when we
> enable rip on the border router, the ip addresses in
> ospf domain which is
> on the border router also has been included in RIP
> domain. What bothered me
> is how can we prevent these ip addresses being
> included in RIP domain?
> While all routers in RIP domain still need to be
> able to reach these ip
> addresses in ospf domain by redistribution from ospf
> on border router. Is
> this possible?
>
> As far as I know, passive interface won't be the
> solution. Because it
> only disable the border router from updating the
> routing information
> through that certain interface. And I don't see how
> filter list works.
> Because if we filter the route being advertise to
> other rip routers, the
> route redistributes from ospf will also be filtered.
> Right?
> Correct me if I am wrong and sorry for the
> influent English. That's
> something I need to work on after this test. :-)
>
> Frank
>
>
>
> Internet
> dennis.d.adekola@britishairways.com@groupstudy.com -
> 11/18/2002 07:35 PM
>
>
> Please respond to
> dennis.d.adekola@britishairways.com
>
> Sent by: nobody@groupstudy.com
>
> To: Frank Yu
>
> cc: ccielab
>
>
> Subject: Re: is this possible?
>
>
> Frank,
>
> You can make you of passive interfaces
> That is, place a passive interface on the
> interface/s you don't want RIP to
> shout out from
> You can also do the same for OSPF
>
> Hope this helps
>
>
> Dennis
>
>
>
>
> frank.yu@japan.bnpparibas.com@groupstudy.com on
> 18/11/2002 08:35:04
>
> Please respond to frank.yu@japan.bnpparibas.com
>
> Sent by: nobody@groupstudy.com
>
>
> To: ccielab
> cc:
> bcc:
> Subject: is this possible?
>
>
> Group,
>
> If a router running both rip and ospf, all the ip
> addresses on the
> router are class B with /24 subnetmask.
> When I enable rip on the router, I have to enable
> the whole classB
> network, in this case the ip addresses configured in
> ospf domain also
> belong and advertise through rip now.
> My question is, how could I prevent the ip address
> in ospf domain being
> advertised through rip directly, so the routers in
> rip domain only learn
> these route by the redistribution of ospf.
> Thanks in advance.
>
> Frank
>
>
>
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