From: Erick B. (erickbe@xxxxxxxxx)
Date: Tue Aug 21 2001 - 22:06:17 GMT-3
Hi,
You can also use policy-routing on the other IGRP
router. Default-network is okay if you have routes in
a different classfull boundary but if all your
networks are in same classfull boundary then its
rougher. If you search the archives you'll come up
with some previous discussions on this topic as well.
I remember some previous threads about using
summary-address to distribute out of OSPF but the docs
indicate this isn't possible yet some people say they
were successfull in getting it to work with some
versions of code or under certain conditions. Hmm.
--- Paul Crist <pcrist@netsync.net> wrote:
> The best method is to use a network that does not
> fall into your /16
> network, but that is in the routing table. For
> instance if you connect to
> an external network via a router, that is going to
> be your gateway to the
> outside world, and you have that as a /24 seen in
> IGRP use that network for
> your default statement.
>
> Paul Crist
> ----- Original Message -----
> From: "Jim Brown" <Jim.Brown@CaseLogic.com>
> To: "'Dietmar Gaar'" <strongbow71@gmx.at>;
> <ccielab@groupstudy.com>
> Sent: Tuesday, August 21, 2001 4:03 PM
> Subject: RE: tricky Redistribution OSPF --> IGRP
>
>
> > Inject a default route into IGRP with the default
> network command. This
> > doesn't create a static route if you specify a
> classful network.
> >
> > It is the only way I know of to provide
> connectivity to routes with
> shorter
> > prefixes than in the IGRP domain *** without using
> static routes***. Last
> > statement to reduce noise and feedback from post.
> >
> > Try this using 172.16.32.0 as the default network
> and 172.16.0.0 as the
> > default network or whatever major network you have
> in the OSPF domain.
> >
> > Of course the network you specify must be in the
> routing table, they key
> is
> > using the full class. Try it and note the
> difference.
> >
> > -----Original Message-----
> > From: Dietmar Gaar [mailto:strongbow71@gmx.at]
> > Sent: Tuesday, August 21, 2001 1:31 PM
> > To: ccielab@groupstudy.com
> > Subject: tricky Redistribution OSPF --> IGRP
> >
> >
> > Hi,
> >
> > I have a question about following Scenario:
> >
> > My workgroup contain 5 Routers and have a B-Class
> Adress Space available
> > with Prefixes start with /22 up to /29 configured
> - 3 Router running
> OSPF,
> > 2 * IGRP - there is only one Connection between
> the different Routing
> > Protocols.
> > This Router is OSPF & IGRP running and OSPF is
> redistributed into IGRP.
> > The mask of the outgoing Interface to the other
> IGRP Router is /24,
> therfore
> > all Prefixes with the same lenght will corectly
> appear in the Routingtable
> > of the only IGRP running Router.
> >
> > Some lenghter Prefixes I can summary with OSPF -
> no Problem.
> >
> > But what can I do with directly connected Networks
> they don4t have an /24
> > Prefix ?
> > There works no OSPF Summary.
> > And the second Problem are the shorter Prefixes -
> I can4t slice them...
> >
> > I4am searching only for possibilities without
> static Routes - are there
> any
> > ?
> >
> > Thanks for your Time,
> >
> > Dietmar
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