From: Paul Crist (pcrist@xxxxxxxxxxx)
Date: Tue Aug 21 2001 - 17:38:51 GMT-3
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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