From: Erick B. (erickbe@xxxxxxxxx)
Date: Fri Sep 07 2001 - 11:44:31 GMT-3
That solution will work with 12.1 mainline and below.
It will not work with 12.1T and above. 12.1T and above
don't let you redistribute a connected network part of
OSPF into OSPF externally. This is the correct
behavior I'm told and 12.1 mainline and below had
incorrect behavior. With debug ip ospf lsa-gen it will
say max-aged in 12.1T and higher.
--- tom cheung <tkc9789@hotmail.com> wrote:
> I wonder if you can redistribute the /28 subnet as
> "connected" on r5 so that
> it'll appear on r4 as external route. That way, the
> /28 external can be
> summarized on r4 using "summary-address".
>
>
> >From: Jason Gardiner <gardiner@sprint.net>
> >Reply-To: Jason Gardiner <gardiner@sprint.net>
> >To: CCIE <ccielab@groupstudy.com>
> >Subject: OSPF Virtual Link Question
> >Date: Fri, 07 Sep 2001 09:05:22 -0400
> >
> >I'm finishing up Fatkid 501 expert redistribution
> and came across an
> >interesting issue.
> >
> >Router 4 and 5 are connected through ethernet in
> area 2. Router 5 is
> >also connected to area 0. Router 4 is connected to
> area 3. Obviously
> >the area 3 must use area 2 as transit for the
> virtual link.
> >
> >It then appears that router 4 is treated as if it's
> in area 0, as far as
> >I can tell. Router 5 had a connected /28 that I
> tried to make into a
> >/24 announcement for router 4's redistribution into
> IGRP and RIP. I
> >used AREA 0 RANGE command. However, it still
> showed up as a /28 in
> >router 4's routing table. Once I removed the
> virtual link, the route
> >was announced as a /24.
> >
> >Basically, what I had to end up doing is adding a
> loopback address on R4
> >from an unused part of the /24 range and summarize.
> But this solution
> >seems so kludgy. Can anyone else think of another
> way to do this?
> >
> >--
> >Thanks,
> >
> >Jason Gardiner
> >Supervisor, Engineering Services
> >Sprint E|Solutions
> >
> >"You can swim all day in the Sea of Knowledge and
> >still come out completely dry. Most people do."
> >
> >- Norton Juster
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