From: Jack Heney (jheneyccie@xxxxxxxxxxx)
Date: Wed Oct 25 2000 - 17:13:39 GMT-3
Sorry....I wasn't actually looking at the fatkid lab, I just assumed I
understood what you meant....Try posting the relevant configs (the
redistributing router and the igrp rouer) and routing tables.
Jack
>From: "Roger Dellaca" <rdellaca@bpopca.com>
>Reply-To: "Roger Dellaca" <rdellaca@bpopca.com>
>To: <ccielab@groupstudy.com>
>Subject: Re: OSPF Summarization on FR NBMA - weird problem
>Date: Wed, 25 Oct 2000 12:33:11 -0700
>
>that's an excellent point, but in this case it does not apply. The FR
>connects 3 routers in OSPF area 0; on of those reouters has an ethernet
>connection to another ospf area & redistributes into IGRP & that router
>connects over point-to-point HDLC to the IGRP router which doesn't show the
>routes.
>
> >>> "Jack Heney" <jheneyccie@hotmail.com> 10/25 12:28 PM >>>
>You probably couldn't see some of the OSPF routes because the OSPF router
>wasn't using them anymore....When the OSPF router initially advertised them
>to the IGRP router, the IGRP router (which can violate split-horizon
>because
>you are using a physical interface with frame-relay) advertised them right
>back....WHen the OSPF router heard the advertisement (with a lower
>administrative distance) from IGRP, it probably added these routes as IGRP
>routes, which would stop it from redistributing these routes into
>IGRP...When you switched to a multipoint subinterface, split-horizon was
>enforced, and the problem was solved...You could have accomplished the same
>thing with "ip split-horizon" on the physical interface on the IGRP router.
>hth,
>Jack
>
>
> >From: "Roger Dellaca" <rdellaca@bpopca.com>
> >Reply-To: "Roger Dellaca" <rdellaca@bpopca.com>
> >To: <ccielab@groupstudy.com>
> >Subject: OSPF Summarization on FR NBMA - weird problem
> >Date: Wed, 25 Oct 2000 11:12:18 -0700
> >
> >I was doing Expert Redistribution 501 Lab off of Fatkid. I did FR on the
> >interface (no subinterfaces) & set ip ospf network point-to-multipoint.
> >
> >On the IGRP router, I couldn't see some of the OSPF routes, even though I
> >had done the necessary summarization to get them to the same mask as the
> >IGRP.
> >
> >The solution used multipoint interface - I changed mine to that & it
> >worked! - with no other changes! Is Is that a known thing with OSPF?
> >
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