From: Connary, Julie Ann (jconnary@xxxxxxxxx)
Date: Wed Dec 27 2000 - 17:49:02 GMT-3
Maybe it does not matter - And maybe it is correct and cannot be changed. The
lab scenario just said " summarize the networks on all area border router
so that only one route to the area appears int eh routing table of other
routers" - Perhaps I should take this to mean all areas except area 0 -
since all routers touch area 0 and I am trying to accomplish
something that can;t be done.
Thanks,
Julie Ann
At 12:40 PM 12/27/2000 -0800, you wrote:
> Julie Ann,
>
> If the interface is a loopback, you have to... JUST KIDDING!!! :-)
>
> I've noticed this before. A point-to-multipoint will advertise
> both a host route as well as the mask on the interface. I always
> assumed this was default behaviour for OSPF since in a p-t-m there
> is no DR/BDR selection and as you know, in a p-t-p connection, the
> OSPF Link State DB always makes two host entries for that link.
> So, I figured in p-t-m, it is basically behaving in the same way.
>
> What bothers me, is, why you asked the question. I've always
> shrugged and said, no big deal, doesn't hurt anything, but now
> i'm wondering if this is a gotcha on the lab (?). If so, maybe
> it is a trick question and you have to filter out the host route
> in redistribution....
>
> Randy
>
>
> >
> > Hi
> >
> > These are not loopbacks,
> >
> > they are frame-relay point-to-multipoint interfaces.
> >
> > Julie ann
> >
> >
> > At 12:07 PM 12/27/2000 -0800, Chuck Larrieu wrote:
> > >On the particular interface ( loopback? ) ip ospf network point-to-point
> > >
> > >-----Original Message-----
> > >From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> > >Connary, Julie Ann
> > >Sent: Wednesday, December 27, 2000 12:01 PM
> > >To: ccielab@groupstudy.com
> > >Subject: ospf point-to-multipoint networks and the /32 route
> > >
> > >Hi all,
> > >
> > >how do you get ospf to not advertise a /32 network for a
> > >point-to-multipoint network. In the
> > >ospf database on another router when I issue "show ip ospf database
> router"
> > >I see the following:
> > >
> > >Link connected to: a Stub Network
> > > (Link ID) Network/subnet number: 150.100.32.2
> > > (Link Data) Network Mask: 255.255.255.255
> > > Number of TOS metrics: 0
> > > TOS 0 Metrics: 0
> > >
> > >Why does ospf see the point-to-multipoint frame-relay network as a stub?
> > >
> > >Thanks in advance,
> > >
> > >Julie Ann
> > >------------------------------------------------------------------------
> > > Julie Ann Connary
> > > | | Network Consulting Engineer
> > > ||| ||| Federal Support Program
> > > .|||||. .|||||. 13635 Dulles Technology
> Drive,
> > >Herndon VA 20171
> > > .:|||||||||:.:|||||||||:. Pager: 1-888-642-0551
> > > c i s c o S y s t e m s Email: jconnary@cisco.com
> > >
> > >------------------------------------------------------------------------
> > >
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