Re: OSPF neighbor on non-broadcast OSPF network type

This is alittle off-topic. But I've seen what you mentioned below and it's
caused some wierd problems for me PIM. I had PIM neighbors forming between
routers with "no frame-relay inverse-arp" and "no arp frame". Routers in
totally different subnets and no frame maps between each other forming PIM
nighbor relationships lol!

Took me half an hour to figure out I had these 0.0.0.0 frame maps all over
the place and I couldnt get rid of them. I had to reboot everything to make
them go away. What causes this?
Chris

"Also take a look at the frame relay mappings show frame-relay map
If you have en entry "0.0.0.0" this could be the problem.

Santiago E"

On Sun, May 24, 2009 at 7:27 PM, Anantha Subramanian Natarajan <
anantha.natarajan_at_gravitant.com> wrote:

> Hi Joe and All,
>
> Tried recreating the same config and the neighbor didn't come up as
> expected........Thanks for all ur help ..Next time will keep the topology
> intact :) ,whenever I see the different characteristics then expected
> ......
>
> Regards
> Anantha Subramanian Natarajan
>
> On Sun, May 24, 2009 at 6:17 PM, Joe Astorino <jastorino_at_ipexpert.com
> >wrote:
>
> > I have not tested this scenario, but perhaps you had it non-broadcast on
> > one side and broadcast on another at first, then through the course of
> your
> > experimentation changed them both to non-broadcast and one side still had
> > knowledge of the other neighbor from the previous contact or something
> > weird...who knows. The important thing here is that you truly understand
> > every possible network type matchup and all the possible timers as well
> as
> > how to get them up and running.
> >
> >
> > Regards,
> >
> > Joe Astorino
> > CCIE #24347 (R&S)
> > Sr. Support Engineer IPexpert, Inc.
> > URL: http://www.IPexpert.com <http://www.ipexpert.com/> <
> http://www.ipexpert.com/>
> >
> >
> >
> > ------------------------------
> > *From:* Anantha Subramanian Natarajan [mailto:
> > anantha.natarajan_at_gravitant.com]
> > *Sent:* Sunday, May 24, 2009 7:14 PM
> >
> > *To:* Joe Astorino; Cisco certification
> > *Subject:* Re: OSPF neighbor on non-broadcast OSPF network type
> >
> > No problem joe ...I may be fat fingered but I was sure when I saw it
> and
> > just moved on to different topology as it was not the concern during that
> > time and meantime posted the question to u all .
> >
> > Thanks
> >
> > Regards
> > Anantha Subramanian Natarajan
> >
> > On Sun, May 24, 2009 at 6:11 PM, Joe Astorino
> <jastorino_at_ipexpert.com>wrote:
> >
> >> I'd really have to see the configurations to believe that one : ) No
> >> offense, but non-broadcast on both sides with no neighbor statement just
> >> simply won't work as far as I know.
> >>
> >>
> >> Regards,
> >>
> >> Joe Astorino
> >> CCIE #24347 (R&S)
> >> Sr. Support Engineer IPexpert, Inc.
> >> URL: http://www.IPexpert.com <http://www.ipexpert.com/> <
> http://www.ipexpert.com/>
> >>
> >>
> >>
> >> ------------------------------
> >> *From:* Anantha Subramanian Natarajan [mailto:
> >> anantha.natarajan_at_gravitant.com]
> >> *Sent:* Sunday, May 24, 2009 7:08 PM
> >> *To:* Joe Astorino; Cisco certification
> >> *Subject:* Re: OSPF neighbor on non-broadcast OSPF network type
> >>
> >> Hi Joe,
> >>
> >> Both sides were non-broadcast and later me changed the topology to
> >> broadcast on both sides to do some other scenario..I am trying to erase
> the
> >> config and try to recreate the same topology to see whether it comes
> back
> .
> >>
> >> Thanks
> >>
> >> Regards
> >> Anantha Subramanian Natarajan
> >>
> >> On Sun, May 24, 2009 at 6:05 PM, Joe Astorino
> <jastorino_at_ipexpert.com>wrote:
> >>
> >>> Generally you do need it, but without further information it is really
> >>> difficult for us to tell you exactly. We need to know the network type
> >>> on
> >>> the other side as well.
> >>>
> >>>
> >>> Regards,
> >>>
> >>> Joe Astorino
> >>> CCIE #24347 (R&S)
> >>> Sr. Support Engineer - IPexpert, Inc.
> >>> URL: http://www.IPexpert.com <http://www.ipexpert.com/> <
> http://www.ipexpert.com/>
> >>>
> >>> -----Original Message-----
> >>> From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf
> Of
> >>> Anantha Subramanian Natarajan
> >>> Sent: Sunday, May 24, 2009 2:25 PM
> >>> To: Cisco certification
> >>> Subject: OSPF neighbor on non-broadcast OSPF network type
> >>>
> >>> Hi All,
> >>>
> >>> I ran OSPF on an non-broadcast OSPF network type between R1 and R2
> and
> >>> saw the neighbor came up without configuring explicitly "neighbor "
> >>> command
> >>> under the OSPF process.I was assuming the neighbor command is
> >>> required.Kindly let me know on this and also if missed some basic on
> it.
> >>>
> >>> Thanks
> >>>
> >>> Regards
> >>> Anantha Subramanian Natarajan
> >>>
> >>>
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> >>> 05/24/09
> >>> 07:09:00
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Received on Sun May 24 2009 - 22:50:47 ART