From: Michel Grossenbacher (pashtuk@gmail.com)
Date: Fri May 16 2008 - 08:40:55 ART
Hi Chuck
Can you provide your FR and OSPF configs for all three Routers?
best regards
Michel
On 16/05/2008, Chuck Ryan (chryan) <chryan@cisco.com> wrote:
>
> Hi Hong,
>
> I dont have any problem establishing adjacencies with or without the
> neighbor statements configured under the ospf routing process. That is
> what I don't understand. I thought with a network type of non-broadcast,
> you have to manually define your neighbors on your DR in order to
> establish adjacencies. As it turns out for me, that's not the case. I
> can establish ospf adjacencies with the neighbor statements AND without
> the neighbor statements.
>
> I'm trying to find out why this works with no neighbor statements
> configured, and no broadcast statement at the end of my frame-relay map
> statements.
>
> Thanks,
>
> Chuck
>
> ________________________________
>
> From: Hong Chan [mailto:howard.chan34@gmail.com]
> Sent: Friday, May 16, 2008 12:50 AM
> To: Chuck Ryan (chryan)
> Subject: Re: ospf network type non-broadcast
>
>
> Where is your DR? Is that on the r1?
> Try to add "ip ospf priority 0" on r2 & r3, add neighbor statement on
> r1. If still not able to form neighborship, try debug to see how's the
> hello packet talking.
>
>
> 2008/5/16 Chuck Ryan (chryan) <chryan@cisco.com>:
>
>
> Hi GS,
>
> I have a question about the ospf network type, non-broadcast. In
> a
> simple 3 router pod, with r1 being the hub and r2 and r3 being
> the
> spokes, I've been reading how you need to configure a neighbor
> statement
> under r1 in order to establish ospf adjacencies with r2 and r3.
>
> When I lab it up and try it, it does work. What I have also
> found out,
> is that no neighbor statement is necessary in order to get ospf
> adjacencies up between r1 and r2, and r1 and r3. Frankly, I
> don't see
> the difference whether I manually define neighbors or not, the
> results
> appear to be the same.
>
> Can someone explain this behavior? I thought that if you do not
> specify
> the neighbor statement, then the adjacencies will not come up,
> but that
> doesn't appear to be the case. Also, I am not using the
> "broadcast"
> keyword on my frame-relay map statements.
>
> Thanks,
>
> Chuck
>
>
>
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