Thanks Pamela, I found the same info after a bit of searching on the Cisco
site. But I know I read it somewhere, maybe I wasn't paying attention to
what I was reading.
Karl
-----Original Message-----
From: Montgomery, Robert WARCOM Contractor
[mailto:[EMAIL PROTECTED]]
Sent: Thursday, February 01, 2001 3:45 PM
To: Pamela Forsyth; [EMAIL PROTECTED]; [EMAIL PROTECTED]
Subject: RE: IP unnumbered and OSPF
>From the Cisco Press book:
"When an unnumbered interface is configured, it references another interface
... When enabling OSPF on the unnumbered int with the network command, use
an 'address wildcard-mask' pair that refers to the interface to which the
unnumbered interface is pointing."
-----Original Message-----
From: Pamela Forsyth [mailto:[EMAIL PROTECTED]]
Sent: Thursday, February 01, 2001 1:07 PM
To: [EMAIL PROTECTED]
Subject: Re: IP unnumbered and OSPF
Karl, Tom,
I think you are both mistaken--in fact, RFC 2328 contains multiple
references to unnumbered point-to-point links and what should be done about
them when developing an OSPF implementation.
The router doesn't need an exact interface IP address on a point-to-point
link in order to form a neighbor relationship. All OSPF packets on a
point-to-point link are going to be sent to the multicast address
224.0.0.5, and it really doesn't matter what IP address is the source in
those packets. The neighboring router is identified by its router ID, not
its address on the interface.
I have set up OSPF with IP unnumbered, and it worked just fine.
Pamela
At 02:07 AM 2/1/01 -0500, Tom Pruneau wrote:
>Greetings Karl
>
>I can't remember exactly where I read that , but I did. More specifically
>you can't have ip unnumbered on an interface running OSPF because there is
>no address to be neighbors with.
>
>If what you want to do is have a router with some ospf interfaces and some
>other interface not running ospf, and you want unnumbered on the non-OSPF
>interfaces, I think taht would be OK.
>
>Tom
>
>
>
>
>
>At 03:22 PM 01/31/2001 -0500, Karl R. West wrote:
> >Refresh me please...
> >
> >I remember reading some where why you should not have IP UNNUMBERED
running
> >on the router your going to put OSPF on.
> >Can some one refresh my memory.
> >
> >
> >Regards,
> >Karl
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