Chuck,
I've seen this when doing frame relay multipoint on
subinterfaces or NBMA on the main interface. I'm not
sure what's happening, but I think it has something to
do with not having a map statement that will match CDP
as a protocol. CDP is typically encapsulated in a
SNAP frame using a multicast destination MAC address
(0100.0ccc.cccc I think). Let the group know if you
find a fix. Maybe a 'frame-relay map bridge' command?
Chris M.
--- Chuck Larrieu <[EMAIL PROTECTED]> wrote:
> I got to wondering about this.
>
> I am working on a frame relay troubleshooting lab,
> and I have a situation in
> my lab where I am seeing all my routes as I expect.
> In other words, I
> believe I have solved the frame relay problem.
> However, in using that pod to
> check this CDP issue I find that CDP neighbors are
> indeed not showing up. I
> manually enabled CDP on all interfaces, and also ran
> CDP run in the root
> config menu. The debugs are indicating an
> encapsulation failure.
>
> As I said, all my routes are there and I have full
> ping ability from end to
> end. But no CDP.
>
> Interesting.
>
> IOS 12.1 something.
>
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]] On Behalf Of
> Roberts, Timothy
> Sent: Thursday, January 11, 2001 4:19 PM
> To: '[EMAIL PROTECTED]'; Roberts,
> Timothy
> Cc: [EMAIL PROTECTED]
> Subject: RE: Cant see CDP neighbor
>
>
> I Should have included in my last email that I
> already performed the cdp
> enable command.
>
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]
> Sent: Thursday, January 11, 2001 4:05 PM
> To: [EMAIL PROTECTED]
> Cc: [EMAIL PROTECTED]
> Subject: RE: Cant see CDP neighbor
>
>
> Robert make sure that you enable cdp on the
> interface. The command is "CDP
> enable". You have to be in config-interface mode.
> Let me know if this
> works??
>
>
> Eric Washington
> Banc Of America Securities - Japan
> Information Technology / IS
> [EMAIL PROTECTED]
>
>
>
> -----Original Message-----
> From: Roberts, Timothy
> [mailto:[EMAIL PROTECTED]]
> Sent: Friday, January 12, 2001 8:48 AM
> To: '[EMAIL PROTECTED]'
> Subject: Cant see CDP neighbor
>
>
>
> I have two routers connected back to back via two
> serial cables. I can ping
> each one from the other one. The problem is that
> they do not show up when I
> do a show cdp neighbor. I am sure that I am just
> overlooking something
> small.
> Thanks
>
> _________________________________
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