Ethereal-users: Re: [Ethereal-users] ISO8073 OSI COTP over Ethernet

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From: Guy Harris <guy@xxxxxxxxxx>
Date: Thu, 22 May 2003 13:19:55 -0700
On Thu, May 22, 2003 at 10:32:39AM +0100, CNS - Matthew Bradley wrote:
> I'm trying to dissect COTP running over Ethernet.

COTP running *directly* over Ethernet, without, for example, CLNP
involved?

If so, then:

> I only ever see the
> logical link control in Ethereal, which we dissect by hand.
> 
> I'm running Ethereal 0.9.12 pre-compiled binaries on Win 2K Pro, but I've
> also compiled up 0.9.12 on Cygwin with the same results.
> 
> Am I missing something or doing anything wrong?

...what you're doing wrong is assuming that anybody's ever put code into
Ethereal to handle COTP running directly over Ethernet; nobody has.

If there's a standard Ethernet type or LLC SAP for COTP (not CLNP,
*COTP*; 0xFE is a standard SAP for CLNP, and Ethereal *does* recognized
that - as CLNP, *NOT* COTP), then let us know what it is.