Ethereal-dev: Re: [Ethereal-dev] Tethereal and dfilter expression ...

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From: Guy Harris <gharris@xxxxxxxxx>
Date: Wed, 1 Jan 2003 18:11:55 -0800
On Wed, Jan 01, 2003 at 04:02:57PM +0100, rmkml wrote:
> It is possible in Tethereal to specify port on dfilter expression ?

Yes - "tcp.srcport", "tcp.dstport", "tcp.port", "udp.srcport",
"udp.dstport", "udp.port", and the SCTP port number fields as well.

However, that's not really what you were asking.

What you're really saying is:

> example: (-Z is virtual option specify port)
> $ tethereal098 -ni fxp0 -Z 81 'http'
> 
> Yes, actually, if use http on port 81, tethereal not view http layer on
> this port !

"Can I, in Tethereal, force traffic on port 81 to be treated as HTTP by
Tethereal?"

The answer is "no", because nobody's written code to make it do so.  It
will be able to do so in the next version only if somebody contributes
code to make it do so.