What do you mean when you speak about parsing? Infact, if i give tcpdump a
filter like "-T rtp src or dst host___"i can see on screen not only RTP, but
also other packets. This happens even if i don't perform a capture, but i
analyze only traffic between two hosts forcing packets to be interpreted the
RTP type.
Best regards.
Maurizio
----- Original Message -----
From: "Bill Fenner" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Cc: <[EMAIL PROTECTED]>
Sent: Wednesday, July 18, 2001 5:20 PM
Subject: [tcpdump-workers] Re: RTP packets
>
> >I noticed that inside capture file there
> >were also packets not belonging to RTP protocol such as ping, telnet and
so
> >much... I want to ask you if i have made a mistake or this is a bug and
if
> >there is a solution to this problem. Is it possible to dump only rtp
> >packets?
>
> The -T flag only affects the parsing, not capturing. If you want to
> capture only certain packets, you need to give tcpdump a filter (see
> the man page). Your filter for capturing RTP might look something like
> "host ____ and ( udp port ___ or udp port ___ )".
>
> Bill
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