Wireshark · Ethereal-dev: Re: [Ethereal-dev] Distinguish RTCP packets from RTP

[ronnie sahlberg <ronniesahlberg@xxxxxxxxx>]

see
http://anonsvn.ethereal.com/viewcvs/viewcvs.py/trunk/epan/dissectors/packet-rtcp.c?rev=15939&view=auto

dissect_rtcp_heur()

On 10/17/05, Nuno Magalhaes <nunommagalhaes@xxxxxxxxxxx> wrote:

Hello all,

I have a question about ethereal development. How do you distinguish RTCP
packets from RTP packets?

I'm differentiating the packets through the port that must be odd for RTCP
and "Payload Type" field that must be 200 for SR or 201 for RR packets but I
still get garbage packets. How do you fully distinguish RTCP packets.

Because I'm getting to much RTCP packets in a short delay of time and most
the info I get is garbage, but with ethereal I don't get such garbage nor a
huge ammount of RTCP packets in a short delay of time.

Please tell me the secrets :),
I'll be fully appreciated,
Nuno Magalhaes.


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