Ethereal-dev: Re: [Ethereal-dev] Real Audio Packets

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Date: Thu, 11 Jan 2001 08:52:54 +0100
> I know that the initial handshake from client to real
> audio takes place on TCP port 7070, at which point
> further conversation is on UCP ports 6970 - 7170.
> I was hoping to use these facts to dissect real audio
> packets.

A couple of years ago I did some research into RealAudio and 
from that I seem to remember that it also uses the RTP/RTCP 
protocols, which are already in Ethereal. Via these protocols 
which run on top of UDP, the media is sent. The only problem 
is then how to decode the RealAudio control traffic in 
which you have to find the ports RTP/RTCP are going to use.

The difficult part is the "decoding" of the traffic to the 
TCP port. The UDP traffic is easypeasy, because it's already 
there.

The real audio site used to have also a full SDK which could 
be downloaded for free, but I'm not sure if that's still the 
case and under what conditions.

-- 
Andreas Sikkema
andreas.sikkema@xxxxxxxxxxx
"While you're waiting, read the free novel we sent you.  
 It's a Spanish story about a guy named `Manual'" - Dilbert