Ethereal-users: [Ethereal-users] libpcap file format and two more questions

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From: Vladimir Lancov <lanc@xxxxxxxxxxxxxxxx>
Date: Thu, 16 Jan 03 20:22:35 +0300
To: ethereal-users@xxxxxxxxxxxx

1.If anybody knows, tell me please where can I find description of Ethereal's
capture file format (libpcap file)?

2. After sniffing RealPlayer, Ethereal produces console window with repeating
messages: "Frame 226: rtsp: unknown transport".
What does that mean?
What to do with it?

3. Why Ethereal's protocol dissector doesn't recognize Yahoo Messenger protocol
(YMSG) packets, despite of its presence in protocol list?

WBR, Vladimir Lancov.