proxy of CU-SEEME protocol

Phil Hochstetler (
Wed, 28 Feb 96 18:07:29 PST

As you may recall, I have a proxy of the CUSM protocol working except
for the chat part. Using a network packet monitor, I have confirmed
that the protocol for the talk/chat part puts an extra checksum byte
or bytes. This implies I need to regenerate the checksum to sucessfully
proxy the talk portion. Rather than spend my time reverse engineering
it from a packet trace, can anyone point me at docs that describe the
protocol for CUSM? (or at least the chat/talk portion?)