tcpreen 1.4.3-0.1 (hppa binary) in ubuntu gutsy

 TCPreen is a small tool for monitoring a TCP connection.
 It works like a bridge between the server and the client in a TCP
 connection, displays any data that is sent either way, and optionally
 logs everything to a file.
 .
 It is mainly useful if you want to understand what informations a
 client and a server exchanges during a TCP session. It was originally
 meant to help reverse engineer proprietary TCP-based protocols or
 protocol extensions.