is the server window, linux sun?
If it’s a SUN server just use snoop. Type snoop at the command prompt and it will show you the packets as they pass through the server. Use grep to narrow things down a bit.
If it’s a linux box use tcpdump at the command prompt
If it’s a windows server use wireshark – install <a href=”http://www.wireshark.org/”>wireshark </a>and run it.. you’ll see all connection hitting the server. In the options of the packet capture set it to promiscuous mode