I didn't see what Derby edited out of Lama's post, but I'm guessing it was names of packet editors. For people wishing to get IP addresses of the people causing mischief, try a packet sniffer which does not have any editing or sending capabilities.

I'm mentioning two programs here, both freeware and open source, whose names should not be edited because they are completely legal and do not have capability to send or modify packets.

WinDump is a port of the Unix tcpdump, but it is command-line so may be difficult to use.

For a GUI-based program try Ethereal, which is fairly easy to use and is what I use for most of my needs.

Both of those programs use and require the WinPcap library. They both use filter strings, which are a bit complicated, but the string "tcp port 10052" is enough to capture the JJ2 packets in question.