Overlord, what do you think of:
Detection like this: "0E" to determine it is joining, and then at the first place out of the allowed just make one filter for each possible hexvalue? Then block all such packages. Nvm, I just realized that that is like many combinations -.-

Is there any program that can simply filter out too long packets? WPE is great, but it could really use that function.

Oh, and for private games, it would be a good idea to just block all packets beginning with XX 0E when all players are in server. Maybe it can be added to the "official filter"? It would suck if jj2wc-games were interrupted by frequent crashes like this...