Rogue Spear is one of my great weaknesses. But one of the things that really irked me was that I could not host a game. I'm not that strong a player ”any sort of lag really, really trips me up. And since the only way to avoid lag in Rogue Spear is to host a game, I had to do some thinking. After poking through the game settings, I found that it used three ports: 2346, 2347, and 2348. After that, it was just a matter of slapping together these rules:
ipmasqadm portfw -a -P tcp -L 24.26.178.68 2346 -R 192.168.2.101 2346
ipmasqadm portfw -a -P tcp -L 24.26.178.68 2347 -R 192.168.2.101 2347
ipmasqadm portfw -a -P tcp -L 24.26.178.68 2348 -R 192.168.2.101 2348
Simple, eh?