This is my first post on this site though I have been visiting it for some time. I have been writing some online games and they work great over my LAN. They are very basic applications. I started with them to get back into the programming saddle and get my skills back to where they needed to be. Anyway, I found out that there is a growing trend with ISPs to your NAT (Natural Address Translation) to manage their IPs. This is much worse than Dynamic IPs in terms of setting up a game. In fact, some commercial games will not work online via the net due to this. My LAN applications will not work. I need some direction towards information that can get me to modify my code so, it will use virtual sockets or whatever to bypass NAT and still function. I have clues that this might be accomplished by using Virtual Sockets. I have not found any good resources for doing this. This is likely to be an increasing problem game developers will need to work around. ------------------ Keep it simple