How do they do that? Virtual Lan?

There are large number of gamers who play lan based games using GG-framework. Even I play Warcraft with other guys on internet.

But GG (Now Garena) client software does not seem to add any adapter or
driver for creating the virtual lan. I used netstat to find out, there
are two 'ESTABLISHED' TCP connections when I log in to GG.
When one logs in to GG, one has to start the game through this client and viola! one can see all the game servers and one can play as if the other guys are on lan with him.

How this is possible? Anyone got ideas?

Proxy would be my guess.

Viggy

What do you mean by proxy?

I can explain a bit more. If I am logged in to Garena client and started a game,
say Warcraft III and then I create a game server, The game server is visible only to all the people who have logged in to Garena.

I mean the client (Garena) acts as a proxy to the game. The game thinks it's connecting to another game server, or the internet. However, it's really connecting to your client program.

Viggy