Rascal,
Ya I got it. Thanks. I found out it's a online game. Let's me explain. It's a application game(gambling) need to install on my client side computer. When the user bet, it's used to send a transaction to the server side and the server respond transaction, and send the signal result back to my client computer. For example, horse racing..it will send the betting money to the server side and server response the transaction, and the result..the horse suppose to win on this race back to my client. The application run it base on the server result(example Horse number 3) responsed from the server. I guess it's a java game. Well, I can restrict user to install the on my side. Is that anyway I can trace the server side ip so that I can ban the server ip.