This is enough now.
which ports are normally being used with Counter Strike Source on Wateen's WiMax. ofcourse you guys should know which servers are yet popular in Pakistani gamers. and so the ports with them.
I just want to stop this in my Home.
I've blocked all ports from 27005 to 27055, which I got from web search that they might cover some of the Popular CSS servers, Half Life servers, or more some thing. and also as i found that all the servers which are being hosted under Pakistani ISPs all are just inside this range of ports. mostly the 27015-16-17
but I think this rule in the Router is not blocking what I want. my little bro is just able to play online as he is used to.