How does suba ban people?

Do they do it by name or ip? I had to ask and yes i couldnt find anything in previous topics. And hopefully if others were wondering by posting this they could find out if someone knows the answer. Thanks guys.

I guess they ban your Ip with hackshield... because if they ban you from hacking in crossfire you get banned from combat arms wich uses hackshield too XD
I know cuz it happened to me once and I had to reinstall my Os for being able to play again XD