Swift check out rentacoder.com and find a coder who can put you toghether a script that is working on IP based limitation and thats it. You can probably get away with 50$ and find some indian guy to do it for you ;) They probly already have such scripts written and can make it work for you as well :)
Limiting downloads on a webpage by IP address
Miscellaneous Forums/General Discussion/Limiting downloads on a webpage by IP addressThe forum is locked. These are the original blitzbasic.com forums, kept so they can still be read. No new topics, replies or edits can be made here. To join in, head over to the Blitz3D+ forums.