Duplicate I.P. registrations

[BarKeep]

I would like to know if there is some way to stop people from creating a new account under the same i.p

[Paul M]

Given that many ISP's use proxy servers, meaning many users will appear to have the same ip, are you sure you want to ?

[bashy]

I aggree, this is a drastic measure to take as Paul says, many isp use the same IP addy for many accounts, its the MAC thats different, now...How about a hack that can detect the mac addy ;)