A friend of me is trowing in a LAN-Party for over 150 People..
He asked me to make him a program that sets the IP adres to something he determent.
His idea was to put the doors open so everyone can get a place.
When they for example put everthing on spot let's say 27 they go to a staffmember. Pay the €10,- then get a Password and the program.
They enter the password in the program and then the program put's him on the network with the IP (130.0.0.127 (The first 100 are for Crew)) instead of the one that you're connected to (110.0.0.0).
I also know that they are connected with a dhcp server what the hell that may be...

I've NO idea were to start and how to do this..
Can someone tell me were I can find a tutorial or a Sample Source code..
My idea was to fix this using a p2p connection that drops every 5 minutes every IP that's NOT in some kind of list.. But he needs to know exacly what player is in what place (thats why the IP).