I have config chillispot+ freeraduis + mysql and I need to assign a subnet different for a every user (IP address, gateway and broadcast diffrent for all users).

For example, if logging a user_A the Chillispot will be to assign an IP address, gateway and broadcast for this client, and if a user_B logging the chillispot will be to assign an IP address, gateway and broadcast for this user and diffrent to user_A.

Please I need to know if I wat is possible.
Im from Ecuador and my English is not very good! Sorry!