Configuration doubt

I have a hotSpot that give access to the internet for my users. I use IPCOP with advproxy addon like a point controller. So when a user try to aceess the internet IPCOP (advproxy) ask for a username and password and then try to authenticate the user in the radius server. Everything is great so far

figuration doubt

I found a nice paper about freeradius+mysql, so far everything is installed and working fine. My guestion is which field of my radius database (db_mysql.sql) i have to put Session-Timeout attribute to limit the use of the Internet from my HotSpot users?

Configuration doubt

Hi all. I'd like some help to configure my Radius server. My Radius authenticates users from my HotSpot to access the internet. I want to limit the uses to access the Internet, i did try Session-Timeout attribute but don't work so far. This is my users file: mike Auth-Type = System, User-Password