hi there, I am writing a authentication system for a public Cisco System laboratory of a university. This system allow user to subscribe a cisco device in a certain time and during that time, the subscriber should be able to login that device. I have already build a FreeRadius server and configure my Cisco device to authenticate user via Radius. But I have no idea how to configure FreeRadius to control the login time. For example, a user subscribe a device named 'Test1' for 'July 30, 2011' from '10:00 a.m.' to '12:00 p.m.'. He should be able to login 'test1' during that time, but not before or after. I know there existed a module named 'rlm_logintime', but it seems like that module can only supply me with scheduled login plan, not a certain time period. So could you give me some advice? Thanks. BTW: I am runing FreeRadius 2.1.11 on a FreeBSD 8.2-RELEASE system. A MySQL database is also running for FreeRadius.