How to differeniate types of users

Wed Apr 7 16:48:16 CEST 2010

I have Radius v1.1.7 working great with eDirectory/LDAP, both running on SLES 10 SP3.   Right now we use it to control access to our wireless in the district, but its sort an all-or-nothing approach right now.  What we are trying to accomplish is to have
two SSIDs - one for students and one for staff.  As its setup now, anybody can connect to either one.  How would I be able to differeniate the two users?  I can use attributes and such, but how/where would that be defined?

Thanks for your help!

-Rob