multiple group membership & processing

[rabbtux rabbtux]

greetings,

I have users that should only be able to use 2 of 10 APs(chillispot
nas).  I found that when I create the following, the user can only
login to the desired AP.

Radcheck table
fred     User-Password       := mypass

radgroupcheck table
cust1  	Called-Station-ID  	==  	00-13-10-94-AF-3C

usergroup
fred      cust1    1

This works great, however, how do I expand this so that fred's login
works for two Called-Station-IDs?  Do I create another group with a
different priority?  Can't seem to get both groups to work as a
logical OR.

Thanks