Proxim AP-4000 MAC Auth w/multi VLAN assignment support

Hello, I am looking at setting up a group of Proxim AP-4000 wireless gateways. I want to be able to authenticate via the MAC address of each user's laptop WiFi NIC. I am trying to find the raddb tags required to send / receive the information to make this work. Can someone point me in the right direction as far as this goes? Much appreciated to all. Matt