Is it possible to use the MAC as the key

[Christoffer Dahl Petersen]

Hi!

I was wondering if it is possible to tell the Freeradius to use the MAC addr. as a validating key?
I would like to store all my clients MAC addr. in a db, and use it as a backend for Freeradius, then when the clients starts, the AP sends the clients MAC addr. to Freeradius and the MAC addr. is used as a token for validating.

/ Christoffer