How to desactivate freeradius to open the network ?

[via.lej at free.fr]

Hello,

      I use Freeradius on Debian with mac-based authentification along with a MySQL
database containing the mac addresses (as Login & Password). I would like to open
the network to everyone, so I wonder how to make freeradius to authorize any
mac address to open the network ?

Regards,
RedVivi