Capture the MAC address of VPN connecting devices in FreeRadius

Hi All; Is it possible to capture in Freeradius the MAC address of a device connecting via a VPN server (Cisco VPN 3000 or Microsoft PPTP Server), pls? The user has a Username/Password Combination which isn't the MAC Address. Thank you. Lucio _________________________________________________________________ See the most popular videos on the web http://clk.atdmt.com/GBL/go/115454061/direct/01/