Hi everybody!! I'm using Freeradius since 6 months ago, and It works great. I'm Using freeradus + MySQL to store my users data in a database and authenticate it with an user and a password. Now I Have to attach to each user, 3 MAC-Address, so I'm editting my database (radcheck table) id username attribute op value 1 user1 User-Password := password1 2 user1 Calling-Station-Id = 00:11:22:33:44:55 It works great. Only user1 with password1 can access from the device with MAC-Addr 00:11:22:33:44:55, but I need to attach 3 MAC to each user, so I edit my databe: id username attribute op value 1 user1 User-Password := password1 2 user1 Calling-Station-Id = 00:11:22:33:44:55 3 user1 Calling-Station-Id = 33:44:55:66:77:88 And, in that moment user1 can't logging never. The user1 can't logging from a device with MAC-Addr 00:11:22:33:44:55 or MAC-Addr 33:44:55:66:77:88, or anyone. How can I do this? Thanks a lot!! Andres