RADIUS & PEAP

I am configuring a wireless network with EAP Authentication. I can connect successfully with the following line in my users file. testuser User-Password == "testing" I would like to be able to authenticate with ANY password. I tried using the "!=" operand, but that causes an MS-CHAP incorrect response error. Is there any way to make EAP authenticate with any password. If not, how can I have it authenticate against the /etc/passwd and /etc/shadow files? Thank you for your help, Adrienne Rau