One of our customers uses an authentication service from Mideye, which is described this way: The end-user requests access to a protected application, and is prompted for a user name and password. If the correct credentials have been provided, a one- time password (OTP) is presented on the user's mobile phone. The user is requested to enter the OTP, and if the correct OTP is returned, access is granted. http://www.mideye.com/index.php3?bredd=268.5 It should be simple to generate a one time password, throw it into a database,send it via sms and make it available for the next time, the user requests access. The problem here seems to be, that after a first successfull authentication another one with only a new password but the already entered username has to be done. Can this be realised with an actual freeradius? If so: Where can I find documentation about it? Norbert Wegener