Hi all, I'd like to use FREERADIUS as an authentification method for mobile phones, but I'm not sure A) if this is possible and B) how to configure as I'm a newbie. Please find following scenario: A mobile phone user would like to access my server behind the proxy/gateway by using a gprs connection of an official provider (e.g. vodafone). Currently the mobile phone builds up a gprs connection to the providers network and send a get.request to the server through the proxy/gateway. My proxy/gateway simply forwards the request to the server but can not authentificate it. Especially authentification gets important for the application called "MMS-Multimedia Messaging Service". In this case the client POSTs a message, but leaves the sender-header in the message empty (=asks the network to insert the proper information). Then my proxy/gateway can not insert the proper information, but the server which has to process this request requires the sender-header to perform billing actions for example. Now I was told that RADIUS is the solution. RADIUS is able to detect the actual sender information and delivers this information to the proxy/gateway which is then able to insert the missing value into the sender-header and everybody's happy ;) Someone was able to follow my thoughts? What's currently available? A proxy/gateway, mobile-phones, GPRS-connectivity and a RedHat machine for freeradius. What's needed? Some support in configurating freeradius. Comments are really welcome, Rgds. Marc