Date Added: Dec 2009
Many organizations and many home users have deployed WiFi networks permitting external users to connect to the Internet through their networks. Such WiFi sharing poses many security risks for the visited network as well as for the visiting user. This paper focuses on the recently introduced concept for tunneled WiFi roaming in which the infrastructure of the visited network is considered as part of the security architecture. A secure layer-2 tunneling between the user's device and his home network is performed by the visited network only after the successful authentication of all three parties.