A wireless telecommunications network, and a method of authenticating a message

摘要

A method is provided of authenticating a message from a femtocell base station in a wireless telecommunications network comprising a security gateway and a femto-gateway. The method comprising the steps of: checking by the security gateway that a source IP address in the message from the femtocell base station accords with that expected from that femtocell base station, and checking by the femto-gateway that the source IP address in the message accords with that expected from that femtocell base station by inspecting a database relating a femtocell base station identifier to source IP address data.