Patent ID: 8724506

Claim:
A method of detecting a situation of double attachment of a user equipment, said user equipment comprising: a first component configured to communicate with a wireless network, and a second component configured to communicate with a wired network, the double attachment situation being defined as concurrent connections of the user equipment to both the wireless network and the wired network, wherein the connections with the wired and the wireless networks are established by sending respective connection configuration requests, in accordance with a predetermined connection configuration protocol, from the user equipment, each of the respective connection configuration requests comprising a same user equipment identifier, wherein the user equipment identifier enables the identification of the user equipment within the connection configuration protocol, and wherein the method comprises: a) monitoring connection configuration requests sent on at least the wireless network, b) analyzing the content of the monitored connection configuration requests and extracting user equipment identifiers from the monitored connection configuration requests, c) determining whether a connection configuration request sent on at least the wired network comprises a user equipment identifier identical to at least one user equipment identifier which has been extracted, and d) raising an alarm if the determination is positive.