Patent ID: 8098619

Claim:
A method for allocating a temporary address to a mobile node of a telecommunications system, said temporary address being registered, in association with a permanent address of the mobile node, with a home agent responsible for forwarding a data stream to the roaming mobile node, the method comprising: obtaining, at the mobile node, respective temporary addresses of the mobile node for several of the system's access routers detected by the mobile node; collecting, at the mobile node, information relating to characteristics of said access routers; transmitting, from the mobile node to a temporary address management module of a mobility service provider, an address selection request comprising at least a portion of said collected information; processing the address selection request at the management module in order to select one of the temporary addresses for the mobile node; returning to the mobile node a message indicating at least one address prefix identifying the selected temporary address; on receipt of the message at the mobile node, configuring the mobile node so that it communicates through the system by means of the access router corresponding to said prefix; and updating the association between the selected temporary address and the permanent address of the mobile node with the home agent of the mobile node, wherein the address selection request further comprises a plurality of parameters relating to characteristics of interfaces of the mobile node interacting with the access routers for which the temporary addresses have been obtained.