Patent ID: 7937581

Claim:
A method for ensuring secure forwarding of a message in a telecommunication network, having at least one mobile terminal and another terminal and a security gateway therebetween, the method comprising: a) establishing a secure connection having a first address of the mobile terminal as a first end-point and a gateway address of the security gateway as a second end-point, b) the mobile terminal changing from the first address to a second address, c) while at the second address, the mobile terminal sending a request message to the gateway address of the security gateway to request the security gateway to change the secure connection to be defined between the second address and the gateway address of the security gateway, in response to the request message from the mobile terminal, the security gateway changing an address definition of the secure connection from the first address to the second address, and the mobile terminal sending a secure message in the secure connection from the second address of the mobile terminal to the other terminal via the security gateway.