METHOD AND DEVICE FOR ADDRESS TRANSLATION

摘要

The invention relates to a communication method to be implemented by an address translation device (8) connected to an IPv6-based operator network (6) and an IPv4-based public network (10). The contextual information of the address translation device contains an identifier of the terminal. In response to the receipt of the incoming IPv4 packet, contextual information associated with said terminal is searched on the basis of a tunnel parameter associated with the incoming IPv4 packet. If no contextual information associated with the terminal has been found, a query message is sent to a management device (7), and a response message containing an identifier of the terminal is received. Then, said contextual information database (21) is updated on the basis of the response message.