Intra-domain mapping updating authenticating method in identity and position separation network

The invention discloses an intra-domain mapping updating authenticating method in an identity and position separation network, and relates to the technical field of communication route or path selection. The method comprises the following steps: (1) constructing an intra-domain mapping updating authenticating model in the identity and position separation network; (2) performing registering; (3) carrying out an intra-domain mapping updating authenticating process in the identity and position separation network. According to the method, replay attack, man-in-the-middle attack, impersonation attack and the like can be effectively resisted, and the confidentiality of a mapping updating message is effectively guaranteed.