Proxy mobile IP communications network

摘要

A method and apparatus for use in a Proxy Mobile IP communications network. An anchor point function serves at least one mobile host. The anchor point function generates an IP address for use by the mobile host, the address being generated using cryptographic materials owned by the anchor point function. The anchor point function can then perform signaling on behalf of the mobile host, using the IP address generated for the mobile host and at least part of the cryptographic materials used to generate the IP address.