Method and apparatus for interworking authorization of dual stack operation

摘要

A method and apparatus for dynamic home address assignment by a home agent in multiple network interworking. The invention provides a method and apparatus send a key authorization request from a mobile station to a network device, the request indicating that the mobile station wishes to use a foreign agent care-of address to continue to receive data. The network device assigns a temporary address to the mobile station and creates a security policy database for the mobile station. The mobile station receives agent advertisements from foreign agents that may be able to provide service. The mobile station registers with a foreign agent. The network device then modifies the security policy database to reflect the information of the foreign agent. The Home Agent then assigns a home address to the mobile station and the network device updates the security policy database to include only the mobile device's home address as a selector.

主权项

1. A method comprising:
requesting for a mobile station dual stack operation using more than one internet protocol version for a home network; receiving authorization for dual stack operation from a home authorization entity using more than one internet protocol version; establishing a separate child security association (CHILD_SA) for each of the authorized internet protocol versions under the same internet key exchange security association (IKE_SA); establishing at least one secure tunnel for communication between the mobile station and the home network; and accessing simultaneously, by the mobile station, each of the authorized internet protocol versions using the at least one secure tunnel for communication.