| 摘要 |
A method, apparatus and system for Home Agent (HA) obtaining Mobile Node-Home Agent key (MN-HA key) in Proxy Mobile Internet Protocol (PMIP) is disclosed in the present invention. The method includes the following steps: an HA receives a Mobile Internet Protocol (MIP) Registration Request message (MIP-RRQ) from a Foreign Agent (FA); then, the HA sends a first access request message to an Authentication, Authorization and Accounting (AAA) server which the Mobile Station (MS) belongs to, wherein a carried user password in the first access request message is the HA-AAA key between the HA and the AAA server; thereafter, the HA receives a first access accept message carrying an MN-HA key returned from the AAA server, wherein the first access accept message is returned in response to the AAA server successfully authenticating the HA-AAA key carried in the first access request message using a locally-configured HA-AAA key; and finally the HA obtains the MN-HA key within the first access accept message. Thereby the present invention lays the foundation for successfully establishing MIP sessions. |
