Research And Implementation, Of The Level Of Integration Of Aaa Mobile Ipv6 Protocol

With the rapid development of wireless communication technology, laptop, mobile phone and other kinds of intelligent terminal devices become more and more popular, and Internet expects new demand on mobile technology support. With Mobile IPv6 (MIPv6) protocol, a mobile node can move from one link to other link without changing its IP address. A mobile node has a special address, say home address. A mobile node can always communicate with other nodes via its home address whether it is on its home link or foreign link, and the connections of transport layer and higher layer will not be broken.The Hierarchical Mobile IPv6 (HMIPv6) protocol introduces Mobility Anchor Point (MAP) to MIPv6 protocol, and when mobile nodes moves in the MAP domain, it only needs to register with MAP rather than with Home Agent, which greatly reduces the handoff time. The experiment results show that the Duplicate Address Detection (DAD) operation for the On-link Care-of Address (LCoA) and Regional Care-of Address (RCoA) greatly impairs the Mobile Node's inner-MAP and inter-MAP handover performance. The author proposes a Care-of Address Pool Based HMIPv6 (CoAP-HMIPv6) protocol which introduces LCoA pool and RCoA pool into HMIPv6, then avoids the DAD operation for the LCoA and RCoA. The experiment results show that the proposed protocol greatly reduces the handover latency.However, the MIPv6 and HMIPv6 systems cannot be put to commercial use unless the Authentication, Authorization and Accounting (AAA) protocols are introduced. AAA protocols provide authentication, authorization and accounting services to the mobile nodes which want to use MIPv6 services. Diameter protocol is the newest generation of AAA protocol. This paper describes the protocol model, message format and protocol operations of Diameter Hierarchical Mobile IPv6 Application and the implementation of Diameter Hierarchical Mobile IPv6 System.