A New Method For Multi-Interface Address Selecting Based On Mobile IPv6

With the development of Internet, especially the emergence of new kinds of networks, the requirement of mobility is increasing. Mobile IP makes a mobile node with simple interface can access the Internet at anytime and anywhere.Nowadays, heterogeneous wireless networks are used world widely. However, no network interface itself can keep communication connectivity and efficient anywhere. Therefore, mobile node may use various types of network interfaces to obtain durable and wide area network connectivity, and also better services.Currently, specifications of Mobile IPv6 lack the support of mobile nodes with multiple addresses used simultaneously. Accordingly, a mechanism would then be needed for the MN to select which address should be used when a new communication flow is initiated. In this paper, we define a multi-homing address system and then proposed an address selecting scheme which concerns user preferences, type of interface, link characteristics, and some flow attributes. We also detail the basic explanation under each type of scenario and analyze the address selection method.To analyze the performance of address selecting schema, we develop a module supported this proposal based on NS-2 and then do the simulation. Comparing the throughput between basic load assignment mode (that is, using every interface in turn) and address selection mode, we get the conclusion that the schema proposed in this paper makes the load allocation more reasonable and efficient.