Mobile Ipv6 Binding Update Registration Study

Mobile IPv6 technique comes into being for the demand which is a new type of Internet technique can support to connect mobile user and Internet.This new IP protocol comes into being in order to support signal communication of mobile users and mobile host,to mobile users in the mobile own position meanwhile without interrupting ongoing network communications. Mobile IPv6 protocol use Route Optimization causes the Mobile node communicate to the end node not through its hometown agent, but the direct communication, It reduced the grouping delay as well as the hometown agent's burden. Communications with route optimization makes mobile IPv6 protocol vulnerable to problems with simultaneous mobility. At present this problem is not obvious,but with more and more equipments may be mobile equipments,the both sides nodes of future communication are very likely to be mobile nods, they are likely to move in the communication process, so this problem will be more and more serious and needs to be dealed with. More and more researchers and experts start to pay attention to this problem,and how to solve it is becoming a new hot research study pot.This paper analyzed the RFC documents related to mobile IPv6 technique, then introduced Mobile IPv6 protocol and binding updating technique. Simultaneous mobility is the case when both hosts are mobile nodes and they move at about the same time. The simultaneous mobility problem is that messages, especially protocol messages, are lost during simultaneous mobility, which leads to the interruption of communication, and handoff delay; we proposed a binding updating registration mechanism based on early registration. It add an forecast care-of-address before binding update information in standard home address.This mechanism solution simultaneously mobility question well, it is small to the standard revision, so it has the big practicability.In this thesis, some technologies about mobile IPv6 and route optimization are introduced first. Then a binding updating registration mechanism based on early registration for mobile IPv6 is proposed. By installing and modifying a NS2 attachment packet, mobiwan2, Return Routability Procedure. Finally,we do Experiments in the NS2 environment, by analyzing the simulation result and experiment data, the feasibility of the proposed mechanism is validated.