Security Policy Research Of Mobile IPv6 Bashed On NS-2

IPv4 has been regarded as the standard protocol in recent Internet technology.However,with the repaid development and the increasingly expanded network,several problems come up to the surface,such as severely lack of IP addresses,insufficient support to mobility,quality of service and security,etc.As a result,the Internet Engineering Task Force(IETF)proposed a new generation internet protocol—IPv6.The new internet protocol solved these problems especially in the aspect in mobility support,because the support to mobility has been a compulsive part but not an optional part in IPv4. This paper is focus on the discussion of the security of the mobile IPv6.The first part of this paper showed the research achievement in the field of mobile IPv6 aboard and domestic respectively,and then explained some terms and substances used in mobile IPv6 network.Security threat for the MIPv6 was analyzed in the following part,we simulate several kinds of usual attacks in the MIPv6 networks and pointed out the harms to the user.In order to solve the problems addressed above,several security systems were introduced including:IPsec which mainly protect the binding update procedure between MN and HA,as well as RRP which hold the responsibility to protect the communication between MN and CN.In addition,we analyzed the asset and defect of each system respectively.In the final part,we introduced an open-source simulation software NS-2, and a new component called Mobiwan which is for the Mipv6 simulation.We extended the Mobiwan in the purpose of doing the simulation of Mipv6 according to RFC3775.The simulation result showed that our extension is a successful one and made a lot of sense for the Mipv6 simulating.