Research On Mobile Subnet Nodes V4/v6through Technology Based On PMIPv6

PMIPv6protocol is a mobile management protocol based on IPv6network used by3GPP. Compared with the mobile IPv6(MIPv6) protocol, PMIPv6protocol can provide good support of terminal mobility, without the need of modifying the stack of mobile equipment. At the same time, as the mobile network application scene is more and more familiar to people, all kinds of mobile network schemes under PMIPv6protocol also become one of the hot topics, and has formed some drafts in IETF. The ordinary mobile subnet scheme (C-NEMO) is a mobile network scheme based on PMIPv6, but it only provides IPv6services.This paper relies on the national technology support project, according to the C-NEMO research of deficiencies in the IPv4services provision, the function of each entity in C-NEMO is extended, and it draws in the mobile terminal authentication function. Thus, a complete mobile terminal v4/v6through technology scheme of making legal mobile terminal get IPv6and IPv4service in the IPv6access network environment of C-NEMO is given out.The paper reviews the present research situation of Internet mobility management protocol and IPv6accessing the IPv4Internet through technology at home and abroad, then, it briefly describe the working principle of lightweight double stack of DS-Lite technology and the C-NEMO basic protocol, and mix them together, then it proposes a new scheme of mobile node in C-NEMO v4/v6network through technology. By analyzing the scheme and comparing the main function of different entities in C-NEMO, the scheme expands the function of each entity and designs the signaling flow and packet routing process of mobile network nodes. As a result, it realizes the expectation of providing all kinds of IPv4service for mobile subnet nodes without any impact in the performance of original C-NEMO handover delay. In addition, in order to join the security mechanism in the C-NEMO scheme, meeting the demands of only legitimate identity users can access the sources and services of the Internet, the scheme of system implements the radius terminal identity authentication function by making the design、 developing the software entities function、configuring and installing the software to realize the expansion of functions in the respective entities. First of all, the scheme extends the function of the mobile router (MR) and local mobile anchor (LMA), by designing、developing、configuring and installing the software of customer premises equipment (CPE) function and address family conversion router equipment (AFTR) function in DS-Lite technology to realize a kind of C-NEMO sub net plan with the integration of the DS-Lite technology, so that the mobile terminal can access the IPv4service and have the DS-Lite technology advantage at the same time. Secondly, the design of radius client authentication function in the terminal access monitoring software and identity authentication software developed on MR realize the identity authentication function of mobile terminal. In the end, this paper proposes a complete system scheme. Finally, this article in accordance with the design requirements of function modules and the design of software structure, achieves the function design of the software and network nodes for v4/v6application testing of the mobile subnet nodes v4/v6through technology scheme in the2.6.35.6Linux kernel platform.