Ipv6 Core Technology And Security

With the deepening development of the Internet, the existing network infrastructure and services have been difficult to satisfy and support large-scale network applications. At present, Internet Protocol for the IPv4, its address is 32-bit code, and provide the IP address for more than 40 of about 100 million, but the United States have absolute control.IPv4 has allocated 70 per cent,the world will face severe depletion of the IP address Crisis. IPv6 technology is the core of the next generation Internet, will soon replace the existing Internet Protocol fourth IPv4, IPv6 to IPv4 solve the many problems, such as address shortages, service quality assurance. At the same time, IPv6 to IPv4 also made a lot of improvements, including routing and network auto-configuration, and so on. The international community are closely watching the results of research on IPv6 in the hope of an early realization of transformation, the benefit of mankind.This paper introduced IPv6 the background and basic principles for domestic and foreign research results and the status quo, determine the direction of the research papers for IPv6 core technology and security studies.First, the article discusses the basic concepts related to the IPv6,and then expounded on the technical merits of IPv6, in view of these characteristics, the following were reported from the first structure, address the problem, address auto-configuration technology, analytical technology domain, neighbors found that super-long data transmission problems, Routing technology, and multicast technology, eight of IPv6 in the core technology was discussed. Then made from IPv4 to IPv6 specific transition program to address the IPv6 "island" between the way the exchange and IPv6 "island "IPv4" Ocean "interoperability between the way.Second,IPv6 address the security issues, the paper elaborated on IPv6's security strategy, put forward IPv6 security policy system. This is a multi-level and multi-domain distributed system security strategy, to build an IPv6-based security needs of policy-driven network security system to ensure that the policy-driven network of real security.Finally, the IPv6 on the prospect for future applications. IPv6 will bring us the all-round, high-quality applications and services of the future is wonderful and broad.