Design And Implementation Of Automatic Registration Authentication System Based On IPv6 DNS

IPv6 is the most important protocol of the next generation network and has the vast application prospect. Comparing with IPv4, IPv6 has many new characteristic: large IP address space, plug and play and internal security architecture, etc. Plug and play function is very convenient to enable IPv6 network nodes to obtain IP addresses automatically without any manual help. When a node address varies, Users can keep connection with the network without any influence.However, the long length and dynamic change of IP addresses make it very complicated for network nodes to communicate each other by IP addresses, and it is almost impossible to install servers on these kinds of nodes. If we can give every node an authorized domain name, after the success of authenitication, the domain name of nodes and dynamic address will be mapped to DNS server, users can communicate with each other by their fixed domain names, enjoy rational resource and be easy to install servers on the nodes whose IP addresses change dynamically.This thesis presents a method to solve this problem that is to develop an automatic registration authentication system that support web mode. Install registration authentication server on a node and web server on other. Users can register by client or web. The server will send dymatic update message to DNS or access control message to NAS according to authentication. This thesis introduces the design and implementation of the automatic registration authentication system and explains the key techniques such as address checking, validity polling, and access control particularly. The functional test proves the feasibility of this proposal.