Transition from IPv4 to IPv6 Based on Socket Applications

With the rapid development of Internet, IPv4 will transform into Ipv6 step by step. Some network applications on the basis of IPv4 need to be transformed so that they can be executed under the IPv6 environment. To solve the problem of such transition, the socket interface and realization of IPv4 and Ipv6 are analyzed firstly in this paper. Based on the analysis, a feasible method is presented to realize such transition. This method has been applied into the experiment of protocol-independent Web server and reached satisfying results.