Abstract: With the continuous development and construction of IPv6 network, the application system migrating from IPv4 to IPv6 under the existing mainstream framework (B/S) faces the transformation and deployment issues. This paper proposes a set of scientific migration sehedules from the perspective of the application layer starting. First of all, when migrating in the process of IPv4 to IPv6, the two cores, the runtime environment to build and the Socket programming transformation, are put forward, and the key transformation technologies of the application system under B/S structure are discussed based on them. Then, according to the network characteristics of the application, the application migration process is designed. Finally, the proposal is to be proved feasible by testing the transformation program.
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Key words: B/S structure, application system, IPv6, migrating, runtime environment, Socket programming