A Novel IPv4/IPv6 Translation Mechanism Based on NAT-PT

The deficiency of current IPv4-based Internet is getting more and more apparent in practical applications and it is inevitable that as the next version of Internet protocol goes, IPv6 will substitute IPv4. It is very important to research on compatible problems during the transition period from IPv4 to IPv6. Based-on research and analysis on one kind of direct translation technology-Network Address Translation/Protocol Translation, taking NAT-PT proposed by RETF as the foundation of network layer translation, this paper optimizes and extends NAT-PT, meanwhile gives out the specific implementation, designs the entire architecture of translation mechanism based on NAT-PT, proposes the translation methods of transmission layer and application layer. At last, by simulation approach, it carries on qualitative and quantitative analysis on the translation mechanism.