such as exhausting of address space and exploding of routing table. Whats more
IPv6 adds new features to IP
security
host mobility and multimedia becoming organic parts of it. The design of IPv6 facilitates the packet processing and has good extension. But the first problem we will face is the transformation from IPv4 to IPv6. Now almost every network and device supports IPv4
so it is not practical to finish the transformation in a short time. IPv6 has to resolve the problems left by IPv4 architecture. This paper researches and analyses the strategy of transformation from IPv4 to IPv6. And it discusses the advantage and disadvantage of the strategy from the point of the operator. Whats more
the issues about evolution of routers are addressed.