Abstract
IPv6 is to solve the problem of IPv4 address exhaustion, with the development of the Internet of things, big data and cloud storage and other technologies, these technologies are gradually applied in recent years, the continuous development of new technologies application show that the IPv6 address structure design ideas have some fatal defects. This paper proposed a route to upgrade the original IPv4 by studying on the structure of IPv6 “spliced address”, and point out the defects in the design of IPv6 interface ID and the potential problems such as security holes.