Abstract :
With the rapid development of Internet, IPv4 protocol can no longer meet the needs of users. This is mainly due to the limitations of IPv4 in terms of addresses, routing and security. Correspondingly, IPv6 has the advantage of large address space, security, mobility, quality of service and so on. So IPv6 protocol has become the inevitable trend of network development. However IPv4 and IPv6 are incompatible protocols, so a solution to transition is required. In order to achieve smooth and stepwise transition, IETF recommends three kinds of transition mechanisms: dual stack, tunneling and translation technology. This paper introduces the principle of these transition mechanisms, emphatically proposes a solution to smooth IPv6 transition based on tunneling and translation technology. Finally, we implement two kinds of tunnel and deploy a IVI transition system[1]. The experiment results show that the proposed solution is feasible.
