Building Traversing NAT IPv6 Tunnel Gateway System Relies on Netfilter/Iptable Framework

摘要

The transition from IPv4 to IPv6 is doomed to be a long process. The network Address translation (NAT) technology is used very popularly in IPv4 network to make up the shortage of network address. It is a desiderated problem to make the users behind NAT gateway to access to IPv6 networks. By studying the transition technology from IPv4 to IPv6 and introducing NAT technology in IPv6, a scenario is put forward through 6to4 tunnel. The scenario is implemented and the gateway system's performance is analyzed.