A DEVICE AND METHOD FOR CARRYING OUT THE NODE ROAMING IN INTERNET PROTOCOL VERSION 6 NETWORK

摘要

A device and method for carrying out the node roaming in internet protocol version 6 network are provided, the device mainly comprises: FHA (foreign home agent). The method mainly comprises: after the MN (mobile node) moving from IPv4 (internet protocol version 4) network to IPv6 (internet protocol version 6) network, FHA registers the tunnels in network interfaces of IPv6 network and IPv4 network by intercommunicating information with MN, HAv4 (the home agent of MN in IPv4 network ). The method mainly comprises: the said MN transmits binding update message after MN moving from IPv4 network to IPv6 network, the IPv4 registration option of the said MN is carried in the said binding update message. The route plan that the dual stack mobile node roams from IPv6 network to IPv4 network is carried out by using the present invention.