The IPv6 VPN scenario under the mobile network environment

In order to communicate with IPv4 node, the IPv6 development will use various NGtrans mechanisms according to network situation. Therefore, mobile network also should be able to compose secure connectivity with its own home network. The correlation between transition mechanism - used in the existing network - and Transition mechanism supporting mobile network is a factor composing VPN in composing secure connectivity with its own home network. The paper has analyzes VPN scenario applicable to mobile network during the development of IPv6.