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A VPN GATEWAY AND AN IPV6 NETWORK SYSTEM AND A SYSTEM FOR REALIZING MOBILE VPN IN HYBRID NETWORK AND THE METHOD
A VPN GATEWAY AND AN IPV6 NETWORK SYSTEM AND A SYSTEM FOR REALIZING MOBILE VPN IN HYBRID NETWORK AND THE METHOD
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机译:VPN网关和ipv6网络系统以及在混合网络中实现移动vpn的系统和方法
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摘要
A VPN gateway and a IPv6 network system and a system for realizing mobile VPN in hybrid network and the method, the present invention is used in the hybrid network including IPv4 network and IPv6 network, in which, a VPN gateway is set, the VPN gateway provides the inner interface of IPv6 address and the external interface of IPv4; and includes that: first, a tunnel is set up between the VPN gateway and the external network so as to transmit the packets interacted between the external network and IPv6 network inside the VPN, the dual end addresses of the tunnel are the IPv4 address of the external network and the IPv4 address of the external interface provided by VPN gateway; then, transmits the VPN packets which need to be transmitted by the said tunnel, so as to realize the VPN service. By realizing the present invention, during the evolvement from IPv4 network to IPv6, the mobile VPN service also can be realized by the hybrid network.
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