Method used to configure IPv6 over IPv4 manual tunnels on the USG2000 and USG5000 series

On the USG2000 and USG5000 series, configure the IPv6 over IPv4 manual tunnel as follows:

USG_A and USG_B are boundary devices on the IPv6 and IPv4 networks. The IPv4 address of interface GigabitEthernet 1/0/1 connecting USG_A to the IPv4 network is 1.1.1.1/24, and the IPv6 address of the interface connecting USG_A to the IPv6 network is 2011::1/64. The IPv4 address of interface GigabitEthernet 1/0/1 connecting USG_B to the IPv4 network is 1.1.1.2/24, and the IPv6 address of the interface connecting USG_B to the IPv6 network is 3011::1/64. An IPv6 over IPv4 manual tunnel is established between USG_A and USG_B.

1. Configure the tunnel encapsulation type, source address, destination address, and IPv6 address of the tunnel interface of USG_A.
system-view
[USG] sysname USG_A
[USG_A] ipv6
[USG_A] interface tunnel 1
[USG_A-Tunnel1] tunnel-protocol ipv6-ipv4
[USG_A-Tunnel1] ipv6 enable
[USG_A-Tunnel1] source 1.1.1.1
[USG_A-Tunnel1] destination 1.1.1.2
[USG_B-Tunnel1] ipv6 address 3001::1 64

2. Configure the route connecting USG_B to the IPv6 network.
[USG_A] ipv6 route-static 3011:: 64 tunnel 1

3. Configure the tunnel encapsulation type, source address, destination address, and IPv6 address of the tunnel interface of USG_B.
system-view
[USG] sysname USG_B
[USG_B] ipv6
[USG_B] interface tunnel 1
[USG_B-Tunnel1] tunnel-protocol ipv6-ipv4
[USG_B-Tunnel1] ipv6 enable
[USG_B-Tunnel1] source 1.1.1.2
[USG_B-Tunnel1] destination 1.1.1.1
[USG_B-Tunnel1] ipv6 address 3001::2 64

4. Configure the route connecting USG_A to the IPv6 network.
[USG_B] ipv6 route-static 2011:: 64 tunnel 1

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