Method used to configure ISATAP tunnels on the USG2000 and USG5000 series

On the USG2000 and USG5000 series, configure the ISATAP tunnel as follows:

USG_A is a boundary device on the IPv6 and IPv4 networks. The IPv4 address of interface GigabitEthernet 1/0/1 connecting USG_A to the IPv4 network is The IPv4 address of the host PC is An ISATAP tunnel is established between USG_A and the PC.

1. Configure the tunnel encapsulation type, source address, and ISATAP address prefix of the tunnel interface of USG_A.
[USG] sysname USG_A
[USG_A] ipv6
[USG_A] interface tunnel 1
[USG_A-Tunnel1] tunnel-protocol ipv6-ipv4 isatap
[USG_A-Tunnel1] ipv6 enable
[USG_A-Tunnel1] source
[USG_A-Tunnel1] ipv6 address 3001:: 64 eui-64
[USG_A-Tunnel1] undo ipv6 nd ra halt

2. Assume that the host PC adopts the Microsoft Windows XP Professional system. The IPv4 address configured for the host is Install the IPv6 protocol on the PC, so that the PC can obtain ISATAP address prefix 3001::/64 from USG_A.

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