3Com MSR 50 Series Configuration Manual page 729

# Configure the tunnel encapsulation mode.
[RouterB-Tunnel2] tunnel-protocol ipv6-ipv6
# Configure a source address for the interface tunnel 2 (IP address of Serial 2/1).
[RouterB-Tunnel2] source 2002::22:1
# Configure a destination address for the interface tunnel 2 (IP address of Serial2/0
of Router A).
[RouterB-Tunnel2] destination 2002::11:1
[RouterB-Tunnel2] quit
# Configure a static route from Router B through the interface tunnel 2 to Group
1.
[RouterB] ipv6 route-static 2002:1:: 64 tunnel 2
Configuration verification
After the above configuration, display the status of the tunnel interfaces on Router
A and Router B, respectively.
[RouterA] display ipv6 interface Tunnel1
Tunnel1 current state :UP
Line protocol current state :UP
IPv6 is enabled, link-local address is FE80::100:1320
Global unicast address(es):
2002:2::1, subnet is 2002:2::/64
Joined group address(es):
FF02::1:FF00:1320
FF02::1:FF00:1
FF02::2
FF02::1
MTU is 1500 bytes
ND reachable time is 30000 milliseconds
ND retransmit interval is 1000 milliseconds
Hosts use stateless autoconfig for addresses
[RouterB] display ipv6 interface Tunnel2
Tunnel2 current state :UP
Line protocol current state :UP
IPv6 is enabled, link-local address is FE80::100:2420
Global unicast address(es):
2002:2::2, subnet is 2002:2::/64
Joined group address(es):
FF02::1:FF00:2420
FF02::1:FF00:2
FF02::2
FF02::1
MTU is 1500 bytes
ND reachable time is 30000 milliseconds
ND retransmit interval is 1000 milliseconds
Hosts use stateless autoconfig for addresses
# Ping the IPv6 address of the peer interface Ethernet1/0 from Router A.
Configuring IPv6 over IPv6 Tunnel 729