Configuration Example - 3Com S7906E Configuration Manual

If the addresses of the tunnel interfaces at the two ends of a tunnel are not in the same network
segment, a forwarding route through the tunnel to the peer must be configured so that the
encapsulated packet can be forwarded normally. You need to configure a static or dynamic route at
both ends of the tunnel. For the detailed configuration, refer to Static Routing Configuration or other
routing protocol configuration in the IP Routing Volume.
Two or more tunnel interfaces using the same encapsulation protocol must have different source
and destination addresses.
If you specify a source interface instead of a source address for the tunnel, the source address of
the tunnel is the primary IP address of the source interface.
When you configure dynamic routing at each tunnel end, you need to enable the dynamic routing
protocol on the tunnel interface. For related configurations, refer to related contents in the IP
Routing Volume.

Configuration Example

Network requirements
The two subnets Group 1 and Group 2 in the private network running IPv4 are interconnected over the
IPv6 network by using an IPv4 over IPv6 tunnel between Switch A and Switch B.
Figure 1-12 Network diagram for an IPv4 over IPv6 tunnel
Configuration procedure
Make sure that Switch A and Switch B have the corresponding VLAN interfaces created and are
reachable to each other.
Configuration on Switch A
# Enable IPv6.
<SwitchA> system-view
[SwitchA] ipv6
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