H3C Technologies H3C S10500 Series Switches - Manual (Page 183)

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• 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.
Configuration procedure
Follow these steps to configure an IPv4 over IPv6 manual tunnel:
To do… Use the command… Remarks
Enter system view system-view —
Enable IPv6 ipv6
Required
By default, the IPv6 packet forwarding
function is disabled.
Enter tunnel interface view interface tunnel number —
Configure an IPv4 address for
the tunnel interface ip address ip-address { mask |
mask-length } [ sub ]
Required
By default, no IPv4 address is configured
for the tunnel interface.
Specify the IPv4 over IPv6
manual tunnel mode
tunnel-protocol ipv4-ipv6
Optional
GRE over IPv4 tunnel by default.
The same tunnel mode should be
configured at both ends of the tunnel.
Otherwise, packet delivery will fail.
Configure the source address
or interface for the tunnel
interface
source { ipv6-address |
interface-type interface-number }
Required
By default, no source address or interface
is configured for the tunnel.
Configure the destination
address for the tunnel
interface
destination ipv6-address
Required
By default, no destination address is
configured for the tunnel.
Configuration example
Network requirements
As shown in Figure 74 , the two subnets Group 1 and Group 2 are connected over an IPv6 network.
Configure an IPv4 over IPv6 manual tunnel between Switch A and Switch B to make the two subnets
reachable to each other.
Figure 74 Network diagram for an IPv4 over IPv6 manual tunnel