R0106-HP MSR Router Series Layer 3 - IP Services Configuration Guide(V7)

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Configuring an IPv4 over IPv6 manual tunnel
Follow these guidelines when you configure an IPv4 over IPv6 manual tunnel:
• The destination address specified for the local tunnel interface must be the source address specified
for the peer tunnel interface, and vice versa.
• The source/destination addresses of local tunnels of the same tunnel mode cannot be the same.
• To ensure correct packet forwarding, identify whether the destination IPv4 network and the IPv4
address of the local tunnel interface are on the same subnet. If not, configure a route reaching the
destination IPv4 network through the tunnel interface. You can configure the route by using one of
the following methods:
{ Configure a static route, and specify the local tunnel interface as the egress interface or specify
the IPv6 address of the peer tunnel interface as the next hop.
{ Enable a dynamic routing protocol on both tunnel interfaces to achieve the same purpose.
For more information about route configuration, see Layer 3—IP Routing Configuration Guide.
To configure an IPv4 over IPv6 manual tunnel:
Step Command Remarks
1. Enter system view.
system-view N/A
2. Enter tunnel interface
view.
interface tunnel number [ mode
ipv6 ]
N/A
3. Configure an IPv4
address for the tunnel
interface.
ip address ip-address { mask |
mask-length } [ sub ]
By default, no IPv4 address is configured
for the tunnel interface.
4. Configure the source
address or interface for
the tunnel interface.
source { ipv6-address |
interface-type interface-number }
By default, no source address or interface
is configured for the tunnel.
The specified source address or the
primary IPv6 address of the specified
source interface is used as the source IPv6
address of tunneled packets.
5. Configure the destination
address for the tunnel
interface.
destination ipv6-address
By default, no destination address is
configured for the tunnel.
The tunnel destination address must be
the IPv6 address of the receiving interface
on the tunnel peer. It is used as the
destination IPv6 address of tunneled
packets.
Configuration example
Network requirements
As shown in Figure 117, configure an IPv4 over IPv6 manual tunnel between Router A and Router B so the
two IPv4 networks can reach each other over the IPv6 network.