Example for Configuring a Manual IPv6 over IPv4 Tunnel

Networking Requirements

As shown in Figure 1, two IPv6 networks are connected to Device B on the IPv4 backbone network through Device A and Device C. To interconnect the two IPv6 networks, configure a manual IPv6 over IPv4 tunnel between Device A and Device C.


Figure 1 Configuring a manual IPv6 over IPv4 tunnel
 


Precautions

When configuring a manual IPv6 over IPv4 tunnel, note the following points:
  • Create a tunnel interface and set parameters for the tunnel interface.
  • Perform the following configuration on both Device A and Device C. The source address of the local end is the destination address of the remote end of the tunnel. Similarly, the destination address of the local end is the source address of the remote end.
  • Configure IP addresses for the tunnel interface to support routing protocols.

Configuration Roadmap

The configuration roadmap is as follows:
  1. Assign an IP address to each physical interface.
  2. Configure the IPv6 address, source interface number, and destination address for the tunnel interface.
  3. Set the protocol type is IPv6-IPv4.

Data Preparation

To complete the configuration, you need the following data:
  • IP addresses of interfaces
  • IPv6 address, source interface number, and destination address of the tunnel

Procedure

  1. Configure Device A.
    # Configure an IP address for Device A's interface that connects to Device C.
    <HUAWEI> system-view
    [~HUAWEI] sysname DeviceA
    [*HUAWEI] commit
    [~DeviceA] interface gigabitethernet 0/1/0
    [~DeviceA-GigabitEthernet0/1/0] ip address 192.168.50.2 255.255.255.0
    [*DeviceA-GigabitEthernet0/1/0] undo shutdown
    [*DeviceA-GigabitEthernet0/1/0] quit
    # Set the protocol type to IPv6-IPv4.
    [*DeviceA] interface tunnel 1
    [*DeviceA-Tunnel1] tunnel-protocol ipv6-ipv4
    # Configure the IPv6 address, source interface number, and destination address for the tunnel interface.
    [*DeviceA-Tunnel1] ipv6 enable
    [*DeviceA-Tunnel1] ipv6 address 2001:db8::1 64
    [*DeviceA-Tunnel1] source 192.168.50.2
    [*DeviceA-Tunnel1] destination 192.168.51.2
    [*DeviceA-Tunnel1] quit
    # Configure a static route.
    [*DeviceA] ip route-static 192.168.51.2 255.255.255.0 192.168.50.1
    [*DeviceA] commit
  2. Configure Device B.
    # Configure IP addresses for Device B's interfaces that connect to Device A and Device C.
    <HUAWEI> system-view
    [~HUAWEI] sysname DeviceB
    [*HUAWEI] commit
    [~DeviceB] interface gigabitethernet 0/1/0
    [~DeviceB-GigabitEthernet0/1/0] ip address 192.168.50.1 255.255.255.0
    [*DeviceB-GigabitEthernet0/1/0] undo shutdown
    [*DeviceB-GigabitEthernet0/1/0] quit
    [*DeviceB] interface gigabitethernet 0/2/0
    [*DeviceB-GigabitEthernet0/2/0] ip address 192.168.51.1 255.255.255.0
    [*DeviceB-GigabitEthernet0/2/0] undo shutdown
    [*DeviceB-GigabitEthernet0/2/0] commit
    [~DeviceB-GigabitEthernet0/2/0] quit
  3. # Configure Device C.
    # Configure an IP address for Device C's interface that connects to Device A.
    <HUAWEI> system-view
    [~HUAWEI] sysname DeviceC
    [*HUAWEI] commit
    [~DeviceC] interface gigabitethernet 0/1/0
    [~DeviceC-GigabitEthernet0/1/0] ip address 192.168.51.2 255.255.255.0
    [*DeviceC-GigabitEthernet0/1/0] undo shutdown
    [*DeviceC-GigabitEthernet0/1/0] quit
    # Set the protocol type to IPv6-IPv4.
    [*DeviceC] interface tunnel 1
    [*DeviceC-Tunnel1] tunnel-protocol ipv6-ipv4
    # Configure the IPv6 address, source interface number, and destination address for the tunnel interface.
    [*DeviceC-Tunnel1] ipv6 enable
    [*DeviceC-Tunnel1] ipv6 address 2001:db8::2 64
    [*DeviceC-Tunnel1] source 192.168.51.2
    [*DeviceC-Tunnel1] destination 192.168.50.2
    [*DeviceC-Tunnel1] quit
    # Configure a static route.
    [*DeviceC] ip route-static 192.168.50.2 255.255.255.0 192.168.51.1
    [*DeviceC] commit
  4. Verify the configuration.
    # Ping the IPv4 address of GE 0/1/0 on Device A from Device C, and the ping operation is successful.
    [~DeviceC] ping 192.168.50.2
      PING 192.168.50.2: 56  data bytes, press CTRL_C to break
        Reply from 192.168.50.2: bytes=56 Sequence=1 ttl=254 time=84 ms
        Reply from 192.168.50.2: bytes=56 Sequence=2 ttl=254 time=27 ms
        Reply from 192.168.50.2: bytes=56 Sequence=3 ttl=254 time=25 ms
        Reply from 192.168.50.2: bytes=56 Sequence=4 ttl=254 time=3 ms
        Reply from 192.168.50.2: bytes=56 Sequence=5 ttl=254 time=24 ms
    
    
      --- 192.168.50.2 ping statistics ---
        5 packet(s) transmitted
        5 packet(s) received
        0.00% packet loss
        round-trip min/avg/max = 3/32/84 ms
    # Ping the IPv6 address of Tunnel 1 on Device A from Device C, and the ping operation is successful.
    [~DeviceC] ping ipv6 2001:db8::1
      PING 2001:db8::1 : 56  data bytes, press CTRL_C to break
        Reply from 2001:db8::1
        bytes=56 Sequence=1 hop limit=64  time = 28 ms
        Reply from 2001:db8::1
        bytes=56 Sequence=2 hop limit=64  time = 27 ms
        Reply from 2001:db8::1
        bytes=56 Sequence=3 hop limit=64  time = 26 ms
        Reply from 2001:db8::1
        bytes=56 Sequence=4 hop limit=64  time = 27 ms
        Reply from 2001:db8::1
        bytes=56 Sequence=5 hop limit=64  time = 26 ms
        5 packet(s) transmitted
        5 packet(s) received
        0.00% packet loss
    round-trip min/avg/max = 26/26/28 ms

Configuration Files

  • Device A configuration file
    #
     sysname DeviceA
    #
    admin
    interface GigabitEthernet0/1/0
     undo shutdown
     ip address 192.168.50.2 255.255.255.0
    #
    interface Tunnel 1
     ipv6 enable
     ipv6 address 2001:db8::1/64
     tunnel-protocol ipv6-ipv4
     source 192.168.50.2
     destination 192.168.51.2
    #
    ip route-static 192.168.51.0 255.255.255.0 192.168.50.1
    #
    return
  • Device B configuration file
    #
     sysname DeviceB
    #
    admin
    interface GigabitEthernet0/1/0
     undo shutdown
     ip address 192.168.50.1 255.255.255.0
    #
    interface GigabitEthernet0/2/0
     undo shutdown
     ip address 192.168.51.1 255.255.255.0
    #
    return
  • Device C configuration file
    #
     sysname DeviceC
    #
    admin
    interface GigabitEthernet0/1/0
     undo shutdown
     ip address 192.168.51.2 255.255.255.0
    #
    interface Tunnel 1
     ipv6 enable
     ipv6 address 2001:db8::2/64
     tunnel-protocol ipv6-ipv4
     source 192.168.51.2
     destination 192.168.50.2
    #
    ip route-static 192.168.50.0 255.255.255.0 192.168.51.1
    #
    return

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