Configuration example

As shown in Figure 131, to enable hosts in the private IPv4 network to access the public IPv4 network over the IPv6 network, perform the following tasks:

• Configure a DS-Lite tunnel between Router A and Router B.

• Configure NAT on GigabitEthernet 1/0/1 on the AFTR.

Make sure Router A and Router B can reach each other through IPv6.

• Configure Router A:

  # Specify an IPv4 address for GigabitEthernet 1/0/1.

  <RouterA> system-view
  [RouterA] interface gigabitethernet 1/0/1
  [RouterA-GigabitEthernet1/0/1] ip address 10.0.0.2 255.255.255.0
  [RouterA-GigabitEthernet1/0/1] quit
  

  # Specify an IPv6 address for GigabitEthernet 1/0/2, which is the physical interface of the tunnel.

  [RouterA] interface gigabitethernet 1/0/2
  [RouterA-GigabitEthernet1/0/2] ipv6 address 1::1 64
  [RouterA-GigabitEthernet1/0/2] quit
  

  # Create the IPv6 tunnel interface Tunnel 1.

  [RouterA] interface tunnel 1 mode ipv6
  

  # Specify an IPv4 address for the tunnel interface.

  [RouterA-Tunnel1] ip address 30.1.2.1 255.255.255.0
  

  # Specify the IP address of GigabitEthernet 1/0/2 as the source address for the tunnel interface.

  [RouterA-Tunnel1] source 1::1
  

  # Specify IP address of GigabitEthernet 1/0/2 on Router B as the destination address for the tunnel interface.

  [RouterA-Tunnel1] destination 2::2
  [RouterA-Tunnel1] quit
  

  # Configure a static route to the public IPv4 network through the tunnel interface.

  [RouterA] ip route-static 20.1.1.0 255.255.255.0 tunnel 1
  

• Configure Router B:

  # Specify an IPv4 address for GigabitEthernet 1/0/1.

  <RouterB> system-view
  [RouterB] interface gigabitethernet 1/0/1
  [RouterB-GigabitEthernet1/0/1] ip address 20.1.1.1 24
  [RouterB-GigabitEthernet1/0/1] quit
  

  # Specify an IPv6 address for GigabitEthernet 1/0/2, which is the physical interface of the tunnel.

  [RouterB] interface gigabitethernet 1/0/2
  [RouterB-GigabitEthernet1/0/2] ipv6 address 2::2 64
  [RouterB-GigabitEthernet1/0/2] quit
  

  # Create the DS-Lite tunnel interface Tunnel 2.

  [RouterB] interface tunnel 2 mode ds-lite-aftr
  

  # Configure an IPv4 address for the tunnel interface.

  [RouterB-Tunnel2] ip address 30.1.2.2 255.255.255.0
  

  # Specify GigabitEthernet 1/0/2 as the source interface of the tunnel interface.

  [RouterB-Tunnel2] source gigabitethernet 1/0/2
  [RouterB-Tunnel2] quit
  

  # Enable DS-Lite tunneling on GigabitEthernet 1/0/1.

  [RouterB] interface gigabitethernet 1/0/1
  [RouterB-GigabitEthernet1/0/1] ds-lite enable
  

  # Enable NAT on GigabitEthernet 1/0/1 and use the IP address of GigabitEthernet 1/0/1 as the translated address.

  [RouterB-GigabitEthernet1/0/1] nat outbound
  [RouterB-GigabitEthernet1/0/1] quit
  

• On host A, specify the IP address for the host as 10.0.0.1 and configure a static route to 20.1.1.0/24 with next hop 10.0.0.2. (Details not shown.)

• On host B, specify the IP address for the host as 20.1.1.2. (Details not shown.)

# Use the display interface tunnel command to display the status of the tunnel interfaces on Router A and Router B. Verify that the tunnel interfaces are up. (Details not shown.)

# Verify that host A can ping host B.

C:\> ping 20.1.1.2
Pinging 20.1.1.2 with 32 bytes of data:
Reply from 20.1.1.2: bytes=32 time=51ms TTL=255
Reply from 20.1.1.2: bytes=32 time=44ms TTL=255
Reply from 20.1.1.2: bytes=32 time=1ms TTL=255
Reply from 20.1.1.2: bytes=32 time=1ms TTL=255
Ping statistics for 20.1.1.2:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 1ms, Maximum = 51ms, Average = 24ms