Example for Configuring an ISATAP Tunnel

Procedure

1. Configure the ISATAP router.

   # Enable the IPv4/IPv6 dual stack and configure an IP address for each interface.

   <Huawei> system-view

   [Huawei] sysname Router

   [Router] ipv6

   [Router] interface gigabitethernet 1/0/0

   [Router-GigabitEthernet1/0/0] ipv6 enable

   [Router-GigabitEthernet1/0/0] ipv6 address fc01::1/64

   [Router-GigabitEthernet1/0/0] quit

   [Router] interface gigabitethernet 2/0/0

   [Router-GigabitEthernet2/0/0] ip address 2.1.1.1 255.0.0.0

   [Router-GigabitEthernet2/0/0] quit

   # Configure an ISATAP tunnel.

   [Router] interface tunnel 0/0/2

   [Router-Tunnel0/0/2] tunnel-protocol ipv6-ipv4 isatap

   [Router-Tunnel0/0/2] ipv6 enable

   [Router-Tunnel0/0/2] ipv6 address 2001::/64 eui-64

   [Router-Tunnel0/0/2] source gigabitethernet 2/0/0

   [Router-Tunnel0/0/2] undo ipv6 nd ra halt

   [Router-Tunnel0/0/2] quit

2. Configure the ISATAP host.

   The ISATAP host is relevant to the operating system. The host running Windows 7 is used as an example.

   # Run the following command to add a static route to the border router. IPv6 has been installed by default in Windows 7 operating system.

   C:\> netsh interface ipv6 isatap set router 2.1.1.1
   C:\> netsh interface ipv6 isatap set router 2.1.1.1 enabled

   # Check ISATAP interface information on the host.

   C:\>ipconfig/all
   Tunnel adapter Automatic Tunneling Pseudo-Interface isatap.{895CA398-8C4F-4332-9558-642844FCB01B}:
      Connection-specific DNS Suffix . . . . . . . :
      Description . . . . . . . . . . . . . . . : Microsoft ISATAP Adapter #5
      Physical Address. . . . . . . . . . . . . : 00-00-00-00-00-00-00-E0
      DHCP Enabled . . . . . . . . . . . :No
      Automatic configuration. . . . . . . . . . : YES
      IPv6 Address . . . . . . . . . . . . : 2001::200:5efe:2.1.1.2 (primary)
      Link-local IPv6 Address. . . . . . . . : fe80::200:5efe:2.1.1.2%30 (primary)
      Default Gateway. . . . . . . . . . . . . : fe80::5efe:2.1.1.1%30
      DNS Servers  . . . . . . . . . . . : fc01:0:0:ffff::1%1
                                          fc01:0:0:ffff::2%1
                                          fc01:0:0:ffff::3%1
      NetBIOS over Tcpip  . . . . . . . : Disabled

   The preceding information shows that the host obtains the prefix 2001::/64 and generates the address 2001::200:5efe:2.1.1.2, and the ISATAP tunnel has been set up successfully.

3. Configure the IPv6 host.

   # Configure a static route to the border router tunnel on the IPv6 host so that PCs on two different networks can communicate through the ISATAP tunnel.

   C:\> netsh interface ipv6 set route 2001::/64 fc01::1

4. Verify the configuration.

   # View the IPv6 status of Tunnel0/0/2 on the ISATAP router, which should be Up.

   [Router] display ipv6 interface Tunnel 0/0/2

   Tunnel0/0/2 current state : UP

   IPv6 protocol current state : UP

   IPv6 is enabled, link-local address is FE80::5EFE:201:101

     Global unicast address(es):

       2001::5EFE:201:101, subnet is 2001::/64

     Joined group address(es):

       FF02::1:FF01:101

       FF02::2

       FF02::1

     MTU is 1500 bytes

     ND reachable time is 30000 milliseconds

     ND retransmit interval is 1000 milliseconds

     ND advertised reachable time is 0 milliseconds

     ND advertised retransmit interval is 0 milliseconds

     ND router advertisement max interval 600 seconds, min interval 200 seconds

     ND router advertisements live for 1800 seconds

     Hosts use stateless autoconfig for addresses

   # Ping the global unicast address of the tunnel interface on the ISATAP host running Windows 7 operating system from the ISATAP router.

   [Router] ping ipv6 2001::200:5efe:2.1.1.2

     PING 2001::200:5efe:2.1.1.2 : 56  data bytes, press CTRL_C to break

       Reply from 2001::200:5EFE:201:102

       bytes=56 Sequence=1 hop limit=64  time = 4 ms

       Reply from 2001::200:5EFE:201:102

       bytes=56 Sequence=2 hop limit=64  time = 3 ms

       Reply from 2001::200:5EFE:201:102

       bytes=56 Sequence=3 hop limit=64  time = 2 ms

       Reply from 2001::200:5EFE:201:102

       bytes=56 Sequence=4 hop limit=64  time = 2 ms

       Reply from 2001::200:5EFE:201:102

       bytes=56 Sequence=5 hop limit=64  time = 2 ms

     --- 2001::200:5efe:2.1.1.2 ping statistics ---

       5 packet(s) transmitted

       5 packet(s) received

       0.00% packet loss

       round-trip min/avg/max = 2/2/4 ms

   # Ping the global unicast address of the ISATAP router from the ISATAP host running Windows 7 operating system.

   C:\> ping 2001::5efe:2.1.1.1

   Pinging 2001::5efe:2.1.1.1 with 32 bytes of data:

   Reply from 2001::5efe:2.1.1.1: time=1ms

   Reply from 2001::5efe:2.1.1.1: time=1ms

   Reply from 2001::5efe:2.1.1.1: time=1ms

   Reply from 2001::5efe:2.1.1.1: time=1ms

   Ping statistics for 2001::5efe:2.1.1.1:

       Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),

   Approximate round trip times in milli-seconds:

       Minimum = 1ms, Maximum = 1ms, Average = 1ms

   # Ping the IPv6 host from the ISATAP host. The ping operation succeeds.

   C:\> ping fc01::2

   Pinging fc01::2 with 32 bytes of data:

   Reply from fc01::2: time<1ms

   Reply from fc01::2: time<1ms

   Reply from fc01::2: time<1ms

   Reply from fc01::2: time<1ms

   Ping statistics for fc01::2:

       Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),

   Approximate round trip times in milli-seconds:

       Minimum = 0ms, Maximum = 0ms, Average = 0ms