Example for Configuring IPv6 Addresses for Interfaces

This example shows how to configure IPv6 addresses for interfaces.

Networking Requirements

As shown in Figure 1, DeviceA and DeviceB are connected through GE interfaces. To check the connectivity between the two interfaces, configure global unicast IPv6 addresses 2001:db8::1/32 and 2001:db8::2/32 for the GE interfaces.

Figure 1 Configuring IPv6 addresses for interfaces

Interface 1 in this example represents GE 0/1/0.

Device Name	Interface	IP Address
DeviceA	GE 0/1/0	2001:db8::1/32
DeviceB	GE 0/1/0	2001:db8::2/32

Configuration Roadmap

The configuration roadmap is as follows:

Enable IPv6 on interfaces.
Configure global unicast IPv6 addresses for interfaces.

Data Preparation

To complete the configuration, you need global unicast IPv6 addresses of the interfaces.

Procedure

Configure global unicast IPv6 addresses for interfaces.

# Configure DeviceA.

<HUAWEI> system-view
[~HUAWEI] sysname DeviceA
[*HUAWEI] commit
[~DeviceA] interface GigabitEthernet 0/1/0
[~DeviceA-GigabitEthernet0/1/0] ipv6 enable
[*DeviceA-GigabitEthernet0/1/0] ipv6 address 2001:db8::1 32
[*DeviceA-GigabitEthernet0/1/0] undo shutdown
[*DeviceA-GigabitEthernet0/1/0] commit
[~DeviceA-GigabitEthernet0/1/0] quit

# Configure DeviceB.

<HUAWEI> system-view
[~HUAWEI] sysname DeviceB
[*HUAWEI] commit
[~DeviceB] interface GigabitEthernet 0/1/0
[~DeviceB-GigabitEthernet0/1/0] ipv6 enable
[*DeviceB-GigabitEthernet0/1/0] ipv6 address 2001:db8::2 32
[*DeviceB-GigabitEthernet0/1/0] undo shutdown
[*DeviceB-GigabitEthernet0/1/0] commit
[~DeviceB-GigabitEthernet0/1/0] quit

Verify the configuration.

If you can view the configured unicast global addresses and that the interfaces and the IPv6 protocol are in the Up state, it indicates that the configuration is successful.

# Display the interface information of DeviceA.

[~DeviceA] display ipv6 interface GigabitEthernet 0/1/0
GigabitEthernet0/1/0 current state : UP
IPv6 protocol current state : UP
link-local address is FE80::C964:0:B8B6:1
  Global unicast address(es):
    2001:db8::1, subnet is 2001:db8::/32
  Joined group address(es):
    FF02::1:FF00:1
    FF02::1:FFB6:1
    FF02::2
    FF02::1
  MTU is 4470 bytes
  ND DAD is enabled, number of DAD attempts: 1
  ND reachable time is 1200000 milliseconds
  ND retransmit interval is 1000 milliseconds
  Hosts use stateless autoconfig for addresses

# Display the interface information of DeviceB.

[~DeviceB] display ipv6 interface GigabitEthernet 0/1/0
GigabitEthernet0/1/0 current state : UP
IPv6 protocol current state : UP
link-local address is FE80::2D6F:0:7AF3:1
  Global unicast address(es):
    2001:db8::2, subnet is 2001:db8::/32
  Joined group address(es):
    FF02::1:FF00:2
    FF02::1:FFF3:1
    FF02::2
    FF02::1
  MTU is 4470 bytes
  ND DAD is enabled, number of DAD attempts: 1
  ND reachable time is 1200000 milliseconds
  ND retransmit interval is 1000 milliseconds
  Hosts use stateless autoconfig for addresses

# Ping the link-local address of DeviceB from DeviceA. Note that you need to use the parameter -i to specify the interface corresponding to the link-local address.

[~DeviceA] ping ipv6 fe80::2d6f:0:7af3:1 -i GigabitEthernet 0/1/0
  PING FE80::2D6F:0:7AF3:1 : 56  data bytes, press CTRL_C to break
    Reply from FE80::2D6F:0:7AF3:1
    bytes=56 Sequence=1 hop limit=64  time = 60 ms
    Reply from FE80::2D6F:0:7AF3:1
    bytes=56 Sequence=2 hop limit=64  time = 50 ms
    Reply from FE80::2D6F:0:7AF3:1
    bytes=56 Sequence=3 hop limit=64  time = 50 ms
    Reply from FE80::2D6F:0:7AF3:1
    bytes=56 Sequence=4 hop limit=64  time = 30 ms
    Reply from FE80::2D6F:0:7AF3:1
    bytes=56 Sequence=5 hop limit=64  time = 1 ms
  --- FE80::2D6F:0:7AF3:1 ping statistics ---
    5 packet(s) transmitted
    5 packet(s) received
    0.00% packet loss
    round-trip min/avg/max = 1/38/60 ms

# Ping the global unicast IPv6 address of DeviceB from DeviceA.

[~DeviceA] ping ipv6 2001:db8::2
  PING 2001:db8::2 : 56  data bytes, press CTRL_C to break
    Reply from 2001:db8::2
    bytes=56 Sequence=1 hop limit=64  time = 30 ms
    Reply from 2001:db8::2
    bytes=56 Sequence=2 hop limit=64  time = 50 ms
    Reply from 2001:db8::2
    bytes=56 Sequence=3 hop limit=64  time = 50 ms
    Reply from 2001:db8::2
    bytes=56 Sequence=4 hop limit=64  time = 20 ms
    Reply from 2001:db8::2
    bytes=56 Sequence=5 hop limit=64  time = 40 ms
  --- 2001:db8::2 ping statistics ---
    5 packet(s) transmitted
    5 packet(s) received
    0.00% packet loss
    round-trip min/avg/max = 20/38/50 ms

Configuration Files

DeviceA configuration file

#
 sysname DeviceA
#
interface GigabitEthernet0/1/0
undo shutdown
ipv6 enable
ipv6 address 2001:db8::1/32
#
return

DeviceB configuration file

#
 sysname DeviceB
#
interface GigabitEthernet0/1/0
undo shutdown
ipv6 enable
ipv6 address 2001:db8::2/32
#
return