How to configure static IPv6 address?

To configure a static IPv6 address on a device, the steps may vary depending on the operating system. Below are instructions for configuring a static IPv6 address on Windows, Linux, and macOS.

Windows

1. Open Network Connections:

   • Press Win + R, type ncpa.cpl, and press Enter.

2. Select Network Adapter:

   • Right-click on the network adapter you want to configure and select Properties.

3. Select Internet Protocol Version 6 (TCP/IPv6):

   • In the list, find and select Internet Protocol Version 6 (TCP/IPv6), then click Properties.

4. Configure Static IPv6 Address:

   • Select Use the following IPv6 address.
   • Enter the desired IPv6 address, subnet prefix length (e.g., 64), and default gateway.
   • Optionally, enter DNS server addresses.

5. Save Settings:

   • Click OK to save the settings, then close the properties window.

Linux (Using Terminal)

1. Open Terminal.

2. Edit Network Configuration:

   • Depending on your Linux distribution, you may need to edit the network configuration file. For example, on Ubuntu, you can use:

     sudo nano /etc/netplan/01-netcfg.yaml

   • Add the following configuration (adjust the interface name and addresses accordingly):

     network:
       version: 2
       ethernets:
         eth0:
           dhcp4: no
           dhcp6: no
           addresses:
             - 2001:db8::1/64
           gateway6: 2001:db8::fffe
           nameservers:
             addresses:
               - 2001:4860:4860::8888
               - 2001:4860:4860::8844

3. Apply Changes:

   • Save the file and apply the changes:

     sudo netplan apply

macOS

1. Open System Preferences:

   • Click on the Apple menu and select System Preferences.

2. Select Network:

   • Click on Network.

3. Select Network Interface:

   • Choose the network interface (e.g., Wi-Fi or Ethernet) you want to configure.

4. Configure IPv6:

   • Click on the Advanced button, then go to the TCP/IP tab.
   • From the Configure IPv6 dropdown, select Manually.
   • Enter the desired IPv6 address, subnet prefix length, and router address.

5. Save Settings:

   • Click OK, then Apply to save the changes.

Verification

After configuring the static IPv6 address, you can verify the configuration:

• Windows: Open Command Prompt and run:

  ipconfig

• Linux: Use the command:

  ip -6 addr show

• macOS: Use the command:

  ifconfig

This will display the configured IPv6 addresses for your network interfaces.