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How to disable IPv6 on Mac OS X

Updated

More details about IPv6 here: https://support.nordvpn.com/hc/en-us/articles/115000087325

In order to disable IPv6 on newer OS X versions, you will need to run a command through the Terminal application.  Please note that any changes to the network preferences may revert this setting and the command may need to be run again.

  • 1. Open Finder
  • 2. Click on Applications
  • 3. Click on Utilities Folder
  • 4. Double Click on Terminal.app
  • 5. Run the following command in the terminal window:

    networksetup -listallnetworkservices

    This will list all of your network interfaces and their names.
  • 6. Identify the network interface you are using, most commonly Ethernet or Wi-Fi. Use the following command in the terminal window to disable IPv6 on that interface. Please note that you may have to use quote marks to envelope the interface name. A few examples:

    networksetup -setv6off Ethernet
    networksetup -setv6off “Wi-Fi”

    You will be prompted to enter your OS X administrator password. Afterwards, IPv6 will be disabled.

While usually not necessary, if you wish to re-enable IPv6 on your device, you can simply run this command in the terminal:

networksetup -setv6automatic Wi-Fi
networksetup -setv6automatic Ethernet