IPv6 and DNS hijacking leaks were the subjects of a university search recent article that tested commercial VPN providers . The results highlighted the VPN services is low for IPv6 leaks and attacks of DNS hijacking. Although results have been challenged by a number of companies that VPN on the date and misrepresent their capabilities, we like to err on the side of caution.
In the case of leakage IPv6 there is a simple solution to most of us. Do you use IPv6? If the answer is "no" or you do not know then you are likely not to use IPv6. In this scenario, the best way to prevent leakage is to disable IPv6. There are two ways to do this depending on the VPN service you happen to use.
Disable IPv6 in your VPN customer
Some VPN providers offer IPv6 leak protection. If you are not sure or if your VPN provides the functionality I would suggest looking at the settings page of their client software. You can also contact their technical support and ask. I know private Internet access and PureVPN have switches in their personal VPN software to disable IPv6. Let's take a look at PIA VPN customer
The following describes the IPv6 protection against leakage of PIA :.
protection against leaks IPv6 disables IPv6 traffic while the VPN. This ensures that no leaking IPv6 traffic over your normal Internet connection when connected to the VPN. This includes 6to4 and Teredo IPv6 tunneled traffic. It will be not block IPv6 in Windows XP if you manually enabled
Now let's take a look at IPv6 protection against leakage of PureVPN :.
As you can see PureVPN provides a check box on their page settings to enable IPv6 Leak protection "which in turn disables all IPv6 traffic or from your computer.
manually disable IPv6 on Windows
Microsoft began to include IPv6 in Windows XP (optional) and it was a mandatory part of the operating system since Windows Vista. You are probably on Windows 7, 8 or 10. Whichever version of the OS you use (Vista or later), you have several ways to disable IPv6. The first method is to automatically disable IPv6 in Windows. For this visit Microsoft IPv6 Guide .
The second method is to disable IPv6 manually via your registry. Again, I suggest you refer to IPv6 Microsoft guide. They will guide you through the process. The first thing you want to do is backup your registry. Make the wrong registry change can leave your system unusable. The Microsoft guide will give you the key values of specific registry for DisabledComponents key based on your goals
- 0 -. R e -enable all IPv6 components
- 0xff - disable all IPv6 components, except the IPv6 loopback interface
- 0x20 - prefer IPv4 over IPv6
- 0x10 - disable IPv6 on all nontunnel interfaces
- 0x01 - disable IPv6 on all tunnel interfaces
- 0x11 - disable all IPv6 interfaces except for IPv6 loopback interface
disable IPv6 for
network connectionin addition to disable IPv6 for all Windows communications, you can disable IPv6 on specific network interfaces. To do this, you want to open the control panel and go to display network status and tasks "in the Network Center and Sharing. Then you'll want to click on "change adapter settings" that will display your network connections. Right-click the connection you want to change and left click Properties. Now just uncheck the box Internet Protocol version 6 (TCP / IPv6) as shown below.
You can easily re-enable IPv6 communications at any time by checking the box in the future.
disable IPv6 on Mac OS X 10.7 and 10.8
Thanks to the IT team at the University of Louisville to share the steps to disable IPv6 on Mac OS X 10.5 or higher. We'll cover the instructions Mac OS X 10.7 and 10.8. please refer to their Guide for earlier versions.
to disable IPv6 in Mac OS X Yosemite (10.7 or 10.8), you want to start by going to Applications, then Utilities, and then click Terminal. You can get a list of your network interfaces by running the following command:
- networksetup -listallnetworkservices
Most only have the latest wi-fi network interfaces Mac. Executing the above command will list a LAN interface if you have one. Now you want to send these commands to disable IPv6:
- networksetup -setv6off Wi-Fi
- networksetup -setv6off Ethernet
You will probably only need the first command that disables IPv6 on your wi-fi connection. If you want to activate IPv6 in the future just type the following commands as you LAN in addition to wi-fi adapters on your Mac.
- networksetup -setv6automatic Wi-Fi
- networksetup -setv6automatic Ethernet
If you have multiple cards you might need to refer to them in order. Eg Ethernet 1, Ethernet 2, etc.
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