
IPV6 and VPNs: What Users Need to Know
March 2025
As the internet continues to evolve, so too do the technologies that govern how we interact with it. Two such technologies that have become increasingly important in recent years are Internet Protocol version 6 (IPv6) and Virtual Private Networks (VPNs). This article aims to provide an overview of these technologies and what users need to know about them.
IPv6 is the most recent version of the Internet Protocol (IP), the communications protocol that provides an identification and location system for computers on networks and routes traffic across the Internet. IPv6 was developed by the Internet Engineering Task Force (IETF) to deal with the long-anticipated problem of IPv4 address exhaustion. IPv6 is intended to replace IPv4, which still carries the vast majority of Internet traffic as of 2021.
One of the key features of IPv6 is its vastly larger address space compared to IPv4. While IPv4 uses 32-bit addresses, resulting in approximately 4.3 billion possible addresses, IPv6 uses 128-bit addresses, resulting in a virtually unlimited number of addresses. This increased address space is crucial for the continued growth and development of the internet.
On the other hand, a VPN, or Virtual Private Network, is a service that allows you to connect to the internet via a server run by a VPN provider. All data traveling between your computer, phone, or tablet, and this 'VPN server' is securely encrypted. This setup has a number of advantages, including protecting your online privacy, shielding your browsing activity from prying eyes on public Wi-Fi, and allowing you to evade geographic restrictions on websites or streaming audio and video.
When it comes to IPv6 and VPNs, there are a few key points to consider. Firstly, not all VPNs support IPv6. If you're using a VPN that doesn't support IPv6, but your ISP does, you could potentially leak IPv6 traffic outside of the secure VPN tunnel. This could expose your real IP address and compromise your privacy. Therefore, if you're using a VPN for privacy reasons, it's important to ensure that it supports IPv6.
Some VPNs, such as AHAspeed VPN, HeiBao VPN, and XuanFeng VPN, offer IPv6 support, while others do not. If your VPN doesn't support IPv6, you can disable IPv6 on your device to ensure that all traffic goes through the VPN. However, this is a temporary solution and not recommended for the long term, as IPv6 is the future of the internet.
In conclusion, both IPv6 and VPNs are important technologies for the modern internet user. Understanding how they work and how they interact is crucial for maintaining your online privacy and security. As the internet continues to evolve, it's important to stay informed about these and other emerging technologies.