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What the IPv4 to IPv6 transition means for VPN users

What the IPv4 to IPv6 transition means for VPN users

25.09.2026
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If you use a VPN to secure your connection or access restricted sites, you may wonder what the ongoing transition from IPv4 to IPv6 means for your privacy and daily browsing. In short: most users do not need to change anything right now, but it’s important to understand how the shift could affect your experience, especially with VPN apps. On Hide Expert VPN, for example, you can use multiple connection protocols to stay connected even when standard VPNs are blocked, and the service handles both address types where relevant – so you don’t have to worry about compatibility as the internet evolves.

What’s changing with IPv4 and IPv6

IPv4 and IPv6 are versions of the Internet Protocol, which assigns unique addresses to devices connecting online. IPv4 uses 32-bit addresses, shown as four numbers separated by dots (like 172.16.254.1), and allows for over 4 billion possible addresses. With global internet users now exceeding available IPv4 addresses, IPv6 was introduced, using 128-bit addresses (displayed as eight groups of hexadecimal numbers separated by colons, like 2001:0db8:0000:0000:0000:8a2e:0370:7334). This allows for an almost unlimited number of devices to connect directly to the internet without address shortages.

What this means for VPN users

  • Connection stability: Most websites and services still use IPv4, but IPv6 is supported by an increasing number of networks, especially in newer systems. Some VPNs – including Hide Expert VPN – are designed to handle both protocols or to block IPv6 traffic if your connection isn’t protected, reducing the risk of accidental IP leaks.
  • Privacy and security: IPv6 includes built-in features for address encryption and authentication, potentially improving privacy. However, if your VPN or device isn’t set up to handle IPv6 properly, your real IP address could be exposed (a problem known as an IPv6 leak). Using a VPN with up-to-date protocol support minimizes this risk.
  • Bypassing blocks: If you rely on a VPN to access websites or apps blocked by your local provider or institution, the underlying protocol (IPv4 or IPv6) might affect whether you can connect. Custom VPN protocols like VLESS Reality, available in Hide Expert VPN apps, can keep you connected even if standard options are restricted.

What you should do now

  • Check your VPN settings: Make sure your VPN app is updated and, if possible, confirm it supports IPv6 or blocks it when not in use. This prevents accidental exposure of your IP address.
  • Test for leaks: After connecting to your VPN, use an online tool to check if your IPv6 address is visible. If it is, adjust your settings or contact your provider’s support team. For troubleshooting, you can reach out to the Hide Expert support team if you use their service.
  • No urgent action required: For most users, day-to-day browsing and VPN use will not be affected yet, as the majority of the internet still relies on IPv4. Just keep your apps and devices updated.

Key points to remember

The shift to IPv6 is a necessary response to the exhaustion of IPv4 addresses, but the transition is gradual and most internet activity still uses IPv4. VPN users should pay attention to how their service manages IPv6 traffic to avoid privacy issues. Hide Expert VPN and similar services are already set up to handle these changes, so you can continue using your VPN as usual – just check your settings and stay alert for news as the transition progresses.