IPv4 addresses are exhausted — all 4.3 billion have been allocated. IPv6 provides 340 undecillion addresses, ensuring the internet can continue to grow. Over 40% of internet traffic now uses IPv6, and major networks (Google, Facebook, mobile carriers) prioritize IPv6 traffic. Some mobile networks are IPv6-only with NAT64 for IPv4 compatibility. If your VPS doesn’t support IPv6, you’re potentially unreachable for a growing portion of internet users. Additionally, IPv6 can improve performance by eliminating NAT overhead.
Why IPv6 Matters Now
IPv4 addresses are exhausted — all 4.3 billion have been allocated. IPv6 provides 340 undecillion addresses, ensuring the internet can continue to grow. Over 40% of internet traffic now uses IPv6, and major networks (Google, Facebook, mobile carriers) prioritize IPv6 traffic. Some mobile networks are IPv6-only with NAT64 for IPv4 compatibility. If your VPS doesn’t support IPv6, you’re potentially unreachable for a growing portion of internet users. Additionally, IPv6 can improve performance by eliminating NAT overhead.
Configuring IPv6 on Your VPS
Most VPS providers assign an IPv6 address automatically. Verify with ip -6 addr show. Configure your web server to listen on IPv6: in Nginx, add listen [::]:80 and listen [::]:443 ssl. Update your firewall: ip6tables or ufw with IPv6 enabled. Add AAAA DNS records pointing to your IPv6 address alongside existing A records. Test with curl -6 yourdomain.com to verify IPv6 connectivity.
Dual-Stack Best Practices
Run dual-stack (IPv4 + IPv6) for maximum compatibility. Ensure your firewall rules are mirrored for both protocols — a common mistake is only configuring IPv4 firewall rules while leaving IPv6 wide open. Test all services over both protocols. Monitor IPv6 traffic separately to understand adoption among your users. Velox Media’s premium managed infrastructure include IPv6 support, keeping your VPS future-proof as the internet transitions.
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