The 'Dumbing Down' Disaster Caused by LAN IPv6 Leaks: Many Routers Quietly Give Away Your Real Location
Your VPN only proxies IPv4, while IPv6 is left exposed on the public internet? Dig into the geolocation contradictions caused by IPv6 being enabled by default on modern gigabit fiber modems, and learn step by step how to shut down local IPv6 leaks.
1. The Hidden Culprit That Gives You Away: IPv6
China's three major carriers have now rolled out IPv6 across their networks. Many users' proxy clients only handle IPv4 traffic. When browsers make direct connections over IPv6, IPv6 packets carrying domestic province and city attribution information arrive directly at overseas servers, causing a fatal geographic contradiction.
2. Disable IPv6 to Eliminate the Hidden Risk Entirely
On your computer, go to Network & Internet settings -> Change adapter options, right-click the current network adapter and select Properties, then in the protocol list simply uncheck Internet Protocol Version 6 (TCP/IPv6) and save. This completely cuts off the source of the leak.