It does this by encapsulating the IPv6 data inside IPv4 packets and sending them to a special Teredo server on the internet, which unwraps them.
You’ll notice it’s a pseudo-interface , not a real piece of hardware like your Wi-Fi card. That’s because it’s . It’s a virtual adapter created by Windows to manage this tunneling process. There’s no physical "Teredo cable" plugged into your PC. tunnel adapter teredo tunneling pseudo-interface
If you’ve ever dug into your Windows out of curiosity or frustration, you’ve probably stumbled upon a mysterious entry hidden inside the Network adapters section: It does this by encapsulating the IPv6 data