I am a bit confused between 6to4 and 6in4. From my understanding 6in4 is encapsulated IPv6 inside IPv4 header. That can be done manually from the routers. A few questions:
- Is 6to4 and 6in4 the same thing?
- For the tunnel broker, like he.net for example, is it 6in4 or 6to4? The tunnel broker is considered as IPv6 automatic transition technique.
- what is the RFC for 6to4? I know that 6in4 is 4213.
Also, why 6to4 is disabled by default in Windows 7?