Ideally, using just IP6 would be simpler, as every device gets a global address. Then you don’t need to mess with NAT, port forwarding and all that bullshit. Every device having multiple addresses just complicates things.
A device on your private IPv4 network can send packets directly to 104.21.36.127 via NAT. How will it send packets to 2606:4700:3033::6815:247f? There’s not enough space in the IPv4 header.
No shit.
But a private Lan will never need it.
There are 4 billion+ possible IP v4 addresses, nearly 600 million in the current private range.
Show me a private network with 600 million devices.
There’s no reason a device that doesn’t have a direct internet connection needs IP6.
Ideally, using just IP6 would be simpler, as every device gets a global address. Then you don’t need to mess with NAT, port forwarding and all that bullshit. Every device having multiple addresses just complicates things.
A device on your private IPv4 network can send packets directly to
104.21.36.127via NAT. How will it send packets to2606:4700:3033::6815:247f? There’s not enough space in the IPv4 header.