Seriously, my knowledge ends with:
- It offers a shitload of IP addresses
- They look really complicated
- Something about every device in your local network being visible from everywhere?
- Some claim it obsoletes NAT?
I get that it’s probably too complicated a subject for an ELI5, so if there are good videos or resources explaining it in less than half an hour, feel free to share.
I guess the thing I mostly don’t get is:
If it’s just an extension of the address space, then why is it still such a big deal?
Why didn’t they add some sort of ipv4 compatibility layer into the new protocol and flip the switch everywhere 15 years ago?