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this post was submitted on 26 Jun 2024
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Unpopular Opinion
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I'd read a lot if people saying how good and easy IPv6 was and I thought I'd use it as an opportunity to learn about it.
But turns out the only thing it does is give everything a public IP because the creators were so obsessed about getting rid of NAT. Nothing else seems to have been thought through.
There are IETF mailing list threads where no one has a clue as to why it's not being adopted, including one where they discover their own RFC is inconsistent with itself and that's the reason why IPv4 is given higher priority than fd00::/8. You can tell how half baked it is when you look at the number of revisions, additional protocols that have been added decades after it was initially proposed.
Their hatred of NAT seems to drive everything, but for most home and business users NAT is a great feature that drives so much simplicity by keeping you private networks private and independent of the rest of the internet.
Yeah, NAT is great for home users. Unless your ISP is also using (carrier grade) NAT. Then you're fucked by double NAT and have to call your ISP every time you want to forward a port.
Obviously with IPv6 there's be no need for CGNAT. But NAT within each household or business is useful.