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A comment on AWS to start charging for IPv4 usage, but critical services don't support IPv6. Parent comment

Re:AWS to start charging for IPv4 usage, but critical servic... by adriancr on Friday November 10, 2023 @12:49PM (#38222002)
> Yes. You no longer need NAT, so port negotiation is much easier (even when inbound is blocked)

In practice someone can still configure NAT on IPv6 same as on IPv4 at least on Linux and some vendors, even if IETF resists standardizing it.

https://blogs.infoblox.com/ipv6-coe/you-thought-there-was-no...

So you might still see CGNAT if someone is determined to configure it.

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Re:AWS to start charging for IPv4 usage, but critical servic... by jjjjmoney on Friday November 10, 2023 @12:51PM (#38222029)
Yes this is absolutely possible, but I do like that IPv6 doesn't mandate NAT.
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