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by cassianoleal 2096 days ago
Good luck if you're behind CGNAT on IPv4, which an increasingly high number of people are.
1 comments

Which is why I said pcp. It helps to read the comment.
Which only works if the ISP gateway has support for it and has it enabled, which in my particular case (and I suspect many others) is not true.

IPv6, OTOH, pretty much works out of the box.

It helps to become better informed.