Subj : Why Are We Here? What's up with IPv6?
To   : Nil Alexandrov
From : Michiel van der Vlist
Date : Mon Jun 09 2025 09:32 am

Hello Nil,

On Monday June 09 2025 08:42, you wrote to All:

 NA> Hey, just curious - why the focus on IPv6?

Interesting new technology?

 NA> FidoNet works over modems and IP anyway, so what's the point of
 NA> differentiating between IPv4 and IPv6? Do you think there's a
 NA> realistic scenario where incoming connections might fail on IPv4 but
 NA> still work on IPv6?

Yes, there is such a scenario. The pool of IPv4 adresses has run out. Some providers use so called CGNAT for their customets. That means they no longer have a unique glabally routable IPv4 address. That makes unsollicited incoming connection IPv4 impossible. IPv6 solves that problem.


Cheers, Michiel

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