orangeboats 3 minutes ago

There are already cases of Internet connectivity issues due to overloaded CGNAT. I know for a while I could only visit IPv6 websites, IPv4 technically works but the amount of packet drops meant that my IPv4 internet speed was only about 15KB/s!

It's the whole reason why I discovered a DNS server that synthesizes AAAA records, for websites that actually support IPv6 through their CDN. [0]

> As you said though, those users can reach v4 websites.

Therefore, the question is: Can those users really reach IPv4 websites?

Mind you, I don't expect the CGNAT-overloading issue to relieve over time.

[0]: https://gitlab.com/miyurusankalpa/IPv6-dns-server

briffle 19 hours ago

yes, with the increased latency of having to travel to the NAT64 server first. This can also cause you to not use the nearest CDN, etc.

electronbeam 19 hours ago

Its easier to get good latency and bandwidth over v6 than natted v4

  • commandersaki 18 hours ago

    What is the latency or bandwidth bottleneck in nat v4?

    • namibj 12 hours ago

      Taking the detour to the NAT.

      • commandersaki 4 hours ago

        NAT registers in the microseconds for packet processing time, that isn’t even comparable to Internet path jitter.

      • mort96 11 hours ago

        You mean that the packets go through a router? They would do that regardless though?

        • orangeboats 25 minutes ago

          Your typical router won't fill up its port mapping table. In fact, the 4th layer isn't involved at all so "ports" don't even exist as a concept.