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The IPv6 Transition

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215 points todsacerdoti | 1 comments | 20 Oct 24 05:54 UTC | HN request time: 0s | source
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dfboyd ◴[20 Oct 24 06:48 UTC] No.41893436[source]▶
https://cr.yp.to/djbdns/ipv6mess.html still as relevant as the day it was written
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Plasmoid ◴[20 Oct 24 07:37 UTC] No.41893648[source]▶
Time has not been kind to this article. It's basically a compete list of fallacies that people believe about ipv6.
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x3n0ph3n3 ◴[20 Oct 24 08:20 UTC] No.41893833[source]▶
Oh, is IPv6 now backwards compatible with IPv4? No? I guess not a complete list of fallacies.
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1. welterde ◴[21 Oct 24 07:11 UTC] No.41901492[source]▶
IPv6 clients (or in theory any kind of IPv4 successor) can reach IPv4 servers via some kind of translation layer (for example NAT64) - so IPv6 is backwards-compatible with IPv4 in that direction. The inverse direction (IPv4 client to IPv6 server) is however not possible, since IPv4 is not forward-compatible with any possible successor, because it is not possible to encode more information into 32-bit than 32-bit.