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ssh 64:ff9b::1.3.3.7 What address syntax is that? I mean I can easily guess what it means, but I wasn't aware such mixture exists. Do connect(2) and friends su
by usr1106 3y ago
ssh 64:ff9b::1.3.3.7
What address syntax is that? I mean I can easily guess what it means, but I wasn't aware such mixture exists. Do connect(2) and friends support that?
- g232089 3y agoIt's an RFC6052 address.
- usr1106 3y agoThanks for the pointer. Actually RFC6052 just refers to RFC4291 from 2006 in this case. And that simply calls it an alternative representation. Edit: RFC1884 from 1995 already had it, nothing has changed in that aspect.
- chungy 3y agoIt's an IPv4-mapped IPv6 address. Just interpret the IPv4 address like it's the last 32 bits of the v6 address. In the example, 64:ff9b::103:307 is equivalent. A more complicated example might be akin to 64:ff9b::198.51.100.231, equivalent to 64:ff9b::c633:64e7.
- pavel_odintsov 3y agoThank you very much for this question. I've rewrote and improve my article to cover exactly this topic: https://pavel.network/building-gateway-to-access-legacy-ipv4-internet-from-ipv6-only-work-laptop/ https://pavel.network/building-gateway-to-access-legacy-ipv4...