On Mon Mar 7 15:51:06 2016, Owen DeLong wrote: > To the best of my knowledge, Windows actually generates three > addresses… > > 1. Subnet Stable quasi-randomized address unrelated (or at least not > reversable to) MAC address. > 2. Privacy address which rotates frequently (for some definition of > frequently). > 3. Stable address related to MAC address. > > The 3rd one is standard SLAAC. > The second one is standard privacy extensions. > THe first one is unique to Windows. You’ll get the same address every > time you connect to the same subnet, but you won’t see that suffix for > that host on any other subnet.
It’s not exactly specific to Windows, dhcpcd use a something like that (my IPv6 is 2a00:5884:8316:2653:fd40:d47d:556f:c426). And at least, there is a RFC related to that, https://tools.ietf.org/html/rfc7217. -- alarig
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