On 8 March 2016 at 01:01, Alarig Le Lay <alarig@swordarmor.fr> wrote:
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.
It appears that RFC 7217 does not actually demand a 64 bit interface identifier. One could therefore do a non-64 bit RFC 7217 SLAAC on operating systems that support that. "We note that [RFC4291] requires that the Interface IDs of all unicast addresses (except those that start with the binary value 000) be 64 bits long. However, the method discussed in this document could be employed for generating Interface IDs of any arbitrary length, albeit at the expense of reduced entropy (when employing Interface IDs smaller than 64 bits)." Regards, Baldur