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Sun System Handbook (ISO 3.4 June 2011)

Enter a MAC address or IPv6 LL to convert to the other.
For IPv6 LL - this should be a classic EUI-64 LL (see note at bottom of page).

* Note: Many modern OSes no longer generate and assign this classic RFC 4291 style address - rather opting for stable privacy addresses even on link local (RFC 7217)