RFC 1884: “IP Model 6 Addressing Architecture” utilizes that phrase for a few bits at the end of an IPv6 tackle. (The quantity of bits looked as if it would differ in a few different examples, but this identifier was typically determined by the MAC-forty eight address of the network https://loansinsurance18157.bloguetechno.com/a-simple-key-for-whatsmyip-unveiled-61602924