RFC 1884: “IP Edition 6 Addressing Architecture” works by using that phrase for a few bits at the end of an IPv6 deal with. (The number of bits seemed to change in some various illustrations, but this identifier was usually based upon the MAC-forty eight tackle of a community card.) https://tysoniacoc.bloggosite.com/32364304/helping-the-others-realize-the-advantages-of-whatsmyip