https://app.kbone.net/vault/rfc/docid/4592
RFC4193: Unique Local IPv6 Unicast Addresses
Network Working Group R. Hinden Request for Comments: 4193 Nokia Category: Standards Track B. Haberman JHU-APL ...
https://app.kbone.net/vault/rfc/docid/5853
RFC5375: IPv6 Unicast Address Assignment Considerations
Network Working Group G. Van de Velde Request for Comments: 5375 C. Popoviciu Category: Informational Cisco Systems T. Chown ...