https://app.knowbase.one/vault/rfc/docid/3958
RFC3587: IPv6 Global Unicast Address Format
Network Working Group R. Hinden Request for Comments: 3587 Nokia Obsoletes: 2374 S. Deering Category: Informational Cisco ...
https://app.knowbase.one/vault/rfc/docid/4686
RFC4291: IP Version 6 Addressing Architecture
Network Working Group R. Hinden Request for Comments: 4291 Nokia Obsoletes: 3513 S. Deering Category: Standards Track Cisco Systems ...