Hi, We have published a revision of our IETF Internet-Draft "IPv6 Addressing Considerations". It is available at: https://datatracker.ietf.org/doc/html/draft-gont-v6ops-ipv6-addressing-consi... It discusses a lot of practical considerations regarding IPv6 addressing, so we'd love to hear from you if there's any that we missed or that you think we got wrong. Abstract IPv6 addresses can differ in a number of properties, such as scope, stability, and intended usage type. This document analyzes the impact of these properties on aspects such as security, privacy, interoperability, and network operations, with the goal of providing guidance about IPv6 address usage. Additionally, it identifies challenges and gaps that currently prevent systems and applications from leveraging the increased flexibility and availability of IPv6 addresses. Thanks! Regards, -- Fernando Gont SI6 Networks e-mail: fgont@si6networks.com PGP Fingerprint: 6666 31C6 D484 63B2 8FB1 E3C4 AE25 0D55 1D4E 7492