The IESG has approved the following document: - 'Prioritizing known-local IPv6 ULAs through address selection policy' (draft-ietf-6man-rfc6724-update-25.txt) as Proposed Standard
This document is the product of the IPv6 Maintenance Working Group. The IESG contact persons are Erik Kline and Éric Vyncke. A URL of this Internet-Draft is: https://datatracker.ietf.org/doc/draft-ietf-6man-rfc6724-update/ Technical Summary This document draws on several years of operational experience to update RFC 6724, defining the concept of "known-local" ULA prefixes that enable ULA-to-ULA communications within fd00::/8 to become preferred over both IPv4-IPv4 and GUA-to-GUA for local use. The document defines the means by which nodes can both identify and insert such prefixes into their address selection policy table. It also clarifies the mandatory, unconditional requirement for support for Rule 5.5 and demotes the preference for 6to4 addresses. These changes to default behavior improve supportability of common use cases, including automatic / unmanaged scenarios, and makes preference for IPv6 over IPv4 consistent in local site networks for both ULA and GUA prefixes. It is recognized that some less common deployment scenarios may require explicit configuration or custom changes to achieve desired operational parameters. Working Group Summary The document has been actively discussed in the WG mailing list and during 6MAN sessions, with many participants expressing their opinions, comments and suggestions. Document Quality There are two implementations of the proposed changes to RFC6724: - Android implements the proposed changes to insert "known-local" ULAs into the policy table: https://r.android.com/3046000 - The authors created a proof-of-concept implementation, available at https://github.com/jeremy-duncan/raio_ula Those details are also reported in The "Implementation Status" section of the document. Personnel The Document Shepherd for this document is Jen Linkova. The Responsible Area Director is Erik Kline. _______________________________________________ IETF-Announce mailing list -- [email protected] To unsubscribe send an email to [email protected]
