Special Use Domain Name 'ipv4only.arpa'
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From: The IESG <email@example.com> To: IETF-Announce <firstname.lastname@example.org> Cc: email@example.com, firstname.lastname@example.org, email@example.com, The IESG <firstname.lastname@example.org> Subject: Protocol Action: 'Special Use Domain Name 'ipv4only.arpa'' to Proposed Standard (draft-cheshire-sudn-ipv4only-dot-arpa-17.txt) The IESG has approved the following document: - 'Special Use Domain Name 'ipv4only.arpa'' (draft-cheshire-sudn-ipv4only-dot-arpa-17.txt) as Proposed Standard This document has been reviewed in the IETF but is not the product of an IETF Working Group. The IESG contact person is Warren Kumari. A URL of this Internet Draft is: https://datatracker.ietf.org/doc/draft-cheshire-sudn-ipv4only-dot-arpa/
Technical Summary The specification for how a client discovers its local network's NAT64 prefix [RFC7050] defines the special name 'ipv4only.arpa' for this purpose, but in its Domain Name Reservation Considerations section that specification indicates that the name actually has no particularly special properties would require special handling, and does not request IANA to record the name in the Special-Use Domain Names registry. Consequently, despite the well articulated special purpose of the name, 'ipv4only.arpa' was not recorded in the Special-Use Domain Names registry as a name with special properties. This document describes the special treatment required, formally declares the special properties of the name, and adds similar declarations for the corresponding reverse mapping names. Working Group Summary This document is AD sponsored - it was considered for adoption in the DNSOP WG. While there was no major controversy or objections, the WG didn't declined to adopt it. Warren Kumari (as Ops AD) agreed to AD sponsor it, informed the DNSOP WG / BEHAVE lists, and asked for feedback. The authors received, and addressed / incorporated IETF LC comments. Document Quality The document is clear and understandable - it corrects an oversight / omission, and provides guidance to implementers. It also corrects / records the status in an IANA registry. Personnel Warren Kumari is the responsible AD, and shepherd.