The IESG has approved the following document: - 'IANA Considerations for IPv6 Neighbor Discovery Prefix Information Option Flags' (draft-ietf-6man-ndpioiana-04.txt) as Proposed Standard This document is the product of the IPv6 Maintenance Working Group. The IESG contact persons are Suresh Krishnan and Terry Manderson. A URL of this Internet Draft is: https://datatracker.ietf.org/doc/draft-ietf-6man-ndpioiana/ Technical Summary The Prefix Information Option in the IPv6 Neighbor Discovery Router Advertisement defines an 8-bit flag field with two flags defined and the remaining 6 bits reserved (Reserved1). RFC 6275 has defined a new flag from this field without creating a IANA registry or updating RFC 4861. The purpose of this document is to request that IANA to create a new registry for the PIO flags to avoid potential conflict in the use of these flags. Working Group Summary There is support for this document in the 6MAN working group. There is a consensus to advance this document. Document Quality The quality of the document is very good, it has received adequate review in the working group on the mailing list and at a 6man session at an IETF meeting. Personnel Bob Hinden is the Document Shepherd. Suresh Krishnan is the Responsible Area Director.