IPv6 ND PIO Flags IANA considerations

Document Type Replaced Internet-Draft (6man WG)
Last updated 2017-12-06 (latest revision 2017-09-19)
Replaced by draft-ietf-6man-ndpioiana
Stream IETF
Intended RFC status Proposed Standard
Expired & archived
pdf htmlized bibtex
Stream WG state Adopted by a WG
Document shepherd No shepherd assigned
IESG IESG state Replaced by draft-ietf-6man-ndpioiana
Consensus Boilerplate Yes
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


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 reservered (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 IANA to create a new registry for the PIO flags to avoid potential conflict in the use of these flags.


Ole Trøan (ot@cisco.com)

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)