Special-Use Domain 'home.arpa.'
RFC 8375

Document Type RFC - Proposed Standard (May 2018; No errata)
Updates RFC 7788
Last updated 2018-05-17
Replaces draft-pfister-homenet-dot
Stream IETF
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Reviews
Stream WG state Submitted to IESG for Publication
Document shepherd Ray Bellis
Shepherd write-up Show (last changed 2017-07-25)
IESG IESG state RFC 8375 (Proposed Standard)
Consensus Boilerplate Yes
Telechat date
Responsible AD Terry Manderson
Send notices to Ray Bellis <ray@bellis.me.uk>
IANA IANA review state Version Changed - Review Needed
IANA action state RFC-Ed-Ack
Internet Engineering Task Force (IETF)                        P. Pfister
Request for Comments: 8375                                 Cisco Systems
Updates: 7788                                                   T. Lemon
Category: Standards Track                            Nibbhaya Consulting
ISSN: 2070-1721                                                 May 2018

                    Special-Use Domain 'home.arpa.'

Abstract

   This document specifies the behavior that is expected from the Domain
   Name System with regard to DNS queries for names ending with
   '.home.arpa.' and designates this domain as a special-use domain
   name. 'home.arpa.' is designated for non-unique use in residential
   home networks.  The Home Networking Control Protocol (HNCP) is
   updated to use the 'home.arpa.' domain instead of '.home'.

Status of This Memo

   This is an Internet Standards Track document.

   This document is a product of the Internet Engineering Task Force
   (IETF).  It represents the consensus of the IETF community.  It has
   received public review and has been approved for publication by the
   Internet Engineering Steering Group (IESG).  Further information on
   Internet Standards is available in Section 2 of RFC 7841.

   Information about the current status of this document, any errata,
   and how to provide feedback on it may be obtained at
   https://www.rfc-editor.org/info/rfc8375.

Copyright Notice

   Copyright (c) 2018 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
   (https://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
   to this document.  Code Components extracted from this document must
   include Simplified BSD License text as described in Section 4.e of
   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Pfister & Lemon              Standards Track                    [Page 1]
RFC 8375                       home.arpa.                       May 2018

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Requirements Language . . . . . . . . . . . . . . . . . . . .   4
   3.  General Guidance  . . . . . . . . . . . . . . . . . . . . . .   4
   4.  Domain Name Reservation Considerations  . . . . . . . . . . .   4
   5.  Updates to Home Networking Control Protocol . . . . . . . . .   7
   6.  Security Considerations . . . . . . . . . . . . . . . . . . .   7
     6.1.  Local Significance  . . . . . . . . . . . . . . . . . . .   7
     6.2.  Insecure Delegation . . . . . . . . . . . . . . . . . . .   8
     6.3.  Bypassing Manually Configured Resolvers . . . . . . . . .   9
   7.  Delegation of 'home.arpa.'  . . . . . . . . . . . . . . . . .   9
   8.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   9
   9.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  10
     9.1.  Normative References  . . . . . . . . . . . . . . . . . .  10
     9.2.  Informative References  . . . . . . . . . . . . . . . . .  10
   Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . .  12
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  12

Pfister & Lemon              Standards Track                    [Page 2]
RFC 8375                       home.arpa.                       May 2018

1.  Introduction

   Users and devices within a home network (hereafter referred to as
   "homenet") require devices and services to be identified by names
   that are unique within the boundaries of the homenet [RFC7368].  The
   naming mechanism needs to function without configuration from the
   user.  While it may be possible for a name to be delegated by an ISP,
   homenets must also function in the absence of such a delegation.
   This document reserves the name 'home.arpa.' to serve as the default
   name for this purpose, with a scope limited to each individual
   homenet.

   This document corrects an error in [RFC7788] by replacing '.home'
   with 'home.arpa.' as the default domain name for homenets. '.home'
   was selected as the most user-friendly option; however, there are
   existing uses of '.home' that may be in conflict with this use.
   Evidence indicates that '.home' queries frequently leak out and reach
   the root name servers [ICANN1] [ICANN2].

   In addition, for compatibility with DNSSEC (see Section 6), it's
   necessary that an insecure delegation (see Section 4.3 of [RFC4035])
   be present for the name.  There is an existing process for allocating
   names under '.arpa.'  [RFC3172].  No such process is available for
   requesting a similar delegation in the root at the request of the
   IETF, which does not administer that zone.  As a result, all
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