Client ID in Forwarded DNS Queries
draft-tale-dnsop-edns0-clientid-01
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DNSOP Working Group R. Licht
Internet-Draft Charter Communications
Intended status: Standards Track D. Lawrence, Ed.
Expires: September 14, 2017 Akamai Technologies
March 13, 2017
Client ID in Forwarded DNS Queries
draft-tale-dnsop-edns0-clientid-01
Abstract
This draft defines a DNS EDNS option to carry a client-specific
identifier in DNS queries, with guidance for privacy protection of
such information.
Ed note
Text inside square brackets ([]) is additional background
information, answers to frequently asked questions, general musings,
etc. They will be removed before publication. This document is
being collaborated on in GitHub at <https://github.com/vttale/
edns0-clientid>. The most recent version of the document, open
issues, etc should all be available here. The authors gratefully
accept pull requests.
Status of This Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet-
Drafts is at http://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress."
This Internet-Draft will expire on September 14, 2017.
Copyright Notice
Copyright (c) 2017 IETF Trust and the persons identified as the
document authors. All rights reserved.
Licht & Lawrence Expires September 14, 2017 [Page 1]
Internet-Draft Client ID in Forwarded DNS Queries March 2017
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents
(http://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Privacy Considerations . . . . . . . . . . . . . . . . . . . 3
3. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 3
4. Option Format . . . . . . . . . . . . . . . . . . . . . . . . 4
5. Protocol Description . . . . . . . . . . . . . . . . . . . . 5
5.1. DNS Query . . . . . . . . . . . . . . . . . . . . . . . . 5
5.2. DNS Response . . . . . . . . . . . . . . . . . . . . . . 6
6. Using the DNS Address Family . . . . . . . . . . . . . . . . 6
7. Implementation Status . . . . . . . . . . . . . . . . . . . . 7
8. NAT Considerations . . . . . . . . . . . . . . . . . . . . . 7
9. Security Considerations . . . . . . . . . . . . . . . . . . . 7
10. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 8
11. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 8
12. References . . . . . . . . . . . . . . . . . . . . . . . . . 8
12.1. Normative References . . . . . . . . . . . . . . . . . . 8
12.2. Informative References . . . . . . . . . . . . . . . . . 9
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 10
1. Introduction
Some DNS operators generate, or wish to generate, customized DNS
responses based on the originator of a DNS query. For example,
[RFC7871], "Client Subnet in DNS Queries", defines a method to convey
partial IP network address information about the device that
originated a DNS request, so that a response could be targeted to be
topographically near the source.
Some specialized services, however, need more precise client identity
information to function adequately. For example, a parental control
service that restricts access to particular domains from particular
devices needs to have a device-specific identifier.
This document defines an EDNS [RFC6891] option to convey client
identification information that is relevant to the DNS query. It is
added by software on the client's local area network, for
transmission to the upstream DNS provider.
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