Domain Name System Operations J. Abley Internet-Draft Cloudflare Intended status: Informational W. Kumari Expires: 17 May 2025 Google, Inc. 13 November 2024 Applicability Statement for the AS112 Project draft-jabley-dnsop-as112-applicability-latest Abstract The AS112 Project provides infrastructure that is used as a target for DNS queries that it is not possible to answer in a useful way, such as queries that relate to a private network that are sent to a public server. From time to time IETF protocols specify use of the AS112 Project. This document provides an Applicability Statement for the AS112 Project that aims to provide guidance for how and when the AS112 Project should be used. About This Document This note is to be removed before publishing as an RFC. Status information for this document may be found at https://datatracker.ietf.org/doc/draft-jabley-dnsop- as112-applicability/. Discussion of this document takes place on the Domain Name System Operations Working Group mailing list (mailto:dnsop@ietf.org), which is archived at https://mailarchive.ietf.org/arch/browse/dnsop/. Subscribe at https://www.ietf.org/mailman/listinfo/dnsop/. Source for this draft and an issue tracker can be found at https://github.com/ableyjoe/draft-jabley-as112-applicability. 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 https://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 17 May 2025. Copyright Notice Copyright (c) 2024 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 Revised BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the Revised BSD License. Table of Contents 1. Introduction 2. Terminology 3. Security Considerations 4. IANA Considerations 5. References 5.1. Normative References 5.2. Informative References Acknowledgments Authors' Addresses 1. Introduction Well, how about this? 2. Terminology The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in BCP 14 [RFC2119] [RFC8174] when, and only when, they appear in all capitals, as shown here. This document uses terminology related to the Domain Name System as described in [RFC8499]. 3. Security Considerations Make reference to the existing security guidance. Provide guidance on when sinking queries with the AS112 project is appropriate, and when it is not. For example, note that causing queries to be redirected to AS112 servers can present privacy risks. Note that protocols that intend to cause queries to be sent to AS112 servers should do so carefully, mindful that excessive traffic being sent to any destination can have the effect of denying service to both AS112 infrastructure and intermediate networks and systems. 4. IANA Considerations Give IANA directions about how to respond to requests from other documents that relate to AS112. Note that since there are known cases of protocols that specify that queries for particular names in the ARPA domain be redirected to AS112 infrastructure, the IANA should start the process of becoming equipped to provision DNAME RRSets in the ARPA zone. Perhaps clarify that the provisioning process involves ancilliary systems and processes and is not simply a matter of support for the DNAME resource record type in the servers that serve the ARPA zone. 5. References 5.1. Normative References [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, DOI 10.17487/RFC2119, March 1997, . [RFC8174] Leiba, B., "Ambiguity of Uppercase vs Lowercase in RFC 2119 Key Words", BCP 14, RFC 8174, DOI 10.17487/RFC8174, May 2017, . 5.2. Informative References [RFC8499] Hoffman, P., Sullivan, A., and K. Fujiwara, "DNS Terminology", RFC 8499, DOI 10.17487/RFC8499, January 2019, . Acknowledgments These people helped. Yes. Authors' Addresses Joe Abley Cloudflare Amsterdam Netherlands Email: jabley@cloudflare.com Warren Kumari Google, Inc. 1600 Amphitheatre Parkway Mountain View, 94043 United States of America Phone: +1 571 748 4373 Email: warren@kumari.net