Operational Considerations for Use of DNS in Internet of Things Devices
RFC 9726, “Operational Considerations for Use of DNS in Internet of Things Devices”, is a Best Current Practice document published in March 2025 by M. Richardson, W. Pan. The canonical text is published by the RFC Editor.
Abstract
This document details considerations about how Internet of Things (IoT) devices use IP addresses and DNS names. These concerns become acute as network operators begin deploying Manufacturer Usage Descriptions (MUD), as specified in RFC 8520, to control device access.
Also, this document makes recommendations on when and how to use DNS names in MUD files.
What “Best Current Practice” means
Documents the IETF community's recommended operational or procedural practice rather than a protocol specification.
The canonical text of RFC 9726 is hosted at rfc-editor.org. Available in HTML,TXT,PDF,XML.
- RFC 9725 WebRTC-HTTP Ingestion Protocol
- RFC 9727 api-catalog: A Well-Known URI and Link Relation to Help Discovery of APIs
- RFC 9728 OAuth 2.0 Protected Resource Metadata
- RFC 9724 State of Affairs for Randomized and Changing Media Access Control Addresses
- RFC 9729 The Concealed HTTP Authentication Scheme
- RFC 9723 BGP Colored Prefix Routing for Services Based on Segment Routing over IPv6
- RFC 9730 Interworking of GMPLS Control and Centralized Controller Systems
- RFC 9722 Fast Recovery for EVPN Designated Forwarder Election