DHCP and Router Advertisement Options for the Discovery of Network- designated Resolvers
RFC 9463, “DHCP and Router Advertisement Options for the Discovery of Network- designated Resolvers”, is a Proposed Standard document published in November 2023 by M. Boucadair, T. Reddy.K, D. Wing, N. Cook, T. Jensen. The canonical text is published by the RFC Editor.
Abstract
This document specifies new DHCP and IPv6 Router Advertisement options to discover encrypted DNS resolvers (e.g., DNS over HTTPS, DNS over TLS, and DNS over QUIC). Particularly, it allows a host to learn an Authentication Domain Name together with a list of IP addresses and a set of service parameters to reach such encrypted DNS resolvers.
What “Proposed Standard” means
An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.
The canonical text of RFC 9463 is hosted at rfc-editor.org. Available in HTML,TXT,PDF,XML.
- RFC 9462 Discovery of Designated Resolvers
- RFC 9464 Internet Key Exchange Protocol Version 2 Configuration for Encrypted DNS
- RFC 9461 Service Binding Mapping for DNS Servers
- RFC 9465 PIM Null-Register Packing
- RFC 9460 Service Binding and Parameter Specification via the DNS
- RFC 9466 PIM Assert Message Packing
- RFC 9459 CBOR Object Signing and Encryption : AES-CTR and AES-CBC
- RFC 9468 Unsolicited Bidirectional Forwarding Detection for Sessionless Applications