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NAT64/DNS64 detection via SRV Records

Document Type Expired Internet-Draft (v6ops WG)
Expired & archived
Author Martin Huněk
Last updated 2019-09-12 (Latest revision 2019-03-11)
RFC stream Internet Engineering Task Force (IETF)
Intended RFC status (None)
Additional resources Mailing list discussion
Stream WG state WG Document
Document shepherd (None)
IESG IESG state Expired
Consensus boilerplate Unknown
Telechat date (None)
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


This document specifies the way of discovering the NAT64 pools in use as well as DNS servers providing DNS64 service to the local clients. The discovery is done via SRV records, which also allows asignment of priorities to the NAT64 pools as well as DNS64 servers. It also allows clients to have diferent DNS providers than NAT64 provider, while providing a secure way via DNSSEC validation of provided SRV records. This way, it provides DNS64 service even in case where DNS over HTTPS is used.


Martin Huněk

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)