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RFC 9665: Service Registration Protocol for DNS-Based Service Discovery

In plain English — editorial summary, not part of the RFC

The Service Registration Protocol (SRP) for DNS-based Service Discovery (DNS-SD) uses the standard DNS Update mechanism to enable DNS-SD using only unicast packets. This makes it possible to deploy DNS-SD without multicast, which greatly improves scalability and improves performance on networks where multicast service is not an optimal choice, particularly IEEE 802.11 (Wi-Fi) and IEEE 802.15.4 networks. DNS-SD Service registration uses public keys and SIG(0) to allow services to defend their registrations.

Document record

Document ID
RFC9665
Published
June 2025
Authors
T. Lemon; S. Cheshire
Status
PROPOSED STANDARD
Stream
IETF
Area
int
Pages
36
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canonical URL: /rfc/9665-service-registration-protocol-for-dns-based-service-discovery