Internet Assigned Numbers Authority

DNS Service Bindings (SVCB)

Created
2022-05-26
Last Updated
2022-08-25
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Registry included below

Service Parameter Keys (SvcParamKeys)

Expert(s)
Benjamin Schwartz, David Lawrence
Reference
[RFC-ietf-dnsop-svcb-https-10]
Available Formats

CSV
Range Registration Procedures
0-65279 Expert Review
65280-65534 Private Use
Number Name Meaning Reference Change Controller
0 mandatory Mandatory keys in this RR [RFC-ietf-dnsop-svcb-https-10, Section 8] IETF
1 alpn Additional supported protocols [RFC-ietf-dnsop-svcb-https-10, Section 7.1] IETF
2 no-default-alpn No support for default protocol [RFC-ietf-dnsop-svcb-https-10, Section 7.1] IETF
3 port Port for alternative endpoint [RFC-ietf-dnsop-svcb-https-10, Section 7.2] IETF
4 ipv4hint IPv4 address hints [RFC-ietf-dnsop-svcb-https-10, Section 7.4] IETF
5 ech Encrypted ClientHello info [RFC-ietf-dnsop-svcb-https-10, Section 7.3] IETF
6 ipv6hint IPv6 address hints [RFC-ietf-dnsop-svcb-https-10, Section 7.4] IETF
7 dohpath DNS over HTTPS path template [RFC-ietf-add-svcb-dns-07] IETF
8-65279 Unassigned
65280-65534 N/A Reserved for Private Use [RFC-ietf-dnsop-svcb-https-10] IETF
65535 N/A Reserved ("Invalid key") [RFC-ietf-dnsop-svcb-https-10] IETF