Reference document

Org
IETF
Pubnum
RFC 6891
Date
2013-04-01
Version
Title
Extension Mechanisms for DNS (EDNS(0))

Applicability

The Domain Name System’s wire protocol includes a number of fixed fields whose range has been or soon will be exhausted and does not allow requestors to advertise their capabilities to responders. This document describes backward-compatible mechanisms for allowing the protocol to grow. This document updates the Extension Mechanisms for DNS (EDNS(0)) specification (and obsoletes RFC 2671) based on feedback from deployment experience in several implementations. It also obsoletes RFC 2673 (Binary Labels in the Domain Name System) and adds considerations on the use of extended labels in the DNS.

Responsible Party

Name
FMN CPWG

Status

URI
https://www.ietf.org/rfc/rfc6891.txt

History

Flag Date RFC Version
added 2017-05-01 9-6 10.0
UUID
49b6d797-a2cf-4f58-8b6f-365abcea9bd6

Relationships

This standard is used by the following service profiles: