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ObsoletedPROPOSED STANDARDIETF stream

RFC 2671: Extension Mechanisms for DNS (EDNS0)

This RFC has been replaced. Do not implement against it for new work — it was formally obsoleted by RFC 6891.

Current document in this lineage: RFC 6891 — Extension Mechanisms for DNS (EDNS(0))

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

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 clients to advertise their capabilities to servers. This document describes backward compatible mechanisms for allowing the protocol to grow. [STANDARDS-TRACK]

Document record

Document ID
RFC2671
Published
August 1999
Authors
P. Vixie
Status
PROPOSED STANDARD
Stream
IETF
Area
int
Pages
7
Also known as
—
Obsoleted by:
RFC 6891

Topics

Standards lineage

This document is one revision in a chain of 3 RFCs, each formally replacing the one before it.

  1. RFC 2671 (1999)
  2. RFC 2673 (1999)
  3. RFC 6891 (2013) ✓

Read the full history of Extension Mechanisms for DNS (EDNS(0)) →

Referenced by

One later RFC formally updates or obsoletes part of this document.

Related documents

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About this page

The document record above — title, authors, date, status, stream, area, relationships, DOI and errata — is imported verbatim from the public RFC Editor index. The “in plain English” section is editorial: written by The metasystema editorial team, not part of the RFC. Where the two differ, the RFC text governs.

Last checked against the RFC Editor index on . RFCs are never revised after publication; changes are issued as new documents.

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canonical URL: /rfc/2671-extension-mechanisms-for-dns-edns0