RFC 3226 · PROPOSED STANDARD · 2001

DNSSEC and IPv6 A6 aware server/resolver message size requirements

Overview

RFC 3226, “DNSSEC and IPv6 A6 aware server/resolver message size requirements”, is a Proposed Standard document published in December 2001 by O. Gudmundsson. It updates RFC 2535, RFC 2874. It has since been updated by RFC 4033, RFC 4034, RFC 4035. The canonical text is published by the RFC Editor.

Abstract

This document mandates support for EDNS0 (Extension Mechanisms for DNS) in DNS entities claiming to support either DNS Security Extensions or A6 records. This requirement is necessary because these new features increase the size of DNS messages. If EDNS0 is not supported fall back to TCP will happen, having a detrimental impact on query latency and DNS server load. This document updates RFC 2535 and RFC 2874, by adding new requirements. [STANDARDS-TRACK]

Abstract as published in the RFC, via rfc-editor.org.

What “Proposed Standard” means

An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.

Read this RFC

The canonical text of RFC 3226 is hosted at rfc-editor.org. Available in TXT,HTML.

Relationships to other RFCs
This RFC updates
RFC 2535 RFC 2874
Other RFCs from 2001

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