Extensions to DNS (EDNS)

Document Type Expired Internet-Draft (dnsind WG)
Author Paul Vixie 
Last updated 1998-08-12
Stream Internet Engineering Task Force (IETF)
Intended RFC status (None)
Expired & archived
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Stream WG state WG Document
Document shepherd No shepherd assigned
IESG IESG state Expired
Consensus Boilerplate Unknown
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


The Domain Name System's wire protocol includes a number of fixed fields whose range has been or soon will be exhausted, does not allow clients to advertise their capabilities to servers, and does not support the use of multiple questions per request. This document describes backward compatible mechanisms for allowing the protocol to grow.


Paul Vixie (vixie@isc.org)

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)