Issues with Dual Stack IPv6 on by Default

Document Type Expired Internet-Draft (v6ops WG)
Authors Sebastien Roy  , Alain Durand  , James Paugh 
Last updated 2015-10-14 (latest revision 2004-07-20)
Stream Internet Engineering Task Force (IETF)
Intended RFC status Informational
Expired & archived
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Stream WG state WG Document
Document shepherd No shepherd assigned
IESG IESG state Expired (IESG: Dead)
Action Holders
Consensus Boilerplate Unknown
Telechat date
Responsible AD David Kessens
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document discusses problems that can occur when dual stack nodes that have IPv6 enabled by default are deployed in IPv4 or mixed IPv4 and IPv6 environments. The problems include application connection delays, poor connectivity, and network insecurity. The purpose of this memo is to raise awareness of these problems so that they can be fixed or worked around, not to try to specify whether IPv6 should be enabled by default or not.


Sebastien Roy (Sebastien.Roy@Eng.Sun.COM)
Alain Durand (
James Paugh (

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