Using IPsec to Secure IPv6-over-IPv4 Tunnels

Document Type Replaced Internet-Draft (individual)
Author Hannes Tschofenig 
Last updated 2005-07-13 (latest revision 2004-12-20)
Replaced by RFC 4891
Stream (None)
Intended RFC status (None)
Expired & archived
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Stream Stream state (No stream defined)
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RFC Editor Note (None)
IESG IESG state Replaced by draft-ietf-v6ops-ipsec-tunnels
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document gives guidance on securing IPv6-in-IPv4 tunnels using IPsec. No additional protocol extensions are described beyond those available with the IPsec framework. This document describes packet formats, IPsec security policy database for various scenarios, address configuration procedures, and the usage of the Extensible Authentication Procotol.


Hannes Tschofenig (

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