DTLS as a Transport Layer for RADIUS

Document Type Replaced Internet-Draft (individual)
Author Alan DeKok 
Last updated 2012-10-30 (latest revision 2010-07-26)
Replaced by RFC 7360
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IESG IESG state Replaced by draft-ietf-radext-dtls
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


The RADIUS protocol [RFC2865] has limited support for authentication and encryption of RADIUS packets. The protocol transports data "in the clear", although some parts of the packets can have "hidden" content. Packets may be replayed verbatim by an attacker, and client-server authentication is based on fixed shared secrets. This document specifies how the Datagram Transport Layer Security (DTLS) protocol may be used as a fix for these problems. It also describes how implementations of this proposal can co-exist with current RADIUS systems.


Alan DeKok (aland@freeradius.org)

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