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Extended Tokens and Stateless Clients in the Constrained Application Protocol (CoAP)

Document Type Replaced Internet-Draft (core WG)
Author Klaus Hartke
Last updated 2018-12-03 (Latest revision 2018-10-22)
Replaced by RFC 8974
Stream Internet Engineering Task Force (IETF)
Intended RFC status (None)
Expired & archived
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Stream WG state Adopted by a WG
Document shepherd (None)
IESG IESG state Replaced by draft-ietf-core-stateless
Consensus boilerplate Unknown
Telechat date (None)
Responsible AD (None)
Send notices to (None)
This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at:


This document provides considerations for alleviating CoAP clients and intermediaries of maintaining per-request state. Additionally, it introduces a new, optional CoAP protocol extension for extended token lengths. This document updates RFCs 7252 and 8323.


Klaus Hartke

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