The OpenConnect VPN Protocol Version 1.1

Document Type Expired Internet-Draft (individual)
Last updated 2019-04-17 (latest revision 2018-10-14)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document specifies version 1.1 of the OpenConnect Virtual Private Network (VPN) protocol, a secure VPN protocol that provides communications privacy over the Internet. That protocol is believed to be compatible with CISCO's AnyConnect VPN protocol. The protocol allows the establishment of VPN tunnels in a way that is designed to prevent eavesdropping, tampering, or message forgery.


Nikos Mavrogiannopoulos (

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