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Session Traversal Utilities for NAT (STUN) Usage for Consent Freshness (RFC7675) Disclosure Number: IPCOM000245027D
Original Publication Date: 2015-Oct-01
Included in the Prior Art Database: 2016-Feb-06
Document File: 20 page(s) / 22K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

M. Perumal: AUTHOR [+4]


To prevent attacks on peers, endpoints have to ensure the remote peer is willing to receive traffic. Verification of peer consent before sending traffic is necessary in deployments like WebRTC to ensure that a malicious JavaScript cannot use the browser as a platform for launching attacks. This is performed both when the session is first established to the remote peer using Interactive Connectivity Establishment (ICE) [RFC5245] connectivity checks, and periodically for the duration of the session using the procedures defined in this document.

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Internet Engineering Task Force (IETF)                        M. Perumal Request for Comments: 7675                                      Ericsson Category: Standards Track                                        D. Wing ISSN: 2070-1721                                      Cisco Systems, Inc.                                                          R. Ravindranath                                                                 T. Reddy                                                            Cisco Systems                                                               M. Thomson                                                                  Mozilla                                                             October 2015

  Session Traversal Utilities for NAT (STUN) Usage for Consent Freshness


   To prevent WebRTC applications, such as browsers, from launching    attacks by sending traffic to unwilling victims, periodic consent to    send needs to be obtained from remote endpoints.

   This document describes a consent mechanism using a new Session    Traversal Utilities for NAT (STUN) usage.

Status of This Memo

   This is an Internet Standards Track document.

   This document is a product of the Internet Engineering Task Force    (IETF).  It represents the consensus of the IETF community.  It has    received public review and has been approved for publication by the    Internet Engineering Steering Group (IESG).  Further information on    Internet Standards is available in Section 2 of RFC 5741.

   Information about the current status of this document, any errata,    and how to provide feedback on it may be obtained at

Perumal, et al.              Standards Track                    [Page 1]
 RFC 7675            STUN Usage for Consent Freshness        October 2015

 Copyright Notice

   Copyright (c) 2015 IETF Trust and the persons identified as the    document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal    Provisions Relating to IETF Documents    ( in effect on the date of    publication of this document.  Please review these documents    carefully, as they describe your rights and restrictions with respect    to this document.  Code Components extracted from this document must    include Simplif...