Using Multicast DNS to protect privacy when exposing ICE candidates

Document Type Expired Internet-Draft (individual)
Last updated 2020-04-18 (latest revision 2019-10-16)
Replaces draft-mdns-ice-candidates
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


WebRTC applications collect ICE candidates as part of the process of creating peer-to-peer connections. To maximize the probability of a direct peer-to-peer connection, client private IP addresses are included in this candidate collection. However, disclosure of these addresses has privacy implications. This document describes a way to share local IP addresses with other clients while preserving client privacy. This is achieved by concealing IP addresses with dynamically generated Multicast DNS (mDNS) names.


Youenn Fablet (
Jeroen Borst (
Justin Uberti (
Qingsi Wang (

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