RFC 8155 · PROPOSED STANDARD · 2017

Traversal Using Relays around NAT Server Auto Discovery

Overview

RFC 8155, “Traversal Using Relays around NAT Server Auto Discovery”, is a Proposed Standard document published in April 2017 by P. Patil, T. Reddy, D. Wing. It updates RFC 5766. The canonical text is published by the RFC Editor.

Abstract

Current Traversal Using Relays around NAT (TURN) server discovery mechanisms are relatively static and limited to explicit configuration. These are usually under the administrative control of the application or TURN service provider, and not the enterprise, ISP, or the network in which the client is located. Enterprises and ISPs wishing to provide their own TURN servers need auto-discovery mechanisms that a TURN client could use with minimal or no configuration. This document describes three such mechanisms for TURN server discovery.

This document updates RFC 5766 to relax the requirement for mutual authentication in certain cases.

Abstract as published in the RFC, via rfc-editor.org.

What “Proposed Standard” means

An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.

Read this RFC

The canonical text of RFC 8155 is hosted at rfc-editor.org. Available in TXT,HTML.

Relationships to other RFCs
This RFC updates
RFC 5766
Other RFCs from 2017

Who Is Online

In total there are 27 users online: 0 registered, 20 guests and 7 bots.

Most users ever online was 1,226 on 13 Jun 2026, 3:56 am.

Bots: AhrefsBot Applebot Bingbot Googlebot Other Bot SemrushBot Sogou

Users active in the past 15 minutes. Total registered members: 354