1. Introduction

WebRTC is a protocol suite aimed at real-time multimedia exchange between browsers, and between browsers and other entities.

WebRTC is described in the WebRTC overview document [RFC8825], which also defines terminology used in this document, including the terms "WebRTC endpoint" and "WebRTC browser".

Terminology for RTP sources is taken from [RFC7656].

This document focuses on the data transport protocols that are used by conforming implementations, including the protocols used for interaction with intermediate boxes such as firewalls, relays, and NAT boxes.

This protocol suite is intended to satisfy the security considerations described in the WebRTC security documents, [RFC8826] and [RFC8827].

This document describes requirements that apply to all WebRTC endpoints. When there are requirements that apply only to WebRTC browsers, this is called out explicitly.

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