Question 1

What Is NAT Traversal?

Accepted Answer

NAT traversal is a technique to establish network communication between devices behind NATs, overcoming the barriers that NAT introduces for direct connections.

Question 2

What Is a TURN Server?

Accepted Answer

A TURN server is a relay server used in WebRTC to facilitate communication between clients when direct peer-to-peer connections are blocked by NAT or firewall restrictions.

Question 3

How Do I Configure a TURN Server?

Accepted Answer

To configure a TURN server, install the server software, set up basic configuration settings such as listening ports and authentication, and optimize performance through load balancing and network settings.

Question 4

How Does ICE Work with TURN Servers?

Accepted Answer

ICE (Interactive Connectivity Establishment) combines multiple NAT traversal techniques, including STUN and TURN. It gathers connection candidates and uses TURN servers as a fallback when direct connections fail.

Question 5

What Is the Role of STUN in NAT Traversal?

Accepted Answer

STUN (Session Traversal Utilities for NAT) helps clients discover their public IP addresses and NAT type, but it may not be sufficient alone for establishing connections, especially behind restrictive NATs.

WebRTC NAT Traversal

Configuring and Optimizing TURN Servers for WebRTC NAT Traversal