Swatting NATs with TURN and WebRTC 

Chad Hart of webrtcHacks provides a review of NAT traversal in WebRTC. TURN servers are a required element in real WebRTC deployments to help make connections between peers when firewall and NAT’s configurations prevent direct peer-to-peer flows. Chad describes the firewall and NAT traversal problem, how TURN servers work, TURN usage statistics, and best practices for using or deploying TURN Servers..

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