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IPFYI
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3478

STUN / TURN

Low Risk

TCP/UDP — Streaming & Media

Port Overview

Port Number 3478
Service Name STUN / TURN
Transport Protocol TCP/UDP
Category Streaming & Media
Security Risk Low
Port Range Registered (1024-49151)

What is Port 3478?

Port 3478 is the standard port for STUN (Session Traversal Utilities for NAT) and TURN (Traversal Using Relays around NAT) protocols, critical for WebRTC and VoIP applications. These protocols help peers discover their public IP addresses and traverse NAT/firewall boundaries for real-time communications. It is widely used in video conferencing, online gaming, and peer-to-peer applications.

TCP/UDP Streaming & Media Commonly Used

Security Considerations

Port 3478 (STUN / TURN) is classified as low risk. This service uses encryption or has a minimal attack surface, making it relatively safe to expose.

Recommendation: Standard security practices apply. Keep software updated and monitor access.

Related Ports — Streaming & Media

545 appleqtcsrvr 554 RTSP 1720 H.323 1755 Windows Media Server 1935 RTMP 2000 Cisco SCCP 2427 MGCP Gateway 3689 DAAP (iTunes Music Sharing)
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