Port 3478 — stun

Session Traversal Utilities for NAT (STUN) port

Transport protocols: tcp, udp

Registered Services

• stun / tcp — Session Traversal Utilities for NAT (STUN) port (RFC8489)
• stun / udp — Session Traversal Utilities for NAT (STUN) port (RFC8489)
• turn / tcp — TURN over TCP (RFC8656)
• turn / udp — TURN over UDP (RFC8656)
• stun-behavior / tcp — STUN Behavior Discovery over TCP (RFC5780)
• stun-behavior / udp — STUN Behavior Discovery over UDP (RFC5780)

Assignment from the IANA Service Name and Transport Protocol Port Number Registry.