Verified75% confidenceSolutionExact time
Tailscale uses a combination of STUN-like protocols to detect public network addresses and UDP hole punching for NAT traversal, employing a strategy of attempting direct connection first and falling back to relay.
5
Sources
75%
Confidence
Long-term
Relevance
7/11/2026
First Seen
Sources
Tailscale：用 WireGuard 轻松搭建安全私有网络
githubGitHub Trending7/10/2026
Related Claims
UnverifiedSTUN（Session Traversal Utilities for NAT）是一种用于帮助NAT后方设备发现自己公网地址的协议83% similarUnverifiedSTUN servers help devices discover their public IP addresses and mapped ports, and are suitable for cone NAT scenarios, but symmetric NAT causes STUN direct connection to fail.78% similarUnverifiedTailscale handles NAT traversal through DERP (Designated Encrypted Relay for Packets) servers, enabling devices on different networks to seamlessly form a unified network.77% similarUnverifiedTailscale first attempts to establish a direct UDP connection (via NAT traversal) and automatically falls back to DERP relay servers when a direct connection fails.76% similar
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