Unverified50% confidenceFactExact time

TUN 工作在三层（IP层）处理IP数据包，TAP 工作在二层（以太网帧层）能传递以太网广播帧

1

Sources

50%

Confidence

Long-term

Relevance

7/13/2026

First Seen

Sources

Lanemu 0.14: An Open-Source Hamachi Alternative for Free, Unlimited P2P Virtual LANs

redditr/opensource7/11/2026

Related Claims

Unverified绿联、群晖、威联通等主流NAS厂商的云服务架构通常分为STUN/TURN服务器、厂商中继服务器和动态DNS服务三层65% similar UnverifiedTraditional firewalls operate at layer 3 (the network layer) and layer 4 (the transport layer) of the OSI model and can only filter based on IP addresses and port numbers.62% similar

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