Unverified50% confidenceFactExact time
Port forwarding is a static mapping rule established on a NAT router that forwards external port traffic to an intranet host by modifying the destination address of packets (DNAT).
1
Sources
50%
Confidence
Long-term
Relevance
8/7/2026
First Seen
Sources
端口转发下Authentik安全性解析：自托管服务防护指南
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72% 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.69% similarUnverified对称型NAT对每个目标地址使用不同端口映射，UDP打洞成功率极低，几乎必须依赖中继69% similar
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