Unverified50% confidenceTradeoffExact time
对称型 NAT 场景下必须依赖 TURN 服务器作为数据中继，TURN 运营成本远高于信令服务器
1
Sources
50%
Confidence
Long-term
Relevance
7/19/2026
First Seen
Sources
Related Claims
UnverifiedTURN server operating costs are far higher than those of signaling servers; Twilio and Xirsys treat hosted TURN services as their core business model, while Cloudflare integrates TURN relay into its edge network.68% 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66% similarUnverifiedReverse tunneling technology allows intranet nodes to actively establish persistent connections to public internet servers, and is a classic solution to the NAT traversal problem.64% similarUnverified运营一台可靠的TURN服务器需要消耗相当可观的带宽资源，是许多开源项目跨网络场景稳定性参差不齐的根本原因63% similar
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