:646
(TCP/UDP)
Medium 风险
LDP
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TCP/UDP — Other
端口概览
端口号
646
服务名称
LDP
传输协议
TCP/UDP
类别
Other
安全风险
Medium
端口范围
知名端口 (0-1023)
什么是端口 646?
Label Distribution Protocol (LDP), defined in RFC 5036, used in MPLS networks to distribute label bindings between Label Switching Routers. Fundamental to MPLS traffic engineering and VPN services.
TCP/UDP
Other
常用
安全注意事项
端口646（LDP）被归类为中等风险。虽然此服务通常会暴露，但请在可用时考虑使用加密替代方案。
建议：保持服务更新。监控日志以发现异常活动。