:521
(UDP)
High 风险
RIPng
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UDP — System & Infrastructure
端口概览
端口号
521
服务名称
RIPng
传输协议
UDP
类别
System & Infrastructure
安全风险
High
端口范围
知名端口 (0-1023)
什么是端口 521?
Port 521 is assigned to RIPng, the IPv6 adaptation of RIP defined in RFC 2080. Should be restricted to trusted network segments.
UDP
System & Infrastructure
安全注意事项
端口521（RIPng）被归类为高风险。此端口是自动扫描和暴力破解攻击的常见目标。如必须暴露，请将访问限制为已知IP地址。
建议：使用防火墙规则将可信IP列入白名单。启用速率限制和入侵检测。