:1998
(TCP)
Low 风险
Cisco X.25
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TCP — System & Infrastructure
端口概览
端口号
1998
服务名称
Cisco X.25
传输协议
TCP
类别
System & Infrastructure
安全风险
Low
端口范围
已注册 (1024-49151)
什么是端口 1998?
Port 1998 is used by Cisco for X.25 service access in IOS-based routers. X.25 is a legacy packet-switched WAN protocol that was widely used before Frame Relay and modern broadband. This port appears in legacy Cisco router configurations that still support X.25 connectivity.
TCP
System & Infrastructure
安全注意事项
端口1998（Cisco X.25）被归类为低风险。该服务使用加密或攻击面极小，相对安全可以暴露。
建议：应用标准安全实践。保持软件更新并监控访问。