:4789
(UDP)
VXLAN
Medium 风险UDP — System & Infrastructure
On this page
端口概览
端口号
4789
服务名称
VXLAN
传输协议
UDP
类别
System & Infrastructure
安全风险
Medium
端口范围
已注册 (1024-49151)
什么是端口 4789?
Port 4789 is the standard IANA-assigned port for VXLAN (Virtual Extensible LAN), a network virtualization protocol used extensively in cloud computing and software-defined networking. VXLAN encapsulates Layer 2 Ethernet frames within UDP packets to extend virtual networks across Layer 3 boundaries. It is heavily used by Docker, Kubernetes, and OpenStack for container and VM networking.
UDP
System & Infrastructure
常用
安全注意事项
端口4789(VXLAN)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。