Windows 下使用 nmap ncat 命令测试 UDP 端口连接_allway2的博客-CSDN博客_windows如何测试udp端口
下载windows版nmap
cd C:\Program Files (x86)\Nmap
使用 ncat 命令测试 UDP 端口连接
使用 ncat 命令测试 UDP 端口连通性的语法如下：
ncat -z -v -u [主机名/IP 地址] [端口号]
成功连接示例：
C:\Program Files (x86)\Nmap>ncat -z -v -u ntp.aliyun.com 123
Ncat: Version 7.80 ( https://nmap.org/ncat )
Ncat: Connected to 203.107.6.88:123.
Ncat: UDP packet sent successfully
Ncat: 1 bytes sent, 0 bytes received in 2.11 seconds.
C:\Program Files (x86)\Nmap>ncat -z -v -u localhost 161
Ncat: Version 7.80 ( https://nmap.org/ncat )
Ncat: Connected to ::1:161.
Ncat: UDP packet sent successfully
Ncat: 1 bytes sent, 0 bytes received in 2.11 seconds.
C:\Program Files (x86)\Nmap>ncat -z -v -u localhost 162
Ncat: Version 7.80 ( https://nmap.org/ncat )
Ncat: Connected to ::1:162.
Ncat: 远程主机强迫关闭了一个现有的连接。 .
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原文链接：https://blog.csdn.net/allway2/article/details/120159222