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问题:UDP 发送



设备用的是WG1300,连接到AP并拿到DHCP分配的IP地址后,如果设备端主动发送数据包给PC,设备端判断发送正常,但是PC端一直收不到,只要PC端发个udp包给WG1300,PC端立即收到WG1300发来的UDP包,这个是什么问题呢?如果PC端不发UDP数据包,只是Ping WG1300 或 同时WG1300也ping PC,winshark 可以看到ICMP的来回,PC端还是收不到WG1300的UDP包,什么问题?  谢谢!