在Node-Red中将IP地址设置为UDP-out节点

Question

我的节点红色流包含一个udp-out节点和我的计算机的ip地址。但是这会不时发生变化，所以我手动需要改变它。如果您想使用msg.ip进行设置，UDP-out节点的工具提示表示将地址留空。

如何使用msg.ip？我还没有找到解决办法。它不会设置报告udp地址。

Answer 1

您在节点的配置对话框中留空，然后在您想要通过节点发送的每条消息上，您需要将msg.ip设置为要发送消息的IP地址。

下面的流程演示：

[{"id":"238e2695.98a252","type":"udp out","z":"59370ac1.51144c","name":"","addr":"","iface":"","port":"","ipv":"udp4","outport":"","base64":false,"multicast":"false","x":547.5,"y":181,"wires":[]},{"id":"2a002216.f8cb3e","type":"inject","z":"59370ac1.51144c","name":"","topic":"","payload":"","payloadType":"date","repeat":"","crontab":"","once":false,"x":141.5,"y":180,"wires":[["6d51ce96.66603"]]},{"id":"6d51ce96.66603","type":"change","z":"59370ac1.51144c","name":"","rules":[{"t":"set","p":"ip","pt":"msg","to":"ip","tot":"flow"},{"t":"set","p":"port","pt":"msg","to":"port","tot":"flow"}],"action":"","property":"","from":"","to":"","reg":false,"x":353.5,"y":180,"wires":[["238e2695.98a252"]]}] 

它假定您从流动其他来源设置flow.ip和flow.port。