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277	277	The [[MQTT.fx>>url:http://mqttfx.jensd.de/index.php/download]] is a MQTT client tool. We can use this to simulate a MQTT connection to our MQTT broker first to make sure the MQTT broker works. This will also help us understand how it works.
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	279	+(((
279	279	In this test, the MQTT broker and MQTT.fx are installed in the same PC, so the MQTT server address in MQTT.fx should be localhost. Below shows how to connect to the server.
	281	+)))
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281	281	[[image:https://wiki.dragino.com/images/thumb/0/06/MQTT_Forward_4.png/600px-MQTT_Forward_4.png||height="201" width="600"]]
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302	302	In the Dragino Gateway, we use [[mosquitto client>>url:https://mosquitto.org/]] for MQTT connection.
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305		-For Upstream
	307	+(% class="mark" %)**For Upstream**
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307	307	command is [[mosquitto_pub>>url:https://mosquitto.org/man/mosquitto_pub-1.html]]
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315	315	mosquitto_pub
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317	317
318		-For Downstream
	320	+(% class="mark" %)**For Downstream**
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320	320	Use [[mosquitto_sub>>url:https://mosquitto.org/man/mosquitto_sub-1.html]] to subscribe the change on the topic.
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329	329	This chapter are step by step to show to configure the Dragino Menu for MQTT auto connection.
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331		-Go to Dragino Menu ~-~-> MQTT Client
	333	+(((
	334	+Go to (% class="mark" %)**Dragino Menu ~-~-> MQTT Client**
	335	+)))
332	332
333	333	[[image:https://wiki.dragino.com/images/thumb/b/bc/MQTT_Command_8.png/600px-MQTT_Command_8.png||height="249" width="600"]]
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335	335	go to mqtt configure menu
336	336
337		-Select Forward to MQTT server. Notice: This option is removed from the latest firmware, in the latest firmware, if user submit "SAVE & APPLY" in MQTT page, the gateway will use MQTT service.
	341	+(((
	342	+Select **Forward to MQTT server**. (% class="mark" %)**Notice**(%%): This option is removed from the latest firmware, in the latest firmware, if user submit "SAVE & APPLY" in MQTT page, the gateway will use MQTT service.
	343	+)))
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339	339	[[image:https://wiki.dragino.com/images/thumb/1/14/MQTT_Commands_8.png/600px-MQTT_Commands_8.png||height="240" width="600"]]
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346	346	Below screenshot is same as the publish command:
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348		-{{{mosquitto_pub -h 192.168.199.148 -p 1883 -i dragino-1b7060 -t CLIENTID/CHANNEL/data -m DATA
349		-//where the CLIENTID, CHANNEL & DATA are macro. represent for
350		-//CLIENTID: dragino-1b7060
351		-//CHANNEL: Remote ID in Channel settings; here is 78901 or 567456
352		-//DATA: The data stores in /var/iot/channels/
353		-}}}
	354	+(% class="box" %)
	355	+(((
	356	+mosquitto_pub -h 192.168.199.148 -p 1883 -i dragino-1b7060 -t CLIENTID/CHANNEL/data -m DATA
	357	+~/~/where the CLIENTID, CHANNEL & DATA are macro. represent for
	358	+~/~/CLIENTID: dragino-1b7060
	359	+~/~/CHANNEL: Remote ID in Channel settings; here is 78901 or 567456
	360	+~/~/DATA: The data stores in /var/iot/channels/
	361	+)))
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355	355	[[image:https://wiki.dragino.com/images/thumb/c/c7/MQTT_Command_9.png/600px-MQTT_Command_9.png||height="385" width="600"]]
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