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====Default ports for specific services====

====Default ports for specific services====

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In the realm of networking, many services are assigned a default port number for communication. These are well-known, reserved TCP/IP ports, which range from 0 to 1023 and are used by specific services, and therre are other well-known ports outside of this range. For instance, the MQTT protocol uses port number 1883 as its default port. When configuring Teltonika devices to use MQTT, the rule to allow traffic on this port is automatically created. However, in case you face an issue with MQTT traffic being dropped, you should check the traffic rules to ensure that the rule which allows traffic on port 1883 exists and is enabled.  

In the realm of networking, many services are assigned a default port number for communication. These are well-known, reserved TCP/IP ports, which range from 0 to 1023 and are used by specific services. There are also other well-known ports outside of this range. For instance, the MQTT protocol uses port number 1883 as its default port. When configuring Teltonika devices to use MQTT, the rule to allow traffic on this port is automatically created. However, in case you face an issue with MQTT traffic being dropped, you should check the traffic rules to ensure that the rule which allows traffic on port 1883 exists and is enabled.  

==Traffic rules configuration examples==

==Traffic rules configuration examples==