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Ports used with Device Update for IoT Hub

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Device Update for IoT Hub uses a variety of network ports for different purposes.

Default Ports

Purpose Port Number
Download from networks/CDNs 80 (HTTP protocol)
Download from MCC/CDNs 80 (HTTP protocol)
Device Update agent connection to IoT Hub 8883 (MQTT protocol)

Use IoT Hub supported protocols

The Device Update agent can be modified to use any of the supported Azure IoT Hub protocols.

For more information, see Choose a device communication protocol.