Installing the Connector in Firewalled Environments
When installing the Connector in an environment protected by firewalls, you need to ensure that the IP ranges and ports are allowed by those firewalls. Here are links to the Microsoft documentation that provides details:
If you need to specify explicitly the IP addresses from which devices can connect to your IoT Hub as part of your security configuration, you can use the IP filter feature. For details, refer to
Use IP filters.