Query About Ignition Azure injector -Azure IOT central connection

Hello Team,
We are trying to connect Ignition with Azure IOT central with Azure Injector. Currently we are facing issue with Connection.
I have query, Can any one tell me Internet connection required for Ignition & Azure Connection. As per client policy, client not allowed Internet.

Please assist on this.

Thanks ,
Dhiraj Pawar

Isn't that a cloud service? If so, how could you possibly connect without the internet?