Microsoft Azure Sphere Operating System currently supports two kinds of network connectivity: Ethernet and Wi-Fi. For customers that require connectivity to the Internet via cellular networks, one option is to use external hardware to route the Ethernet or Wi-Fi to the cellular network. This router-based architecture results in some implications that customers should be aware of. This paper discusses the cellular connectivity options immediately available for customers using Azure Sphere, addresses the security-critical functions that can only be performed through Azure Sphere OS-supported network connections, and identifies the limitations on security-related functions and guarantees that Azure Sphere offers when customers use a cellular-router-based system.
Cellular connectivity options immediately available to users of Azure Sphere
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