Which VPN connection type is needed for secure communication between on-premises networks and Azure Virtual Desktop?

A Site-to-Site (S2S) VPN is the optimal choice for secure communication between on-premises networks and Azure Virtual Desktop. This type of VPN creates a secure tunnel between an entire on-premises network and the Azure cloud, allowing all the devices within that network to communicate with Azure resources securely. This is particularly important for scenarios where multiple users from an organization need consistent access to cloud services and applications hosted in Azure without the need for individual configurations on each device.

S2S VPNs facilitate the connection between the on-premises VPN device and the Azure VPN gateway, thus enabling secure and reliable access to the Azure resources. This type of connectivity is particularly useful for organizations that have a stable network connection and require a dedicated, continuous connection to manage their Azure Virtual Desktop environment effectively.

In contrast, while a Point-to-Site VPN allows remote users to connect to Azure from various locations, it is not designed for entire networks and is typically used for individual client connections. Azure ExpressRoute provides a private, dedicated connection to Azure but is generally used for large-scale enterprise scenarios where high bandwidth and low latency are critical. Layer 2 VPNs, meanwhile, are less common for such configurations and typically involve more complex setups, making Site-to-Site