With Virtual Network encryption, customers can enable encryption of traffic between Virtual Machines and Virtual Machines Scale Sets within the same virtual network and between regionally and globally peered virtual networks. This new feature enhances the existing encryption in transit capabilities in Azure.
Azure Virtual Network encryption is available in the following regions during public preview: East US 2 EUAP, Central US EUAP, West Central US, East US, East US 2, West US, West US 2.
Sign up to obtain access to the public preview here.