Creating and Configuring Virtual Networks
In this section, you are going to learn how to create and configure VNets and the peering of these networks. You will start with an overview of VNets and IP addressing and explore how it works within Azure.
Before you dive into how to configure VNets, take a moment to understand what VNets are and what their purpose is. A VNet in Azure is a representation of your network in the cloud that is used to connect resources such as Virtual Machines (VMs) and other services to each other.
Unlike traditional networks, which make use of physical cables, switches, and routers to connect resources, VNets are completely software-defined. VNets have isolated IP ranges, and resources placed inside a VNet do not talk to the resources in other VNets by default. To allow resources in two different VNets to talk to each other, you would need to connect the VNets using VNet peering.
Note
All resources deployed to a VNet must reside in the same region...