Azure Virtual Network

• Virtual networks (VNets) allow virtual machines (VMs) and other Azure resources to communicate securely with each other, the internet, and on-premises networks. VNets can also be connected to other VNets if their address ranges don't overlap.

• Subnets allow you to segment the VNet address space into subnetworks for organization purposes. Azure deploys resources to subnets within a virtual network, so you need to create a subnet.

• Azure CLI: az network vnet create

Azure CLI

# create shell variables
vnetName=VN_Lab
subnetName=VN_Lab_Subnet1
vnetAddressPrefix=10.0.0.0/16
subnetAddressPrefix=10.0.0.0/24

az network vnet create --name $vnetName --resource-group $resourceGroup --address-prefixes $vnetAddressPrefix --subnet-name $subnetName --subnet-prefixes $subnetAddressPrefix