Azure Firewall allows us total control over our traffic. Besides controlling inbound traffic, with Azure Firewall, we can control outbound traffic as well.
Creating a new Azure Firewall
Getting ready
Before we can create an Azure Firewall instance, we must prepare the subnet.
In order to create a new subnet for Azure Firewall, we must do the following:
- Locate a virtual network that will be associated with Azure Firewall.
- Select the Subnets option under settings and select the option to add new subnet, as shown in the following screenshot:
![](https://static.packt-cdn.com/products/9781789800227/graphics/assets/0471e75d-c0e5-40fd-a4b0-08fd903c7926.png)
- In the new blade, we must provide the name and address range. It's very important that the subnet is named AzureFirewallSubnet:
![](https://static.packt-cdn.com/products/9781789800227/graphics/assets/081a642c-3d71-474c-87b5-ae5ef7f9957a.png)