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Zorluk: OrtaConfigure Azure Firewall

You plan to deploy an Azure Firewall to secure outbound traffic from a subnet named Subnet-App in a virtual network named VNet-Prod. You need to configure the networking environment to allow the firewall deployment and force all outbound internet traffic from Subnet-App through the firewall. Which of the following configuration actions must you perform? (Select TWO.)

  1. Create a dedicated subnet named AzureFirewallSubnet in VNet-Prod with an address prefix of at least /26.Cevap
  2. Create a route table associated with Subnet-App and add a route for 0.0.0.0/0 with the next hop type set to Virtual appliance pointing to the firewall's private IP address.Cevap
  3. C
    Create a route table associated with Subnet-App and add a route for 0.0.0.0/0 with the next hop type set to Virtual network gateway pointing to the firewall's private IP address.
  4. D
    Configure virtual network peering between VNet-Prod and a hub network containing the firewall, enabling gateway transit to automatically route internet traffic.

Cevap

Deploy the firewall in a dedicated subnet named AzureFirewallSubnet with a prefix of /26 or larger, and route the traffic from the application subnet using a User-Defined Route (UDR) with the next hop type set to Virtual appliance pointing to the firewall's private IP address.
Deploying Azure Firewall successfully requires a dedicated subnet named AzureFirewallSubnet with a prefix of at least /26. To direct the traffic from the workload subnet to the firewall, you must define a custom route for 0.0.0.0/0 within a route table, using the 'Virtual appliance' next hop type pointing to the firewall's private IP, and associate this route table with the workload subnet.

Adım Adım Çözüm

1
Configure the Azure Firewall Subnet
Created a subnet named AzureFirewallSubnet in VNet-Prod using an address range of at least /26 (e.g., 10.0.1.0/26).
Azure Firewall demands a specific subnet name and size to allocate internal IPs and allow automatic horizontal scaling.
2
Create and Associate the Route Table
Created a route table and associated it with the application subnet (Subnet-App).
This establishes a control point for managing traffic routing out of the application subnet.
3
Configure the Default Route pointing to Azure Firewall
Added a route for 0.0.0.0/0 with the next hop type set to Virtual appliance and the next hop IP address set to the firewall's private IP.
This overrides the default Azure system route for internet traffic, directing all outbound traffic to the firewall for inspection.

Anahtar Kavram

Azure Firewall deployment subnet prerequisites and user-defined routing configurations
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