Question 233 - AZ-700 discussion

To ensure that all traffic to the internet from subnet3-1 is forwarded to the appliance in subnet3-2 for packet inspection, you can useUser-Defined Routes (UDRs)to direct the traffic. Here's how you can do it:

Step-by-Step Solution

Step 1: Create a Route Table

Navigate to the Azure Portal.

Search for ''Route tables''and select it.

Click on ''Create''.

Enter the following details:

Subscription: Select your subscription.

Resource Group: Select an existing resource group or create a new one.

Name: Enter a name for the route table (e.g.,RouteTable-Subnet3-1).

Region: Select the region where your virtual network is located.

Click on ''Review + create''and then''Create''.

Step 2: Add a Route to the Route Table

Navigate to the newly created route table.

Select ''Routes''from the left-hand menu.

Click on ''Add''to create a new route.

Enter the following details:

Route name: Enter a name for the route (e.g.,RouteToAppliance).

Address prefix: Enter0.0.0.0/0to route all internet traffic.

Next hop type: SelectVirtual appliance.

Next hop address: Enter the IP address of the appliance (10.3.2.100).

Click on ''OK''to add the route.

Step 3: Associate the Route Table with Subnet3-1

Navigate to the route table.

Select ''Subnets''from the left-hand menu.

Click on ''Associate''.

Select the virtual networkthat contains subnet3-1.

Select subnet3-1from the list of subnets.

Click on ''OK''.

Explanation:

User-Defined Routes (UDRs): These allow you to control the routing of traffic within your virtual network.By defining a route that directs all internet-bound traffic to the appliance, you ensure that the traffic is inspected before it reaches the internet1.

Virtual Appliance: This is a network appliance that performs specific functions, such as packet inspection, and is treated as a next hop in the routing table2.

Route Table Association: Associating the route table with subnet3-1 ensures that all traffic from this subnet follows the defined routes.

By following these steps, you can ensure that all internet-bound traffic from subnet3-1 is forwarded to the appliance in subnet3-2 for inspection, thereby enhancing your network security.