Question

Difficulty: EasyConfigure User-Defined Routes and Routing Tables

You have an Azure virtual network named `VNet1` that contains three subnets named `Subnet-Public` (10.0.1.0/2410.0.1.0/24), `Subnet-Secure` (10.0.2.0/2410.0.2.0/24), and `Subnet-DMZ` (10.0.3.0/2410.0.3.0/24). A Network Virtual Appliance (NVA) is deployed in `Subnet-DMZ` and is assigned the private IP address 10.0.3.410.0.3.4. You need to create a user-defined route in a route table associated with `Subnet-Secure` to direct all outbound internet traffic from `Subnet-Secure` through the NVA. Which next hop type and next hop IP address should you configure in the route table to meet this requirement?

  1. Next hop type: Virtual appliance; Next hop IP address: 10.0.3.410.0.3.4Answer
  2. B
    Next hop type: Virtual network gateway; Next hop IP address: 10.0.3.410.0.3.4
  3. C
    Next hop type: Virtual appliance; Next hop IP address: 10.0.2.410.0.2.4
  4. D
    Next hop type: Virtual network; Next hop IP address: 10.0.3.410.0.3.4

Answer

Next hop type: Virtual appliance; Next hop IP address: 10.0.3.410.0.3.4
To route traffic to an NVA, you must configure a route with the next hop type of 'Virtual appliance' and the next hop IP address set to the NVA's private IP (10.0.3.410.0.3.4).

Step-by-Step Solution

1
Determine the routing target and destination.
The destination is the internet (0.0.0.0/00.0.0.0/0), and the traffic must be directed to a Network Virtual Appliance (NVA) at 10.0.3.410.0.3.4.
Identifying the flow destination and gateway IP is necessary for constructing the user-defined route.
2
Identify the correct Next Hop Type for an NVA.
The Next Hop Type must be set to 'Virtual appliance'.
Azure routing uses 'Virtual appliance' to identify virtual machines or firewalls configured to route traffic.
3
Select the correct Next Hop IP address.
The Next Hop IP address must be the private IP address of the NVA interface in Subnet-DMZ (10.0.3.410.0.3.4).
The next hop IP must be a reachable address on a local subnet within the VNet.

Key Concept

Azure User-Defined Routes Next Hop Types
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