How to deploy FortiGate Virtual Firewall in GNS3

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In this article, we will deploy the FortiGate Next-Generation Virtual Firewall directly in GNS3. In the previous article, we deploy the FortiGate Firewall in VMWare Workstation. As you already know that the GNS3 Network Simulator allows you to directly run KVM machines. So, we will download the FortiGate KVM Image from the support portal and deploy it in GNS3. So, let’s get started.


How to deploy the FortiGate Firewall in GNS3

As we already discussed, we need to download the FortiGate KVM Firewall from the support portal. KVM stands for (Kernel-Based Virtualization Machine). KVM allows you to run .qcow file format directly on it. You need to follow the following steps to deploy the FortiGate KVM on GNS3:

Step 1: Download the FortiGate KVM Virtual Firewall from the Support Portal

First of all, you need to download the FortiGate KVM Firewall from the FortiGate support portal. Visit the support portal by clicking here. Now, navigate to Download > VM Images > Select Product: FortiGate > Select Platform: KVM. In this example, I am downloading the FortiGate version 6.0.9. Now, just click on Download Button.

Note: Make sure that Download the KVM for New deployment of FortiGate.

You can refer to the below image for downloading the FortiGate KVM.


Image Source: Fortinet

After downloading the .zip file of FortiGate KVM Firewall, you need to extract that file to a folder. After extracting, you will get a .qcow2 FortiGate KVM Firewall file as shown below:


Step 2: Download the GNS3 on your machine

I hope you already aware or you already install the GNS3 in your machine. If not, you can refer the following links to understand & download the GNS3 Network Simulator for Windows or Linux machine. Basically, GNS3 is a Great Network Simulator tool on which you can run many Network & Network Security appliances.

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Step 3: Deploying the FortiGate VM Image in GNS3

Now, we are ready to deploy the FortiGate KVM Image in the GNS3 simulator. Currently, I’m using GNS3 2.1.21, although, the KVM deployment is the same on other GNS3 versions too. Open the GNS3 and, Navigate to Edit >> Preferences >> QEMU >> Qemu VMs and click on New. Now, give the friendly name to this VM, i.e. FortiGate_VM and click on Next.


Now, give the RAM to the FortiGate  VM Firewall. In this example, I’ve given 1024 MB RAM to the VM Image and Click on Next.

Note: The Default 15 Days Licenced VM supports only 1 CPU Core & 1024 MB of RAM.


Now, you need to select the Console Type. In KVM we can get the Firewall CLI just by double-clicking. So, here, I’m selecting telnet. However, if you have a vnc application installed on your machine, you can select the vnc and click on Next.


Now, In the last step, you need to select the image file you downloaded in Step 1. It will prompt to copy that file in the GNS3 default directory, so you can copy it on the gns3 default directory, it’s recommended. Now, click on Finish.


Now, before applying your changes, you need to change the Interfaces of the VM Firewall. In this example, I am using 8 different Interfaces on the VM Firewall. However, you can change it according to your requirements. To change it, navigate to Edit >> Network (you can refer to the given image). Optionally, you can select a FortiNet icon, for this VM Image. I’ve one .svg file fo the Fortinet, so I am choosing the same here.

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Once, you applied you the changes, you will find that a new FortiGate Firewall is ready along with your already installed appliances. Just drop down the firewall in the Project area. Right-click on this and choose the start option. Once, you start the VM, you will get the console of the Firewall, which is in the booting process.


Step 4: Configuring the Interface of FortiGate KVM (Virtual Firewall) for Management

In the previous step, we successfully step the FortiGate VM in the GNS3. Now, we need to double click the VM appliance we just deployed. You will find that the Virtual FortiGate Firewall booting process is going on. Once the FortiGate VM Firewall finished the booting, you need to give the default credentials to the VM.

Note: The default username is admin and password is [blank].

Now, we need to configure the one of the Interface so that you can access the GUI of the FortiGate VM. However, in the FortiGate VM Firewall, you didn’t have any dedicated Management Port. So, in this example, I’ll configure the ethernet1/1 port. You need to follow the following commands to configure the IP address on the ethernet1  port. We also need to provide the specific services along with the IP address on the Interface, so that we can access the GUI (Graphical User Interface) of the firewall.

To assign the IP address & services, you have to follow given commands:

config system interface
edit port1
set mode static
set ip
set allowaccess https http ping ssh

The snapshot of the whole configuration is given below:


If you need to change the Hostname of the FortiGate KVM Firewall, you can follow the following commands:

config system global
set hostname GSN3-FortiGate

Hey! Now, you are ready to get the GUI of the Firewall. So, just follow the next step to get the GUI of FortiGate.

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Step 5: Accessing the FortiGate KVM Firewall from the End Machine

In the previous step, we have done all configuration which is used to get access to the FortiGate VM. In this example, I’ve windows 7, connected like below image:


I need to provide the statically IP address in the same network on Windows 7. In our FortiGate KVM Firewall, ethernet1 is configured with, so I’ll configure the IP address on the Windows7. So, my windows 7 IP configuration looks like this:


Now, test the connectivity with the FortiGate KVM. Let’s initiate the ping to the FortiGate VM IP address, i.e.


Now, Let’s open your favorite web browser and access the FortiGate KVM using If everything is perfect, you will get the GUI of the Firewall. The Fresh KVM Deskboard is looking like below image:




That’s it! We have successfully deployed the FortiGate KVM in the GNS3 Network Simulator.

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In this article, we configured the FortiGate Virtual Firewall directly on GNS3 Network Simulator. First, we download the FortiGate KVM Virtual Firewall from the Fortinet support portal. Then, we successfully imported the FortiGate Firewall on GNS3 Simulator. We configured 8 different Interfaces for different purposes on FortiGate KVM. However, you can install many more Network Interfaces. The FortiGate firewall by default comes with 15 days of license with limited features. After 15 days, you must buy it to continue work on the same image. We also configured one of the FortiGate VM Firewall using the CLI to gain the GUI/CLI access of the end machine. Finally, we get the FortiGate VM Firewall GUI on our end machine.

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