can install on Windows operating systems as well as Linux systems can be installed easily. GNS3 network simulator program
How to Install GNS3 on Ubuntu 17.04 / 17.10 / 18.04 / 18.10 / 19.04 / 19.10
With GNS3 (Graphical Network Simulator 3), you can create more specific network topologies and run and use these devices virtually on your computer with GNS3 without the need to purchase network products such as Cisco Router and Switch.
We have already installed GNS3 network simulator on the Windows operating system. When installing GNS3 on Windows platform, we proceed with graphical steps.
On the Ubuntu operating system, applications are usually installed using the terminal. On Linux systems, you must add the repo addresses of a program. And hence, setting up a program can sometimes take time and be complicated.
GNS3 is more specific than
, so users prefer this simulator. Cisco Packet Tracer
For more information about the router simulator program, we recommend that you check out
. what is GNS3
GNS3 is a network simulator program that is constantly updated, and the latest version is
2.1.21. In our previous articles, we installed GNS3 on other Linux systems and Windows 10. You can access our GNS3 installation articles from the links below;
How to Configure and Run GNS3
Follow the steps below to install GNS3 step by step on your Linux computer.
Open the Terminal by pressing
Ctrl + Alt + T on the Ubuntu desktop. To add GNS3 to the Repository, type the following command in the Terminal and press Enter.
sudo add-apt-repository ppa:gns3/ppa
Enter to continue the GNS3 installation.
To update the Ubuntu package list, type
sudo apt-get update, and press Enter.
sudo apt-get update
To start the installation, execute
sudo apt-get install gns3-gui.
sudo apt-get install gns3-gui
Y to confirm the installation of the dependent packages, and then press Enter.
Enter on Yes to allow non-superusers to use Ubridge.
Yes if you want to allow non-superusers to capture packages using on GNS3. Wireshark
After the installation is complete, close the Terminal and type
GNS3 in the search box to find and run the program.
You can check the version of GNS3 in
Help / About.
How to Add and Use Cisco Router/Switch IOS Image on Ubuntu
After installing GNS3, follow the steps below to add a new Router/Switch IOS image.
After running GNS3, the first opening of the program is as follows. In the
Setup Wizard window, select Local Server.
After selecting the Local Server, click
Select the option in the image below to add the
. Cisco Router IOS image
In the IOS images window, click the
Browse button to add the Router image.
In the window that opens, select an IOS image that you downloaded to your computer and click the
Yes to copy the router IOS image to the default location.
After adding the IOS image, click
Select the Cisco Router platform and click
In this window, you can configure how much RAM the Cisco Router uses. Continue by clicking
Next to accept the default 512 MB RAM.
In the Network Adapters section, you can add interfaces for the Router. Select the FastEthernet interface configured by default and click
You must set the IDLE-PC value so that it does not affect the performance of your computer while the Cisco Router is running. Click the
Idle-PC Finder button to set the optimal value.
Calculating Idle-PC value for router image …
Once the optimal Idle-PC value found for the router, click
Finish to continue adding iOS.
The IOS Router Templates window provides information about the Router image you added. To close this window, just click
In the Create a new project window, click the
OK button after configuring the project name and location.
After successfully adding your Cisco IOS image, drag and drop the c7200 Router from the left to the workspace.
After running the router, you can see the IOS image version from the image below.
How to Use GNS3 ⇒ Video
You can watch the video below to install the GNS3 software and also subscribe to our
channel to support us! YouTube
In this article, we have examined step by step how to install GNS3 on Linux / Ubuntu. And finally, we have added a Cisco IOS image to use Cisco Router or Switch on Ubuntu. Thanks for following us!
♦ How to Install GNS3 in Mac
♦ RIP Configuration
♦ RIP Version 2 Configuration
♦ EIGRP Configuration
♦ OSPF Configuration