GNS3 stands for Graphical Network Simulator. GNS3 is one of the famous Network simulator and it is used for CCNA, CCNP and CCIE preparation. GNS3 is much helpful in Routing Switching, Security, Service Provider and Data Center Exam lab’s.
GNS3 is an open source network simulator, which supports Cisco IOS and IOU. Now, GNS3 version 2.x is support various different vendor’s devices like EXOS, Juniper and much more. With the help of VMware, we can easily use any other firewalls like (ASA, Palo Alto, Juniper and Checkpoint) using various virtual interfaces support.
Installation Process of GNS3 on Linux (Ubuntu/Mint)
In order to install GNS3 in your Linux machine, you should follow following steps :
- First, open your terminal : For GNS3 installation, you have to open your terminal. Either you can search Terminal in installed programs or you can press Alt+Ctrl+T shortcut key.
- Now, type following commands to install GNS3 GUI (Graphical User Interface) and GNS3 Server :
sudo add-apt-repository ppa:gns3/ppa
sudo apt-get update
sudo apt-get install gns3-gui
If you want some additional support of GNS3 IOU, you need to run additional commands as given below:
sudo dpkg –add-architecture i386
sudo apt-get update
sudo apt-get install gns3-iou
Do you Really Need a GNS3 VM on Linux Machine ?
If you are using GNS3 Network Simulator in you Linux machine, you do not need to install and configure additionally Virtual Machine for GNS3. But you can ! The main purpose of GNS3 VM is to give Unix Based IOU support to Microsoft Windows. But, in Linux, by default you have full support of IOU (IOS on UNIX). So, you can continue your installation process with above instruction.
But, If you are installing GNS3 in Windows, I recommends you should go for GNS3 VM. Because, with the help of GNS3 VM, you can improve overall performance of the system. Also, with the help of GNS3 VM you can run more number of IOS (Routers) and IOU (Premium Switches) in comparison of without GNS3 Virtual Machine Installation.
You can also Read : GNS3 Quick Overview – Step by Step Guide to IOS and IOU Installation
In this article, we discuss how we can configure GNS3 in Linux (Ubuntu / Mint) operating system. We also focus on some Pros and Cons of GNS3 Virtual Machine.