This tutorial explains how to install GNS3 for CCNA exam preparation step by step in detail with screenshots. Default installation of GNS3 includes several features and functionality which are neither required nor recommended for CCNA exam preparation. Learn how to perform a customized GNS3 installation for CCNA exam.
Real Cisco devices cost a lot of money which everyone cannot afford for CCNA exam preparation.
Network simulator software provides cost effective solution for exam preparation by simulating necessary devices.
For CCNA exam practice, Packet Tracer and GNS3 are the most widely used network simulator software. In this tutorial, we will learn how to install GNS3 step by step.
To learn how to install and configure Packet Tracer, see this tutorial
Download GNS3 installation file from its official webpage
Double click the installation file to start the installation
Depending on UAC (User access control) setting Windows may ask for confirmation. If it prompts, click yes to confirm the installation. Upon confirmation, installation starts in a wizard.
First screen of wizard shows a welcome message and suggestion to close other applications before starting the installation of GNS3. It’s only a suggestion not a requirement.
You can install GNS3 while other applications are running, but in this case you must have to restart the system before you can use it.
Click Next to start the installation
Next screen show license agreement. Click I Agree to accept the license agreement
Next screen allows us to customize the Start Menu Folder name. By default wizard uses GNS3 as start menu folder name.
If you wish to use something else, change it here. If you wish to keep the default name, no action is required here.
Make you choice and click Next button
Next screen allows us to select the components which we want to install.
By default several components are selected including third party tools.
Third party tools are used to build and test the complex network. These tools are generally not required in
CCNA lab. Furthermore these tools are downloaded and installed during the install which consume a lot of
additional data and time. To make situation worse, any broken link may halt the installation process. For
example version 2.1.4 uses an outdated link of WinPCAP 4.1.3. If we install this version with default
selection, installation process will be failed.
For CCNA lab we only need following components
Uncheck all components excepts these four components and click Next button
Next screen allows us to customize the installation folder location. By default wizard installs GNS3 in Windows partition\\Program Files\\GNS3 folder.
If you want to install GNS3 in other folder, update the folder location.
Keep default or select the appropriate folder location and click Install button to start the installation
Now wizard installs GNS3 with selected components and options
During this phase, if any third party tool is selected, wizard downloads and installs that automatically.
In our example we have selected one third party tool (Npcap) which will be installed now.
Accept the License agreement.
Check “Automatically start the Npcap driver at boot time” option and keep the other options as they are.
Click Install button to start the installation of Npcap
Now wizard installs Npcap with selected options
Next screen shows the result of installation. Click Next to continue
Click Finish button to close the Npcap installation wizard.
Just like Npcap, if any other third party tool is selected, that will be installed in this phase. Once all components and third party tools are installed, Wizard shows a summary screen which displays the log messages of installation process.
Click Next to continue
GNS projected is supported by Solarwinds. It offers its standard toolset freely with GNS3.
We don’t need these tool sets for CCNA lab. Select No and click Next
On last screen, wizard offers an option to start GNS3 just after the installation. By default this option is selected. If we don’t want to run GNS3 just after the installation, we have to uncheck this option.
Click Finish to close the installation wizard.
Configuring GNS3 for CCNA Lab
Start the GNS3 and click Help menu item. From submenu click Setup Wizard
On first run, GNS3 automatically launches this wizard. If you skipped it that time, you can launch it again anytime from this option. It doesn’t make any difference, how you access this wizard, configuration is same in both cases.
First screen of Setup Wizard allows us to choose the type of server which we want to run.
By default “Run modern IOS(IOSv or IOU), ASA and appliances from non Cisco manufactures” option is selected.
For CCNA lab we have to select the second option “Run only legacy IOS on my computer”.
Select second option and click Next button.
In next screen, we have three configuration values; Server path, Host binding and Port.
If you have installed GNS3 in custom location, provide the gns3server.exe file path in first option.
If you have installed it in default location, wizard will automatically select the correct path.
Select loopback IP address 127.0.0.1 from dropdown options.
Use any non-standard port such as 6000
Once all values are configured, click Next button
Now wizard implements all configured values. If any error occurs, next screen displays that error.
If everything is fine, next screen displays the success message. Click Next button to continue.
Final screen of this wizard displays the summary of configuration values. Click Finish button to close the wizard.
Once necessary configurations are applied, GNS3 is ready to use.
By default GNS3 does not contain any Cisco IOS. In order to use any Cisco device such as router and switch, we must have to install
that device’s IOS in GNS3. Next part of this tutorial explains how to install Cisco IOS in GNS3 step by step.
That’s all for this tutorial. If you face any issue or error while installing and configuring GNS3, let me know. I will assist you in setting up the GNS3 correctly for CCNA Lab. If you like this tutorial let the other know by sharing it through your favorite social network.
Prerequisites for 200-301
200-301 is a single exam, consisting of about 120 questions. It covers a wide range of topics, such as routing and switching, security, wireless networking, and even some programming concepts. As with other Cisco certifications, you can take it at any of the Pearson VUE certification centers.
The recommended training program that can be taken at a Cisco academy is called Implementing and Administering Cisco Solutions (CCNA). The successful completion of a training course will get you a training badge.
Full Version 200-301 Dumps