hi, in this video i will show you how to create an information technology lab using GNS3
First go to gns3.com and download the installer
GNS3 supports Windows, Linux and macOS operating systems
You will be asked to create a free account to be allowed to download the installer
Because I already have an account so I can download the installer
My computer is running Windows operating system so I download the installer for Windows operating system
Here you select to install GNS3 VM
With the installation of GNS3 with hypervisor will get you a full lab
GNS3 supports hypervisors such as VMware Workstation, VMware ESXi, VirtualBox and HyperV
But in my opinion you should use VMware Workstation hypervisor
You can use the free hypervisor vmware workstation player to build your own lab
During the installation, the virtual machine file for the vmware workstation hypervisor will automatically be downloaded to your computer
This is the automatically downloaded virtual machine file, it's a compressed file
This file will be used later in the video
I will continue the unfinished installation steps
During the installation, your computer will be installed with a few other software such as WinPcap, Wireshark, Nmap, Solar PuTTy
Here you do not open GNS3 software and install vmware virtualization workstation
In this example I use vmware workstation player, it's free
There are two different versions for Windows and Linux
Of course I will download the installer for Windows computers
After a few clicks of Next you will finish installing the VMware Workstation hypervisor
As mentioned in the previous step I use the free version
During the installation of GNS3 a virtual machine file was automatically downloaded to the computer
Time to use it
You unzip the downloaded file
And this is the file you get after extracting
Next you use this file to create a GNS3 virtual machine
You open the vmware workstation hypervisor, browse to the unzipped file
Name the virtual machine, I named the virtual machine GNS3
This virtual machine will be used later in the video so you should keep its name in mind
So you have a new GNS3 virtual machine
However, I recommend you to customize this virtual machine
You increase the RAM memory because by default it is only 2GB
Increase the number of CPUs for the virtual machine, here I choose 4 cpu
Next, set up the network as a bridge so that the devices connect directly to my local network
I do this because next step I will add a Windows 10 computer to my lab
So how to connect GNS3 to the newly created virtual machine
Let's do it together
You open GNS3 and choose to run the application on the virtual machine
GNS3 will automatically detect the vmware hypervisor and the virtual machines that have been created on it
Here I still have to set the RAM and the number of processors of the virtual machine
Set RAM memory to 8GB
Set vCPU cores to 4
You set up RAM and CPU memory to suit your computer
Your virtual machine will automatically start up and connect to the GNS3 software
So I have successfully installed GNS3 with VMware workstation hypervisor
Next we create mini labs for you to get used to if you are using it for the first time
I created a new lab and named it test
Here is a list of the equipment available for you to create your lab
But that is too few devices to create a full lab so we need to add more devices to GNS3
The first device I will add to GNS3 is a Windows computer
Here is a list of devices you can add to GNS3
It is divided into 4 groups Firewalls, Guest, Routers, Switchs
Are there a lot of devices you can add to GNS3?
But not all are free
There are devices you have to pay to add to GNS3
But with Windows computers is free
To add a Windows computer you must import the virtual machine file into GNS3
To do that, you download the Windows virtual machine file
In this example I download the Windows 10 virtual machine
Also you can use Windows 7 or Windows 8, because it will require lower RAM and CPU memory
Virtual machine platform is vmware for Windows operating system
And this is the compressed file I will get so I will unzip it
These are the files obtained after unpacking, I will import it into GNS3
You browse to the file you just obtained and import it into GNS3
It will take a while to upload the file to the GNS3 system
The import is done and here is the username and password to login to Windows
You write it down for later use, Passw0rd!
Time to create a little lab
I add a cloud, then a Windows PC
Then I will connect the computer to the cloud
Next, set up the hardware for the Windows computer
Default is only 1GB RAM, I will increase to 3GB
Set CPUs to 2
Start up and access a Windows computer
You will be asked for a password, it is Passw0rd! as we know in the previous step
After the Windows 10 computer boots successfully I check the ip address and check the internet connection
The Windows 10 computer in the lab was given an ip address directly from my router
And it can connect to the internet
It's great, isn't it?
Let's turn off the Windows computer and add other devices to GNS3
A lab can't be without a router, so I'll add a router to GNS3
This is an operating system file of the Cisco router
Next I will add the Cisco router to GNS3
Because I already have the OS file, so I add it manually
Dynamics ISO routers
Run this ISO router on the GNS3 VM
Browse to the prepared router operating system file
You can change the name if you want, I leave it as default
Next you set up the slots on the router
I will set up a router with 2 Gigabit ports
So I have successfully added the cisco 7200 router to GNS3
We'll add it to the previous lab
Add the router to the lab
Next add a switch device to the lab
This lab has a Windows computer, a switch and a router
Next connected devices together
Connect the router to the internet
Connect the router to the switch
Connect a Windows computer to the switch
The icons don't look very good so I'll change them
Change icon for router
Next change the icon for the switch
Finally the icon for the Windows computer
Do you find that the new icons are better than before
Next you can change the name to suit your lab
In addition, you can display more information about the connection ports of the devices
So we've got a little lab
Now you can execute commands on routers and switches like on physical devices
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