GNS3 is an application for simulating computer networks that supports various vendors such as Mikrotik, Cisco, Juniper, etc.
GNS3 is a GUI-based network simulator application that was created in 2008. By using this application, you can simulate devices with the help of emulators or virtualization technology. One of the emulator technologies at that time was dynamips, which was used to simulate Cisco IOS.
At that time to simulate a Cisco router, we needed to install the dynamips support application first to be able to run on Windows, Linux, FreeBSD, or macOS operating systems. With GNS3, everything is included (complete package) which is packaged in such a way that it is easier to use as it is today.
GNS3 is a complementary tool that can be used to perform simulations for network engineers, administrators and those who want to study for certifications such as Mikrotik MTCNA, MTCRE, MTCWE, MTCTCE, MTCUME, MTCIPv6E, MTCSE, MTCINE, Cisco CCNA, CCNP, CCIP, CCIE as well as Juniper JNCIA, JNCIS and JNCIE.
GNS3 is often used as a router simulator for Cisco, Juniper, Mikrotik and Virtual Machines. Unlike other network simulation applications such as Cisco Packet Tracer, which is limited, only able to simulate Cisco devices, GNS3 can be used for various brands and types of devices, including Switch, Router, Firewall, Server, etc.
So basically by using this application we can simulate various types of network devices and even operating systems in one application.
You no longer need to bother making a physical laboratory using real devices, which of course are complicated and expensive because you have to buy physical devices. Just use this GNS3 application to learn to make simple or complex topologies though.
And what's even more great, all of that you can get for free, because GNS3 is a type of open source application that can be used by everyone.
There have been many emulator software used as simulators, but most of them do not provide complete commands on every type of device being simulated. GNS3 is a simulator with the concept of emulating the same operating system so that what is seen when it is run is the actual operating system of a device being used.
Download the Latest GNS3 Graphic Network Simulator
- License: Freeware
- Developer: SolarWinds Worldwide LLC
- Operating System: Windows XP/Vista/7/8/10/11
