Emulate the behavior of a real network and test the performance of various hardware without actually spending the money to buy it. The tool includes ample documentation on its functionality and supports an unlimited number of network components such as rotuers, switches, firewalls, guests, etc.
GNS3 helps you build graphic models of computer networks, and simulate networks of different levels of complexity. This program can be used by students that are trying to get various certifications, but also by network engineers and other professionals. It comes as an open-source solution that runs on all popular Windows versions.
GNS3 comes with a lot of comprehensive documentation regarding its features and tools, as well as their functionality. Moreover, its graphical user-interface was designed in such way that you will not feel the need to further customize it. The main window of the program allows you to drag network components (various routers, firewalls, switches, guests, etc.) and drop them on the working area. You are afterward enabled to create different connections between them, while taking into consideration the network standards, of course. GNS3 supports link types like: Ethernet, GigaEthernet, ATM, FastEthernet, POS, Manual, Serial, etc.
GNS3 comes with additional components that are specific to network simulations. It enables you to install tools like: Dynamips, VirtualBox, Qemu, Dynagen, etc. Therefore, any user that is into this complex field of computing can use GNS3 for simulating various network models.
v0.8 [Aug 29, 2011]
GNS3 version 0.8.3.1 has been released:
- brings minor fixes and support for access to GNS3 VirtualBox VM hostnames from inside VMs (e.g. VBoxControl guestproperty get NameInGNS3).
- includes updated vboxwrapper.exe that work with the new VirtualBox 4.2.
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