


It can also be used to exercise with features or to examine configurations that need to be set up later on real devices. Select the Start Menu folder for the GNS3 shortcut. Open source networking is compatible too! GNS3 is a perfect alternative or completing utility to real labs for network engineers, managers and people learning for certifications such as Cisco CCNP, CCNA and CCIE as well as Juniper JNCIS, JNCIA and JNCIE. VirtualBox, uses server and desktop OS as well as Juniper JunOS.

Qemu, a general open source emulator, it uses Cisco ASA, IPS and PIX. Dynamips, the popular Cisco IOS emulator. In order to offer full and correct simulations, GNS3 actually uses the next emulators to function the very same operating systems as in real networks:
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This application provides an instinctive graphical user interface to create and customize virtual networks, it functions on traditional computer hardware and may be used on numerous operating systems, including Microsoft Windows, Linux, and Mac OS X. All of this without having committed network hardware such as switches and routers. GNS3 is an open source application (under GPL) that imitates complex networks while being as close as possible to the style real networks perform.
