Graphical Network Simulator (GNS) version 3 is an emulator (note: is not simulator, yikes misleading ‘S’ from GNS) first released in 2008.It allows the combination of virtual and real devices, used to simulate complex networks.GNS-3 which is an OSS, uses Dynamips emulation software to simulate CISCO IOS.
What is Dynamips ?
Dynamips is an emulator computer program that was written to emulate Cisco Routers and it can emulate the hardware of the Cisco series routing platforms by directly booting an actual Cisco IOS software image into the emulator. Dynamips emulates Cisco platforms 1700, 2600, 2691, 3600, 3725, 3745, and 7200.
Here, I would like to share GNS-3 Labs with you all.