Please note that the IOSv appliance is based on IOS 15 and there are IOU (IOS on UNIX) images with IOS 15.Ĭ2691-adventerprisek9_Ĭ3745-adventerprisek9_8.binĬ7200p-adventerprisek9_1.bin All other platforms are now end-of-life and only support IOS 12.4. IOS 15.x – Only the c7200 series get newer IOS 15 images. You can download latest GNS3 Network Emulator from gns3 website. Although nothing beats practicing on original equipment but if anything stands close to original gear, that is GNS3. So without talking much here are the link where you can free download Cisco ios image and you I love GNS3- it is a great tool which can run real Router IOS.
To perform router installation, we need to have an IOS image. These are classified as Routing and Switching virtual machines (or R+Svms) for short. In the new GNS3 1.4, there is a way to run a second category of switches and routers. An emulator dedicated to emulate some Cisco hardware. Gns3 has a feature called Dynamips which allows us to install (CISCO IOS) image and emulate the router environment. GNS3 offers multiple ways to emulate IOS. If you can’t buy original routers and switches, GNS3 is your rescue. Today, we'll install a device on GNS3 VM that is not available in GNS3 Marketplace (CISCO IOS).
Its always better to use latest IOS versions, as they provide full command support.