Download cisco iso images

We assume that you have already downloaded and installed the GNS3 simulator on your system. If you have not yet worked with GNS3, we would highly recommend you to visit the following links that will guide you how to download and use GNS3. Using GNS3 is not as difficult as people think.

We assume you follow the legal license terms. Note: Some of the above-mentioned links may not work because it might be possible that their URLs are changed or the IOS images are removed from the hosting server.

Take a quick look at the following step by step GNS3 tutorials and start to learn from the beginning to advance GNS3 configurations. You can download Cisco IOS dynamips images from below links. Cisco Website Cisco Access required to download images from cisco website. Then login as root using SSH protocol and uncompress it:.

Output file extension must be. Be sure you are using properly your source and output filenames. Move uncompressed image to destination folder: mv cbk9no3r2sy-mz. Start a Dynamips instance with basic configuration:. It is like receiving a physical PC with all the needed software already on it. However, this is virtual: much simpler.

As a result, you will see an orange box icon next to the file. Just double-click on the file to open it. This will open VirtualBox and launch the Import Wizard: a window that looks like the following one.

Here you can check all the settings, and eventually modify some. The import will last a few seconds, then you will have to click on Finish. And this is it. When starting, GNS3 will raise a pop-up asking to configure a local server: today we are going to do it, and get rid of that pop-up forever. You will be able to follow this tutorial anyway. Here, be sure that you have selected the first option: Run modern IOS , which should be the default. Then, click Next to move to the following step.

At this point, the Wizard will ask you to configure a Local Server. Here, change the Host Binding to This will ensure you will have GNS3 always working, even if you are offline. In case you receive a failure message , navigate to the path specified in Server path and run gns3server. Here, you just have to select VirtualBox. GNS3 will automatically search in your list of Virtual Machines for the right one. You can continue the setup-with no problem.

At this point, you are going to have a recap window, where you can click Finish. If your company is entitled to that, just use it. This is asking you to install a virtual router or appliance and gives you the options to do that. A new window will appear, asking you what to do with the virtual router we are creating.