How to Add a Cisco Router to GNS3 VM

This instructional guide will provide step-by-step instructions on seamlessly integrating a Cisco Router or Switch into a GNS3 virtual machine that has been installed and is currently running on a virtualization program. Following the outlined process, you can quickly and efficiently add the desired device to your virtual network environment.

How to Run a Cisco Router in GNS3 Server

Step 1: If you have not installed GNS3 VM with VMware before, please refer to the following video:


Step 2: The first thing you need to do after installing it is to add a router.

Step 3: After downloading the IOS image of a router you want to add, run GNS3 and GNS3-VM.

Step 4: On the GNS3 program, click File / Preferences.

Step 5: In the Preferences window, select the GNS3 VM, then Enable the GNS3 VM and click OK.

Step 6: The Servers Summary panel shows that the GNS3 VM runs smoothly.

Step 7: To add a Cisco Router or Switch, open Preferences again and click IOS Routers.

Step 8: Click New on the IOS Router Templates.

Step 9: In the Server Type window, select Run the IOS router on the GNS3-VM and click Next.

Step 10: In the IOS Image window, point to New Image and click Browse, select the Router’s image, and click Open.

Step 11: Enter the name of the Router in Name and Platform and select the platform. (E.g. c3745, c7200)

Step 12: In the Memory window, specify the amount of RAM for the Router and click Next.

Step 13: Select the interfaces you want to add to the Router in the Network Adapters window and click Next.

Step 14: In the WIC Modules window, specify the Serial Interface for the Router and continue with Next.

Step 15: In the Idle-PC window, you need to set a value on your computer for the Router to perform more efficiently. Click Idle-PC Finder and wait for your computer to place a value.

Step 16: After configuring the Idle-PC value for the Router, click Finish.

Step 17: Finally, in the IOS Router Templates window, check that the Server type of the Router you added is GNS3 Server.

   Related Articles

1. GNS3 Loopback
2. GNS3 Cloud
3. Install GNS3
4. GNS3 VM Update
5. Import GNS3 VM

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