Cisco IOS Download for GNS3

One of the most commonly used software to prepare for the Cisco exams is GNS3. To use network devices such as Router, Switch on the GNS3 emulator, you must download Cisco images.

Cisco IOS Download for GNS3

GNS3 Supported Cisco Router IOS Images Download

GNS3 is more specific and professional than Cisco Packet Tracer. There is no need to add any Cisco devices to the Packet Tracer, but it is absolutely necessary to download and add the Cisco IOS for GNS3.

You need to use GNS3 to use the actual Router and Switch IOS images. With this software, you can emulate a Cisco Router/Switch and prepare for Cisco exams in a more professional way.

You can download and use the most suitable Cisco images to avoid problems when using the network simulator. You can also check out this article to install GNS3 on your computer.

You also need to configure Minimum RAM when adding a Cisco Router or Switch images to the program.

If you set a value that is greater than the minimum RAM requirement, you will put more load on your computer’s processor and experience performance issues.

If you have a powerful PC, you can also set a higher RAM value for Cisco Routers.

When adding a Router to the simulator software, an IDLE-PC value is also determined. The IDLE-PC value is determined by the hardware specifications of your computer so that the routers you add can work more efficiently.

The running IOS images you can use on GNS3 are the c3640, c3660, c3725, c3745, and c7200 versions.

Here are a few additional Cisco Router images. For example, if you use a c1700 series Router, it will be insufficient because it does not support some features when you create a more advanced network topology.

Download Router Image for GNS3

You can download Router images for GNS3 by clicking on the links in the table below.

ModelIOS VersionFile NameMinimum RAMLink
c170012.4.25dc1700-adventerprisek9-mz.124-25d.bin128 MBDownload
c170012.4.15T14c1700-adventerprisek9-mz.124-15.T14.bin160 MBDownload
c260012.4.25dc2600-adventerprisek9-mz.124-25d.bin128 MBDownload
c260012.4.15T14c2600-adventerprisek9-mz.124-15.T14.bin256 MBDownload
c269112.4.25dc2691-adventerprisek9-mz.124-25d.bin192 MBDownload
c269112.4.15T14c2691-adventerprisek9-mz.124-15.T14.bin256 MBDownload
c364012.4.23c3640-a3js-mz.124-23128 MBDownload
c366012.4.19c3660-a3jk9s-mz.124-19.bin192 MBDownload
c372512.4.25dc3725-adventerprisek9-mz.124-25d.bin128 MBDownload
c372512.4.15T14c3725-adventerprisek9-mz.124-15.T14.bin256 MBDownload
c374512.4.25dc3745-adventerprisek9-mz.124-25d.bin256 MBDownload
c374512.4.15T14c3745-adventerprisek9-mz.124-15.T14.bin256 MBDownload
c720015c7200-adventerprisek9-mz.152-4.M7.bin512 MBDownload
c720012.4.25gc7200-a3jk9s-mz.124-25g.bin256 MBDownload
c720012.4.24T5c7200-adventerprisek9-mz.124-24.T5256 MBDownload

How to Add Router Image ⇒ Video

After downloading one of the iOS images to your computer, you can watch the video below to add the image file to the Graphical Network Simulator-3 and also subscribe to our YouTube channel to support us!

   Final Word

In this article, we have shared the most appropriate Cisco images for you. These images have been used and tested on various projects. Thanks for following us!

   Related Articles

How to Change the Name of Router
♦ How to Assing IP Address to Router
How to Add Router to GNS3
How to Configure Router
How to Configure Switch


  1. Avatar for Nassiri Nassiri 3 June 2020

    Thank you very helpful

    • Avatar for Tolga Bagci Tolga Bagci 3 June 2020

      You’re welcome!

  2. Avatar for zecko zecko 11 June 2020

    HI Tolga
    Im looking for Cisco IOS images that I can use in GNS3 since I cant install any of these listed here.

  3. Avatar for ben ben 17 June 2020

    The files don’t download.

  4. Avatar for Brown Akorlivia Brown Akorlivia 22 June 2020

    Thank you very much. God richly bless you

  5. Avatar for Bhargavi B Bhargavi B 2 July 2020

    Thank you So much!

    • Avatar for Tolga Bagci Tolga Bagci 2 July 2020

      You’re welcome, Bhargavi!

  6. Avatar for Arularasan MK Arularasan MK 30 September 2020

    Downloaded files are in bin format …Not in image format ….please share image file format….

    • Avatar for David1974 David1974 23 June 2021

      You can add the .bin files to GNS3:
      –> “Edit”
      –> “Preferences”
      –> “Dynamips – IOS routers”
      –> “New”
      –> “New Image” –“> Browse to *.bin file.

  7. Avatar for Jaures Jaures 6 October 2020

    Merci beaucoup

  8. Avatar for Arik Raz Arik Raz 15 October 2020

    hi , im trying to load SWITCHES IOS into
    the GNS3
    but i cant find , or see any way to do it

    is it loaded the same as router IOS , and then listed under ROUTERS ?
    sorry for the dumb question
    please advise

  9. Avatar for Alaa Mohammed Alaa Mohammed 18 March 2021

    hello sir
    i need IOUl2,IOUl3, IOSV x and more if you have

  10. Avatar for sai kiran sai kiran 12 April 2021

    DCLI 201 router comes under which series

  11. Avatar for Samuel Samuel 6 July 2021

    please my ether switch is saying its an old version. so CLI like “sh vlan bri” or creating vlans doesnt work except i go back to priviledge exec mode and input “vlan databas” before i can create a vlan, PLease i need a new router ios image. thanks in advance!


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