The only IOS images currently available from Cisco, that will work with the Dynamips emulator are the c7200 images (not the c7200p images!). The images for all of the other platforms Dynamips supported hit End of Support status, and their images were removed.

GNS3 offers multiple ways to emulate IOS. For older images, we use and maintain Dynamips; an emulator dedicated to emulate some Cisco hardware. Dynamips can run unmodified IOS images. In the new GNS3 1.4, there is a way to run a second category of switches and routers. These are classified as Routing and Switching virtual machines (or R+Svms) for short. What are the differences? Here are the major differences:


Download Iou Images For Gns3


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Only the c7200 series get newer IOS 15 images. All other platforms are now end-of-life and only support IOS 12.4. Please note that the IOSv appliance is based on IOS 15 and there are IOU (IOS on UNIX) images with IOS 15.

You will find the technology train images to contain the newest features but it may also contain the most bugs. We recommend Mainline over Technology train if you are interested on stability without the need of new features.Please see Cisco IOS Versions and Naming for more information.

When Dynamips runs an IOS image, a single instance can consume 100% of the processing time for a CPU core or thread. To remedy this, you can supply Dynamips with an Idle-PC value, to consume less CPU. This value will vary between devices/images. To help automate the process of determining a valid Idle-PC value, you can use the Idle-PC finder button when importing a supported IOS image into GNS3:

I am really happy I'm finally part of cisco community , I've been working on packet Tracer since I started studying networks but as y'all know it's a bit limitted so I switched to GNS3, the only problem here is that I can't find cisco equipement images for GNS3 ( routers,switches.. ) 

Can anybody please show me how or where can I Download these images , I'll be grateful :)

GNS3 Full Pack product with built-in images and workbooks. The great thing about this product is that most of the images from Cisco Routers & Switches, Fortinet, Cisco ISE, Cisco FirePower, Cisco CSR, Nexus Switches, XRv Routers, PaloAlto, Juniper, Windows, Linux, ESXi, and other major vendors are installed on this Pack, It has 52 latest images and no need to waste your time to upload images by yourself. (See the images list in PDF here); also it has premade-ready and pre-configured GNS3 labs + Workbooks, You can start practicing your CCNA GNS3 labs, CCNP LABs, GNS3 CCIE labs, GNS3 firewall, and CCIE labs once you have downloaded this product, and it also NO longer needs to be installed. For more information, please watch the below video.

With our GNS3 download, you can access a vast array of Cisco ios images, including Cisco Routers & Switches, Cisco ISE, Cisco FirePower, Cisco CSR, and Cisco ASAv. The GNS3 Full Pack even includes the much sought-after GNS3 Cisco Nexus image.

Our GNS3 Full Pack is compatible with multiple platforms, including GNS3 download for Windows. This cross-compatibility ensures you can run our full-pack images and labs regardless of your chosen platform.

By offering a range of images, labs, and tools, Dynamips ensures that you have everything you need for your network emulation tasks. Get in touch with us today, dive into the world of GNS3, and advance your networking skills with our GNS3 Full Pack Images.

This is what is included in the package most of the images from Cisco Routers, Switches, Fortinet, Cisco ISE 3, Cisco CSR1000v, Nexus, XRv, PaloAlto, Check Point, Juniper, FirePower, Windows, Linux, ESXi, and other vendors are pre-installed as a part of the package. Images for this product are available from vendors for Evaluation use.

Configuring GNS3 is a complicated and time-consuming task. With our GNS3 Full Pack product, it will take you about 20 minutes to start practicing your labs. And most of the images we used are the latest images that you can not find for free.

I am really happy with the support I get. Since I bought the gns3 full package product I am really happy and ready to work on my job. I am very happy with the stability of the gns3 package and the availability of the support service at all times and at any time it responds to me and that is really good. Thank you for everything.

I thought its hard to use and deploy as I am new to gns3 and wanted practice my CCNA course, but really this gns3 full pack really really was awesome. I bought it and deploy it like their instruction and after less than 1 hour I had full gns3 with images and start my practicing Cisco devices. I was worried about taking time to learn how to deploy images but this product make my day brilliant, and all images was updated. Thanks again bro

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.

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!

Hi Tolga .

thank you for sharing with is all these images. I have a question why these images does not need licence . are cisco images ? What are the diference betwenn these images and the cisco one.

No offense I just want to get clarify it

Are you using GNS3 from long time? Then you may have noticed that, increase in size of GNS3 VM on disk. In GNS3 we add and remove appliances all the time. But when we remove devices or appliances from GNS3 software that does not remove the associated images stored in GNS3VM by default.

So the final piece of this logic is that IF you want to connect remote devices to local devices, you will have to somehow get a local IOS image bound to the IP address of your outgoing interface BEFORE you add the local images to the topology.

One way is to change this IP/host binding  the local hypervisor uses. This can be done under the GNS3 Preferences, Dynamips settings, [Hypervisor Manager] tab. You could set the IP/host binding address here to the IP address of your outgoing interface, then add another copy of your local IOS image back in the Edit | IOS images and hypervisors, [IOS Images] tab. This is fine if you have a static IP address and never move your computer. But if you have a laptop or use DHCP, then this is not a good idea, because once you change this address, any new image you add will be bound to this IP address.

In fact, you can see that I have added two hypervisors on my local address, one on port 7200, the other on port 7201. Now when I go back to the Edit | IOS images and hypervisors, [IOS Images] tab, I can add say a 3725 image to one of these addresses, and a 7200 image to the other.

Thanks, I did open the image and it looks the same as other images so I think I'm going to back up current settings this weekend and give it a try. i was just hoping I was not going to be the Guinea pig here.


Can you please give me a list of the best cisco IOS images for gns3, I downloaded few of them but I have all time some kind of problem, like cannot save configuration, they do not want start and similar, if you can please type here list of the best and the most stable version of them.

I recently joined your website to prepare for my CCNP Route exam. I also downloaded GNS3, but now I want to know the legal way to get Cisco IOS images to run in my GNS3. Appreciate if you can help me with this.

I'm working on a graduation project about the Next Generation Firewall and would like to use the Pan-OS images. I registered on the Customer Support Portal but received an error and couldn't continue. It seems it won't be possible to download Pan-OS images if I'm not a customer but a student. Is this possible or do you have any free Pan-OS images that could be used for educational purposes only?

In the first post of the GNS3 VM series, we looked at how to setup GNS3 VM VMware ESXi. One of the awesome features of the new GNS3 VMs is that you can actually use your VIRL images in GNS3 as well! So if you hate the interface of VIRL, you can have the best of both worlds. In this post we will take a look at how to actually get GNS3 Windows application talking to your GNS3 VM and then how to use VIRL images in GNS3.

There has never been a better time for network learning and simulation as there are a lot of great products out there for the prospective network engineer, virtualization engineer, or server administrator to improve his or her skills in the networking arena. I have long been a fan of GNS3 and they have certainly made some tremendous strides in improving the application and extending its functionality. When VIRL came out, I jumped on the license to obtain a copy and while I think it holds a lot of promise, it is a pain to get setup and maintain and I am not a fan of the VM Maestro interface. Alas, we can though have the best of both worlds and use VIRL images in GNS3.

The easiest way to import your VIRL images into GNS3 is by means of the GNS3 Appliance. The appliances are basically templates that provide the framework of settings and such to GNS3 so it can correctly import various images and such.

A workaround I found was that you can simply edit the .gns3a file that you download as the appliance. These are simply JSON files it looks like. What I did was simply take out the reference to the older image. The default file contained the following data. 2351a5e196

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