In this article, we have examined how to configure Cisco IOS to the most popular network simulator program used to prepare for the Cisco exams. You can watch the video below to upload Cisco IOS to GNS3, and you can also subscribe to our YouTube channel to support us! How to Run a Cisco Router in GNS3 ⇒ Video You can see the GNS3 Router can communicate with the physical network from the image below. Select Wi-Fi, Ethernet, or VMnet Adapter.Ĭonnect one end of the cable to Cloud1/Wi-Fi and the other end to the FastEthernet0/0 interface you have configured.Ĭlick the Start/Resume all devices button to start the Cloud1 and Router.Īfter you have added the router to the physical network, Ping the computer to test the network connection. In the Cloud setup menu that opens, you need to select which network card your computer accesses to your physical network. The important point here is to give an IP address to the FastEthernet interface from your physical network. To configure the router’s FastEthernet interface, double-click on it and open the CLI prompt, and then perform the following commands. You can also use this method to take the Router to the Internet.
You must configure a Cloud connection to add the Cisco Router to the physical network to which your desktop or laptop computer is connected. How to Add the Cisco Router to the Physical Network You can open the CLI command prompt by double-clicking on it to configure the router.Īs you can see in the image below, the Router you added on GNS3 works successfully!įor example, you can check the running configuration file of the Cisco Router using the R1# show running-config command. Or if you have a server, download the CML on the server and make sure the server is able to handle it.When the router is running, the Red icon in Topology Summary will be Green. These all IOS are tested in eve-ng and GNS3 and working. Below is the list of all Cisco routers and hybrid routers which contains the ability of both switching and routing. The only think you need to think about is you need a solid computer with x amount of RAM (the more nodes, the more RAM and storage is required) and storage. Free Download Cisco IOS Images for GNS3 and EVE NG. You can download bunch of stuff, like Nexus, Fortigate, ASA, routers, switches, servers and so on. You can even download the images and use it offline so it is not that you need to pay $199 every year.
You can purchase CML from Cisco website and it will cost you $199/year and I will highly recommend you to invest in it.
You also have EVE-NG (which is not Cisco) and I personally have not used it but it’s looks much nicer than GNS3. What I (and most of the people) recommend is Ciscos own virtual lab, CML (Cisco Modeling Lab) that is equivalent to GNS3 but a little bit better. There are free IOS images but would not recommend you to download those.
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