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! To create a new GNS3 topology, select a group of devices in the Devices Toolbar by clicking the device type button. 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. Interface IP-Address OK? Method Status ProtocolįastEthernet0/0 10.1.1.When the router is running, the Red icon in Topology Summary will be Green. *Mar 1 00:03:42.663: %LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback0, changed state to up Let’s look at the interfaces of R1:Įnter configuration commands, one per line. ![]() Since these are IOS images, they will act like real routers, as you’ll see.Īfter R1 loads up, we’ll already be at the enable prompt, due to the configuration files GNS3 includes (they also configure “logging sync” and “exec-time 0 0” on line con 0 for us, and let us bypass that initial configuration dialog). This powers on all devices in the Workspace, as well as launches Solar-Putty and creates tabs for each device: Click the Interface Names icon (this is optional), to display the interfaces on each device, that have been connected together.īelow, the green Start button (marked #1) and the Console button (marked #2) have been selected.So these will not work on hardware machine. If you also want to download Cisco router IOS images from below linkL: NOTE: These all below IOS are specifically designed and modified for GNS3 and EVE-NG. These all IOS are tested in eve-ng and GNS3 platforms and working. ![]()
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