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GNS3 use original IOS image to add virtual router on your Topology. GNS3 one of the best Net simulator application for student who can do practice like real network scenario. GSN3 provide real time output for the use for which he type command. Since GNS3 is not a simulator but a typical router emulator that uses original IOS images of the routers that are developed by Cisco, it is important for you to understand how to mount the images. GNS3 works by using real Cisco IOS images which are emulated using a program called Dynamips. GNS3 is really like the GUI part of the overall product. With this GUI, users get an easy to use interface that allows them to build complex labs consisting of a variety of supported Cisco routers. Use the ellipses button next to the Image file box to locate an IOS image. As mentioned earlier, you must provide your own Cisco IOS to use with GNS3 due to licensing issues. Torrent converter for windows. GNS3 is meant to be used in a lab environment for testing and learning. Once you have obtained your own copy of a Cisco IOS for one of the. For the purposes of this article, an image for a Cisco 7206 platform (7200) will be used. GNS3 Initial Configuration. The main parts of the initial configuration of GNS3 to ready it for Cisco IOS emulation is the configuration of Cisco IOS images into GNS3 and the configuration of any non-default preferences. Cisco IOS Download for GNS3. The GNS3 program is more specific and professional than the Cisco Packet Tracer program. There is no need to install any Cisco IOS for Cisco Packet Tracer, but it is absolutely necessary to download and install Cisco IOS for GNS3. You need to use the GNS3 program to use the actual Cisco Router and Switch IOS images.
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![Router Router](/uploads/1/2/4/8/124800081/597485713.jpg)
- Apr 25, 2013
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Cisco Router Ios Image
Since GNS3 is not a simulator but a typical router emulator that uses original IOS images of the routers that are developed by Cisco, it is important for you to understand how to mount the images on the GNS3 interface so that you can use them to create and configure virtual routers and topologies in the GNS3 console.Unlike router simulators like Packet Tracer that provides the output result on the basis of the programmed reaction as per user interaction, a router emulator like GNS3 always provides the most accurate and real-time outputs to the commands that the users type within the console. The reason behind this accuracy in the results is because it is the original IOS image that works within the virtual routers. Such IOS images are the backup files from the physical routers, and therefore they respond to the users’ inputs exactly the way the physical routers do.
Mounting the IOS images is a simple task, however you might need to analyze and look for the correct image before you mount it to the GNS3 application. Since GNS3 is a dump software, you must have good understanding of the Cisco routers and switches series, their IOS images, and how to configure the routers. GNS3 is, by no means, any Cisco training application. It is just for practicing purposes which assumes that you already know much about Cisco and its products, and you just want to explore and expand your skills to get expertise in your profession.
The process of mounting IOS images on GNS3 is as below:
- ■Log on to the computer on which GNS3 is installed.
■Initialize the GNS3 application by double-clicking its icon.
■Once opened, click Edit from the menu bar.
■From the displayed drop-down menu, click IOS images and hypervisors.
■On the opened IOS images and hypervisors box, click the browse button representing the Image file field.
■On the Select an IOS Image box, browse for and locate an IOS image file to mount.
■On the IOS Image confirmation box, click OK to allow the GNS3 software to compress the image file.
■Click the Save button to save the mounted IOS image file.
■Once done, click Close. Optionally you can also click the Auto Calculation button representing the Idle PC label to improve the efficiency of the application. You can also configure Idle PC value later.