Cisco Packet Tracer allow us to create the virtual network infrastructure. Packet Tracer is an open source application which can be downloaded for free from internet. Once you have downloaded the packet tracer application, it’s pretty simple to run the setup and install it on your device.
Now that you have it running, on the top you can see the menu bar with file, edit, options, view and tools button. The one that is most interesting in it is the options selection. So, let’s go ahead and click options, and then select preferences. You set couple of things here to customize Packet Tracer.
You can access the CLI also known as command-line interface by clicking on the device and selecting CLI tab.
Now let’s take a look at the blue bar, and you see all the different icons that are there. The icons that you’re going to be interested in are the one with a white piece of paper with a little twinkle. That’s the new file icon used create a new file. The next one is going to be, just to the right of that, it’s your open folder as we’ve seen in every application. Our little floppy drive, which we don’t use anymore, is to save your work. So, those three buttons are important. If you keep going towards the right in that blue bar, you’re going to see three icons, but actually only the two magnifying glasses is what you’re interested in, is the magnifying glass with the plus sign, or the magnifying glass with the minus.
Now let’s change our view all the way to the right, on the sidebar. We have a selector tool, which is the very top one, rectangle, the dotted rectangle and hand icon. Then, there is place note icon or text box, which can be used to add text on your file. That’s how you can name our VLANs, routers or add small descriptions to things. Now the next button just beneath that is the delete button. If by chance you have an item that’s selected already and you accidentally click that button, the moment you click on that it’s going to go ahead and delete whatever item is selected. So be very careful when choosing that.
Now towards the bottom of that sidebar we have two envelopes, which is a simple PDU and a complex PDU. On the very top you have the router, the switch, a hub, a wireless device, and that orange lightning bolt. Well that orange lightning bolt is actually what you need to click on to get to your connection types. If you just wanted to select an actual device or inter-networking device from the top, just click on it and then click on the work area to put it in network. At the bottom of this same connection types, you can see end devices. There is generic computer, a generic laptop and many more different types of devices that we can click and click on work area or click and drag into a work area. In the new Packet Tracer, we do have a firewall option as well. Then the next one is a cloud. If you want to simulate frame relay, you can go ahead and select one of these clouds and create a frame relay network using this. So, this in its entirety is the Packet Tracer. One rule though, don’t forget to save your files. Always save your files.
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