‫OK.
‫So in all of my courses, I intend for the participants that they easily make hands on practice on their
‫own computers.
‫So to achieve this purpose in network layer attacks, we're going to use a network emulator.
‫With his famous name GNC three or graphical network simulator three, it's a network software emulator,
‫it allows the combination of virtual and real devices used to simulate complex networks.
‫So we'll see how to set one up and use GNC three throughout the course.
‫However, I do have to say that it's not an easy to use tool.
‫I'll try to keep it as simple as possible for you, but just stay with me and you'll get it too.
‫Anyway, if you don't want to deal with a GNC three, you can skip this section, even though I wouldn't
‫recommend it.
‫You'd still be able to make the most of the course, but like I'm saying, stick with me and I think
‫you'll get it to.
‫So now let's download and install the genes three tool on our host machines.
‫Since my whole system is a MacBook, I'll show the installation in Mac OS.
‫Installation steps are similar in other operating systems, so don't worry, you won't face any difficulties
‫if you do.
‫Just let me know and we will go through this step by step.
‫All right, so open a browser in your host machine and go to G and 3Com.
‫Click free download.
‫An account is required to download Genius three software, so create an account, you can use your genuine
‫email address, it's no problem.
‫Since I already have an account, I'll use a yup mail address this time.
‫So assign a password, select a country.
‫I'll use it for training purposes.
‫OK, create, account and continue.
‫Select the appropriate install file to download.
‫My machine is a Mac, so I'll choose Mac.
‫Download finishes and a couple of seconds.
‫I mean, if you've got the same bandwidth as I do.
‫Now select the installation file and double click to start the installation.
‫I'll just drag the icon and drop it onto the applications folder.
‫And that's about it, so I'm ready to use Jeunesse three now and go to the applications window and click
‫Jeunesse three to start it up.
‫OK, so in Mac, the files from a developer which is not identified by Apple are not allowed to run.
‫You get rid of this.
‫I'll just go to system preferences, select security and privacy, and you'll see the Jeunesse three
‫Dot app was blocked message.
‫Click the padlock icon at the bottom left corner, enter your password to allow the changes and click
‫Open anyway, right there.
‫Next to the G.A. three was blocked message.
‫Click Open.
‫And Janice restarts.