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And this lecture I'd like to talk about why fi bond the band of a network defines what frequency it
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can use to broadcast the signal.
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This means it also defines the frequency that the client or the computers need to be able to support
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and use in order to be able to connect to this network.
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The two main frequencies used in Wi-Fi networks are two point four and five gigahertz.
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Now previously when we use aero dump ngi we were only sniffing on the 2.4 gigahertz frequency.
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You can see first of all my wireless adapter is in monitor mode zero in here.
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So if I just do a dump Engine 1 zero
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you'll see that I can get the wireless networks around me but you might have noticed that you won't
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actually see all the networks around you when you run aero dump.
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Angie I'm going to Control-C this and if I go here to my normal host machine and it actually has a built
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in wireless adapter so it's not as strong as my alpha adapter but if I look for networks you'll see
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I actually have much more networks in here and mainly I have networks and then here and the name by
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5G now the network doesn't have to necessarily and in 5G But here in Ireland if a network broadcasts
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over five gigahertz the service provider adds 5G to the network name.
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What we also have other networks broadcast over 5G that don't.
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And in 5G.
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But basically the main point that I want to talk about is I'm not able to see all the networks around
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me in here and aero dump energy.
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And the reason for this is because there are dump energy is only sniffing on 2.4 gigahertz frequency.
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So if you do this and you dont see all the networks around you or if you're sniffing on your own network
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but you don't see all the clients in your network it's possible that your router is broadcasting over
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two months over 2.4 and 5 gigahertz.
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And if you're not seeing the router at all if you are not seeing the network at all like it's like what's
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happening here for me then the router is probably just broadcast in over five gigahertz.
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Now this doesn't mean that your wireless adapter is not good.
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It just literally means that this adapter is not able to see five gigahertz frequency it's just outside
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of its limit outside of its reach.
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The main problem with five gigahertz is that there are a lot of wireless adapters that can see it and
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can communicate with it but not many of them support monitor mode and packet injection.
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So you might see me and other people recommending wireless adapters like Alpha A.W. They're 0 3 6 and
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hate.
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This is my most favorite wireless adapter.
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I use it all the time even now.
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But the problem with that adapter is it doesn't pick up five gigahertz frequency so it doesn't mean
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that that adapter is bad.
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It just means that it can see five gigahertz frequency.
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Like I said there aren't many wireless adapters that support by five gigahertz but I have an adapter
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here.
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It's Alpha AWOS 0 3 6 AC Hage and this adapter supports both 2.4 gigahertz and 5 gigahertz frequencies.
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It's not as good as the alpha but it does the job.
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Now if you want more information about wireless adapters check out the link in the resources.
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I'm not going to talk a lot about what wireless adapters do.
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But in this lecture I want to show you how to sniff and discover five gigahertz frequency networks and
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then so that you can use all the attacks that you've learnt in my other lecture and in my previous videos
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with five gigahertz networks.
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So the adapter that I'm using right now supports five gigahertz But as you can see I still can't pick
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up these networks just because I need to specifically tell aero dump Engy that I want you to listen
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on five gigahertz frequencies and five gigahertz channels.
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To do that all we have to do is just to era dump energy like we always do and then we're going to use
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a new argument that we haven't seen before and this argument is called bond and we're going to tell
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it that I want you to sniff on band aid.
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And that's the band that supports five gigahertz frequency.
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And then I'm just going to give it my why the name of my wireless adapter and monitor mode which is
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mono zero.
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So the command is very simple it's very similar to what we've used before and all we have to do is just
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type in an era dump ngi followed by the band and the band that we want to use is a and we're following
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that with our wireless interface.
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So I'm going to hit enter
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and as you can see you soon as we had this I'm actually just going to do Control-C now cause you can
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see the results.
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You can see that we got much more networks right now and we have the five gigahertz networks so we have
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this network and this network that we were able to see.
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We have the Jameson whiskey network as well.
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And basically we're able to capture all the networks that use the five gigahertz frequency.
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Now you can use this command exactly the same way that we used it before so you can add the arguments
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that we were using before.
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You can do B as ID and put the MAC address of your target and then you can do channel and put the channel.
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You can do minus minus right and save the data that you store in a file and then run all the attacks
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that I taught you before in my other courses.
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So I'm not going to go all over that again because the attacks are exactly the same.
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The only difference is you want to make sure that you use a wireless adapter that supports five gigahertz
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frequency and if your target uses five gigahertz then make sure that you tell Aradigm energy to use
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the bond instead of just run in on the 2.4 gigahertz frequency.
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One more thing that I want and what I've actually said this before.
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If you run a dump and against a network and you see some devices misson then there is a high chance
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that these devices are connected over five gigahertz.
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So again use the band a and then you should be able to see these devices.
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