Original subtitles

Now so far we know how to disconnect any device from any networks and thus we also learned how to disconnect

multiple devices from networks.

As long as these devices and these networks are within our Wi-Fi range the last thing that I want to

show you is how to disconnect all devices from a specific network.

And I also want to cover an issue that you might face when you do this the authentication attacks.

So first of all just going to run aero dump and against all the networks around me.

So just don't and you zero and right here we can see the networks and we.

And then they can pick any one that I want to target.

So I'm going to Control-C out of this and my target network is going to be this network the 1 9 6 network

and I'm going to run this attack to disconnect all devices that's connected to this network.

So if I come here we have this Windows device the windows device is connected right here.

And if we try to go to Google dot com you'll see that we have internet connection so we're going to

run the same command that we used to do before.

The only difference is this time we're not going to specify a client.

We're not going to specify a target computer.

We're only going to specify a target network.

And I'm just going to right click this and copy the MAC address of my target network and then I'm going

to run airplay ngi like we did before we're going to do with the author talk and I'm going to specify

the number of packets.

So that's going to be a very large number like we used to do before.

Then I'm going to specify the target network and that's the MAC address of my access point.

And usually I do not see and give the target client or the target computer but in this case in today's

lecture we want to target all computers.

So we're not going to do that.

And then I'm going to give it the wireless card that has monitor mode enabled on it and it's 1 0.

In my case so it's the exact same command that we used to do before.

The only difference is we didn't specify a target computer we didn't specify a minus C argument.

Now if I run this like this I'm actually going to get an error and you might even get that error with

the normal attacks though with the attacks where you are specifying a MAC address that we showed in

previous lectures.

But for me it only shows this error.

Now when I specify when I don't specify a target address but I'm going to show you how to fix it anyway

so I'm going to hit enter and you'll see that replay ngi will Hank for a little bit and then it's going

to throw me an error saying that the VSS idea is invalid.

But clearly the B-S idea is correct.

And I use the right Mac address.

The problem with this is the channel.

So you can see that it's saying that my wireless card that it's waiting for Beacon's on Channel 7.

And if we look at our target network you'll see that it's running on Channel 11 so to fix this issue

just one error dump ngi against that specific network that you want to target.

So I'm going to specify the BSA site the

and I'm going to also specify the channel and run arrow don't you.

So we actually seen how to do that with the targeted arrow dump the command in the previous lectures.

So it's just a dump.

Ngi we give with the VSS ID.

The MAC address of the target network.

And then we give it the channel which is the channel that the target network is run in on.

And my target network is right here running on Channel 11 and this is its business ID.

So I'm going to hit enter and this will just launch a dump.

N-G normally for me it will show me the connected clients here.

And the second part.

But now if I come back here and run this attack that will actually work and if I go here on the Windows

machine that's connected to the 9:26 network you'll see that it's going to get disconnected in a second.

But now fi browse the Internet it's not going to work and you'll see that I lost my internet connection

here.

And basically all devices that's connected to this UPC network the 9:26 should have lost their connection

by now because we're targeting all the devices in the network because we didn't specify miners see in

this command.

So we only specified or minus a.

Now keep in mind that when you target a large number of clients the effectiveness of the attack is reduced.

So the less clients that you target the more effective the attack is with this particular example.

The Windows machine didn't get disconnected for about 50 seconds and then it got disconnected.

So keep this in mind that the more clients that you target the less effective the attack.

Also keep in mind the issue that I faced in this lecture where airdrome where airplanes you said it

couldn't find the SS I.D. If you do face that issue then just run aero dump ngi before you run the attack

and make sure you're on a dump.

Ngi using the minus minus channel and the minus minus B SS ID arguments against the same network that

you're targeting.

So that's it.

So far we know how to disconnect one client multiple clients or all clients from any network and thus

even if that network uses a password and even if we don't know that password and if we're not connected

to that network as long as the network and the devices are within our range we can control their connections

and prevent them from connecting.