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Deauthenticate the wireless client

It is also known as deauthentication attacks. These attacks are very useful. These attacks allow us to disconnect any device from any network that is within our range even if the network has encryption or uses a key.

In deauthentication attack, we are going to pretend to be client and send a deauthentication packet to the router by changing our MAC address to the MAC address of the client and tell the router that we want to disconnect from you. At the same time, we are going to pretend to be router by changing our MAC address to the router's MAC address until the client that we are requesting to be disconnected. After this, the connection will be lost. Through this process, we can disconnect or deauthenticate any client from any network. To do this, we will use a tool called aireplay-ng.

Deauthenticate the wireless client
Deauthenticate the wireless client

First of all, we will run airodump-ng on the target network, because we want to see which clients or devices are connected to it. This time, we will not need the --write option, so we are just going to remove it. After completion the run process of airodump-ng, we are going to disconnect the device with STATION A8:7D:12:30:E9:A4 using the airoplay-ng.

Syntax

Deauthenticate the wireless client

After executing this command, the device whose STATION is A8:7D:12:30, lost the internet connection. We can only connect to the network again when we quit this executing command by pressing Ctrl + C.

Deauthenticate the wireless client

Where

  • -deauth is used to tell airplay-ng that we want to run a deauthentication attack and assign 100000 which is the number of packets so that it keeps sending a deauthentication packets to both the router and client and keep the client disconnected.
  • -a is used to specify the MAC address of the router. 50:C8:E5:AF:F6:33 is the target access point.
  • -c specifies the MAC address of the client. A8:7D:12:30:E9:A4 is client's MAC address.
  • wlan0 is the wireless adaptor in Monitor mode.
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