Enable Monitor Mode for WiFi Adapter

Monitor mode or RFMON (Radio Frequency Monitor) mode, enables a device with a wireless network interface controller to monitor all traffic received from the wireless network.

 

RFMON mode is not really a wireless mode but it is especially important in attacking wireless networks. In a nutshell, it allows a wireless card to “monitor” the packets that are received without any filtering.

• Open Terminal or Terminator.
• Type, ifconfig and get the name of the wireless adapter. Example: wlan0
• Turn down your wireless adapter using the following code. 
• Syntax: ifconfig <adapter_name> down
• Example: ifconfig wlan0 down
• Type, airmon-ng check kill (This will kill all the interfaces which could interfere with our result).
  
• Changing mode from Managed to Monitor:
• Syntax: iwconfig <adapter_name> mode monitor
• Example: iwconfig wlan0 mode monitor
• Turning the wireless adapter up.
• Syntax: ifconfig <adapter_name> up
• Example: ifconfig wlan0 up

You can change Wi-Fi Adapter back to normal by following the same steps. Only change the second step from mode monitor to mode managed.

Video Tutorial

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