It can be very tiresome when your network dump tool shows 'No such device' when trying to monitor wireless traffic. There are various reasons why your monitoring tools are not working, though usually this is because of a mon0 or monitor interface is not correctly configured. This article will explain how to troubleshoot 'No such device' error on Airodump-ng with Mon0 interface.
Preparation
Before you start, you should have Airodump-ng ( a wireless packet capture program) installed and configured. It's best to choose a Linux distribution like Kali or Ubuntu for your setup environment. Also, you should have cmake, libpcap and airmon-ng (a wireless interface setup) installed.
Step by Step Solution
Step 1. Ensure that you can see the networks correctly
Run the command: airmon-ng
The output of this command should show your wireless network interfaces with the wlan0:. If not, make sure that the wireless adapter is plugged in and that it is supported by the Linux distribution you are using.
Step 2. Start the process of determining the error
Run the command: airmon-ng start <interface>
This command should bring your interface up in monitor mode. If it doesn't, you will need to troubleshoot your wireless interface by checking/changing the driver and setting up the wireless device properly. Make sure your wireless card supports monitor mode.
Step 3. Check if your wireless interface is associated with an interface
Run the command: iwconfig
If you see a new interface mon0, it means your wireless interface is associated with the mon0 interface and ready to go.
Step 4. Troubleshoot the ‘No such device’ error with mon0
Run the command: airodump-ng --bssid <MAC of network you’d like to monitor> --channel <channel of network you’d like to monitor> mon0
If you are still getting errors, run the command: ifconfig
Check if the mon0 interface exist in the output. If not, make sure to check your configuration steps and that the interface is correctly running in monitor mode.
FAQs
Q1. My network dumps do not show any information?
If your network dumps do not show any information, the most likely cause is that your configuration is incorrect. Make sure that your mon0 interface is correctly configured and running in monitor mode and that you are dumping the right networks.
Q2. Does airmon-ng work on Windows too?
Airmon-ng only works on Linux-based systems. If you want to use it on Windows, you will need to use a virtual machine.
Q3. How to make sure my wireless card supports monitor mode?
To make sure that your wireless card supports monitor mode, run the command airmon-ng and check if your card is in the list.
Q4. How to make sure my wireless interface is associated with the mon0?
Run the command iwconfig and check if the mon0 interface is present in the output. If yes, your wireless interface is associated with mon0.
Q5. What is the best way to troubleshoot 'No such device' error?
The best way to troubleshoot 'No such device' error is to make sure your configuration steps are followed correctly and your wireless device is properly setup for monitor mode. Also, run the commands airmon-ng and ifconfig to ensure that the mon0 is present in the output.
Resources:
Circumventing wireless network threats with airmon-ng
Monitor mode – Wikipedia
Airodump-ng – Online Manual for Linux Tools