Wifi adapter packet injection test


Questions about if a certain Wifi adapter is compatible with the Aircrack-ng suite or what Wifi card is capable of packet injection and operating monitoring mode are commonly asked at discussion boards and social media. A Wifi adapter that is capable of packet injection and monitoring mode is trivial and important functionality to be successful in Wifi hacking. Wireless packet injection is spoofing packets on a network to appear as if they are part of the regular network communication stream. Packet injection allows to intercept, disrupt and manipulate network communication. An example of this is sending a deauthentication message from an unknown party outside the network to a connected client as if it was send by the wireless router. This will result in the client disconnecting from the router. Monitoring mode is one of the six modes a Wifi card can operate in which allows you to capture network packets without having to associate with the access point.

If you are looking to buy a Wifi card which is capable of packet injection using the Aircrack-NG suite you can have a look at the following list with supported Wifi adapters:


Wifi adapter packet injection test

Performing an Wifi adapter packet injection test to see whether your Wifi adapter is capable of injection can be done easily with Aireplay-ng. Aireplay-ng is great tool to generate traffic for cracking WEP and WPA keys. Another great feature is the Deauthentication option which we have used a lot through the Wifi hacking tutorials like:

First we need to put the Wifi adapter in Monitoring mode using the following command:

airmon-ng start wlan0

For anyone getting errors in Kali Linux 2.0: read this post

If necessary kill the processes Kali is complaining about:

Testing if your Wifi adapter support packet injection can be done using the following command:

aireplay-ng –test wlan0mon

Packet Injection is working for this card!

In Kali Linux ‘iwconfig’ will show you the operating mode of your Wifi card:

Wifi adapter packet injection video tutorial

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  1. When I run the test I’m getting ;

    Invalid tods filter. [0,1]

    Is this the tell tale sign that my card is unsupported?

  2. Hi,

    If I have that, I can’t do injection and crack wifi, isn’t it ? :(

    root@parrot:~# airmon-ng start wlan0

    PHY Interface Driver Chipset

    phy0 wlan0mon iwlwifi Intel Corporation Wireless 7265 (rev 59)

    root@parrot:~# aireplay-ng –test wlan0mon
    09:51:38 Trying broadcast probe requests…
    09:51:40 No Answer…
    09:51:40 Found 0 APs

    Thank you


    • Mir Rahed Uddin on

      Same problem . my Wi-Fi driver Qualcomm Atheros QCA9377 .when I try aireplay-ng –test wlp1s0 it gives no answer found 0 APs

  3. very informative, i appreciate your patients.It must be very difficult for a man of your vast knowledge to break down the information so students such as i, a mere mortal can understand. who would of ever thought that the word processor would change a double hyphen back to a single.so much to learn and as a mortal i only have a lifetime to learn it.

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