Router Charts

Click for Router Charts

Router Ranker

Click for Router Ranker

NAS Charts

Click for NAS Charts

NAS Ranker

Click for NAS Ranker

More Tools

Click for More Tools

Wireless How To

Step 2 - Set Card to Monitor Mode

As mentioned earlier, the WLAN card you use must be capable of being put into "monitor" mode. This means that it can capture all packets it detects and not just the ones intended for its MAC address. This is similar to an Ethernet card being put into promiscuous mode, which is required for packet sniffers / analyzers such as Wireshark (Ethereal) or OmniPeek Personal.

We'll use the airmon-ng script to put the card into monitor mode. First just type:


to check the adapter status. Then:

airmon-ng stop ath0

to stop the interface. Then type:

airmon-ng start wifi0

to restart the adapter in monitor mode.

Note that you use wifi0, not ath0 in the start command. This has to do with the way that the Atheros madwifi driver works. The sequence and resulting output from each command line are shown in Figure 2.

airmon-ng command output
Click to enlarge image

Figure 2: airmon-ng command output

You can check that monitor mode is enabled by entering the iwconfig command. Figure 3 shows the result, which confirms that the adapter is in monitor mode and ready to go.

Atheros adapter in monitor mode

Figure 3: Atheros adapter in monitor mode

More Wireless

Featured Sponsors

Top Ranked Routers




Support Us!

If you like what we do and want to thank us, just buy something on Amazon. We'll get a small commission on anything you buy. Thanks!

Over In The Forums

Hi, I have a 2 story home and am encountering poor wireless performance and dropouts on the first floor. I have an ASUS RT-AC66R on the second floor c...
Opening the WRT3200 case:1. Just like the WRT1900AC V2 the WRT3200ACM TTL port is located in the front of the unit. So only the two screws in the fron...
I recently purchased and installed a new modem, an Arris SB6183-RB. I went through the install with my provider and got everything enabled and set to ...
QTS 4.2.2 Build 20161021[Known issue]Back up- The Container Station folder can only be backed up using Rsync when no containers are running. It is rec...
Hi all,I am trying, unsuccessfully, to route all traffic from one of my guest networks. I thought I'd copy the routing that Merlin used for the TOR se...

Don't Miss These

  • 1
  • 2
  • 3