Hardware Reference
In-Depth Information
Preparing Kismet for launch
When a Wi-Fi adapter enters monitor mode, it means that it's not associated with
any particular access point and is just listening for any Wi-Fi traffic that happens to
whizz by in the air. On Raspbian, however, there are utility applications running in
the background that try to automatically associate your adapter with Wi-Fi networks.
We'll have to temporarily disable two of these helper applications to stop them from
interfering with the adapter while Kismet is running.
1.
Open up
/etc/network/interfaces
for editing:
pi@raspberrypi ~ $ sudo nano /etc/network/interfaces
2.
Find the block that starts with
allow-hotplug wlan0
and put a
#
character
in front of each line, like we've done here:
#allow-hotplug wlan0
#iface wlan0 inet manual
#wpa-roam /etc/wpa_supplicant/wpa_supplicant.conf
#iface default inet dhcp
Press
Ctrl
+
X
to exit and select
y
when prompted to save the modified buffer,
then press the
Enter
key to confirm the filename to write to. This will prevent
the
wpa_supplicant
utility from interfering with Kismet.
3.
Next, open up
/etc/default/ifplugd
for editing:
pi@raspberrypi ~ $ sudo nano /etc/default/ifplugd
4.
Find the line that says
INTERFACES
and change it from
auto
to
eth0
, then
find the line that says
HOTPLUG_INTERFACES
and change it from
"all"
to
""
,
as we've done here:
INTERFACES="eth0"
HOTPLUG_INTERFACES=""
This will prevent the
ifplugd
utility from interfering with Kismet.
5.
Now, reboot your Pi. Once logged back in, you can verify that your adapter
has not associated with any access points, by using the following command:
pi@raspberrypi ~ $ iwconfig
Wi-Fi adapter showing no associated access point
