Difference between revisions of "WPA supplicant"
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==Usage== | ==Usage== | ||
Revision as of 11:59, 1 December 2010
When dealing with "strong" encryption of WiFi networks, you have to setup a WPA or WPA2 configuration. To handle the requirements of these protocols during association, a userspace daemon is needed: it is called a WPA supplicant. The most used one on Linux is wpa_supplicant; we will see here how to install and configure it.
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Note: wpa_supplicant is also able to handle WEP connections |
Contents
Installation
$ make menuconfig
Package Selection for the target --->
Networking --->
[*] wpa_supplicant
[ ] Enable WPA with EAP
[*] Install wpa_cli binary
[ ] Install wpa_passphrase binary
EAP is only needed if you plan to use WPA in Enterprise mode == with a Radius server.
Usage
wpa_supplicant needs a configuration file in /etc/wpa_supplicant.conf. Here is an example:
ctrl_interface=/var/run/wpa_supplicant
ctrl_interface_group=wheel
network={
ssid="SSID"
scan_ssid=1
proto=WPA
key_mgmt=WPA-PSK
pairwise=TKIP
psk="PASSPHRASE"
}
Then you can create the Wifi connexion with WPA Supplicant:
ifconfig iwlan0 up # wpa_supplicant -iwlan0 -c /etc/wpa_supplicant.conf -Dwext -B dhclient
Stop it
To stop WPA Supplicant daemon and switch off the connexion, you can use this command:
wpa_cli terminate
