Difference between revisions of "WPA supplicant"
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==Usage== | ==Usage== | ||
wpa_supplicant needs a configuration file in ''/etc/wpa_supplicant.conf''. | wpa_supplicant needs a configuration file in ''/etc/wpa_supplicant.conf''. | ||
| − | Here is an example (WPA pre-shared key (TKIP)): | + | Here is an example (WPA pre-shared key (TKIP)) and for your convience a generic wpa_supplicant.conf is already installed in the Armadeus BSP for releases > 5.2 : |
<pre class="host"> | <pre class="host"> | ||
| − | + | ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=wheel | |
| − | + | update_config=1 | |
| − | + | network={ | |
| − | + | ssid="''SSID''" | |
| − | + | scan_ssid=1 | |
| − | + | proto=WPA | |
| − | + | key_mgmt=WPA-PSK | |
| − | + | pairwise=TKIP | |
| − | + | psk="''PASSPHRASE''" | |
| − | + | } | |
| − | + | ||
</pre> | </pre> | ||
Revision as of 12:51, 7 March 2013
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.
 |
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 (WPA pre-shared key (TKIP)) and for your convience a generic wpa_supplicant.conf is already installed in the Armadeus BSP for releases > 5.2 :
ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=wheel
update_config=1
network={
ssid="''SSID''"
scan_ssid=1
proto=WPA
key_mgmt=WPA-PSK
pairwise=TKIP
psk="''PASSPHRASE''"
}
Then you can create the Wi-Fi connection with WPA Supplicant:
# ifconfig wlan0 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
