WPA_SUPPLICANT(8) FreeBSD System Manager's Manual WPA_SUPPLICANT(8)


wpa_supplicantWPA/802.11i Supplicant for wireless network devices


wpa_supplicant [ -BdhKLqstuvW][ -b br_ifname] -c config-file [ -C ctrl][ -D driver][ -f debug file][ -g global ctrl] -i ifname [ -o override driver][ -O override ctrl][ -P pid file][ -N -i ifname -c config-file [ -C ctrl][ -D -driver][ -p driver_param][ -b br_ifname] ...]


The wpa_supplicant utility is an implementation of the WPA Supplicant component, i.e., the part that runs in the client stations. It implements WPA key negotiation with a WPA Authenticator and EAP authentication with an Authentication Server. In addition, wpa_supplicant controls the roaming and IEEE 802.11 authentication/association support of the wlan(4) module and can be used to configure static WEP keys based on identified networks.

The wpa_supplicant utility is designed to be a “daemon” program that runs in the background and acts as the backend component controlling the wireless connection. It supports separate frontend programs such as the text-based wpa_cli(8) program.

The following arguments must be specified on the command line:

-i ifname
Use the specified wireless interface.
-c config-file
Use the settings in the specified configuration file when managing the wireless interface. See wpa_supplicant.conf(5) for a description of the configuration file syntax and contents.

Changes to the configuration file can be reloaded by sending a SIGHUP to the wpa_supplicant process or with the wpa_cli(8) utility, using “ wpa_cli reconfigure”.


The following options are available:
Optional bridge interface name.
Detach from the controlling terminal and run as a daemon process in the background.
Enable debugging messages. If this option is supplied twice, more verbose messages are displayed.
Driver name (can be multiple drivers: nl80211,wext).
Log output to debug file instead of stdout.
Global ctrl_interface.
Show help text.
Include key information in debugging output.
Display the license for this program on the terminal and exit.
Start describing a new interface.
Overrides driver parameter for new interfaces.
Override ctrl_interface parameter for new interfaces.
Specify driver parameters.
File in which to save the process PID.
Decrease debugging verbosity (i.e., counteract the use of the -d flag).
Send log messages through syslog(3) instead of to the terminal.
Include timestamp in debug messages.
Enable DBus control interface.
Display version information on the terminal and exit.
Wait for a control interface monitor before starting.


The wpa_supplicant utility first appeared in FreeBSD 6.0.


The wpa_supplicant utility was written by Jouni Malinen <j@w1.fi>. This manual page is derived from the README file included in the wpa_supplicant distribution.
November 7, 2012 FreeBSD