WPA supplicant

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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.

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.

# wpa_supplicant -iwlan0 -c/etc/wpa_supplicant.conf -B

Links

• wpa_supplicant README
• wpa_supplicant Webpage