wpa_supplicant - bunnyamin/bunnix GitHub Wiki

Configuration

  • SystemD

  • If a network is hidden and the interface has to automatically connect to it then the section network must have scan_ssid=1.

Note

Observed in Zsh. If password contains \x or $x then wpa_passphrase will interpret \x as escaped and $x as a variable and print its value. Escape all special characters, that is, \\x and $x`.

CLI

wpa_supplicant -B -D nl80211,wext -i <device> -c <(wpa_passphrase "SSID" "key")

  • -B run daemon in the background
  • -D driver name (can be multiple drivers: nl80211,wext)
  • -i interface name
  • -c configuration file
Event Error Cause Remedy
Failed to connect to non-global ctrl_ifname: wlp0s0 error: No such file or directory Add ctrl_interface=/var/run/wpa_supplicant in the beginning of the /etc/wpa_supplicant/default.conf.
Connected to AP No Internet access The problem may be that no DHCP server is not assigned or the firewall is blocking connections If DHCP and firewall are correctly configured, the problem can resolve by itself. For example, wait a couple of hours and, or restart server, computer a couple of times.

Try stop, hangs, then force reboot PC, after which it works... Cache, emptying?

AP

WPA supplicant can serve as an access point.

#ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=wheel
ctrl_interface=/run/wpa_supplicant

# Enable changes from wpa_cli, wpa_gui.
update_config=0

country=US
network={
  ssid="testAP"
  mode=2
  key_mgmt=WPA-PSK
  psk="test123456789"
  frequency=5765
}

Debug, error, troubleshooting

wlp0s0_ap: EAPOL-4WAY-HS-COMPLETED a1:b2:c3:d4:e5:f6
wlp0s0_ap: AP-STA-DISCONNECTED a1:b2:c3:d4:e5:f6
wlp0s0_ap: AP-STA-CONNECTED a1:b2:c3:d4:e5:f6
wlp0s0_ap: EAPOL-4WAY-HS-COMPLETED a1:b2:c3:d4:e5:f6
wlp0s0_ap: AP-STA-DISCONNECTED a1:b2:c3:d4:e5:f6
wlp0s0_ap: AP-STA-CONNECTED a1:b2:c3:d4:e5:f6
wlp0s0_ap: EAPOL-4WAY-HS-COMPLETED a1:b2:c3:d4:e5:f6
wlp0s0_ap: AP-STA-DISCONNECTED a1:b2:c3:d4:e5:f6
wlp0s0_ap: AP-STA-CONNECTED a1:b2:c3:d4:e5:f6
wlp0s0_ap: EAPOL-4WAY-HS-COMPLETED a1:b2:c3:d4:e5:f6

Possible cause: low power

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