Connecting to WiFi network using systemd and wpa-supplicant

Connecting to WiFi network on VisionSOM-STM32MP1

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In order to connect to the WiFi network a proper configuration needs to be provided. This tutorial shows how to do this using the wpa_supplicant tool.

First, open the /etc/wpa_supplicant.conf file and provide the network configuration:

ctrl_interface=/var/run/wpa_supplicant
ctrl_interface_group=0
update_config=1

network={
  ssid="<NETWORK_SSID>"
  psk="<NETWORK_PASSWORD>"
  key_mgmt=WPA-PSK
  proto=WPA2
  pairwise=CCMP TKIP
  group=CCMP TKIP
  scan_ssid=1
}

The network in the example is protected with the WPA2 standard and requires a password. The <NETWORK_SSID> and <NETWORK_PASSWORD> fields need to be changed according to the existing network configuration.

Create the /etc/network/interfaces file and configure the wlan0 interface with the DHCP client:

auto wlan0
iface wlan0 inet dhcp
	wireless_mode managed
	wireless_essid any
	wpa-driver nl80211
	wpa-conf /etc/wpa_supplicant.conf

Enable the wlan0 interface by calling:

ifup wlan0

and check the interface status:

ip a

The wireless network (wlan0) should now be enabled and configured:

3: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
	link/ether a0:cc:2b:2c:6b:8d brd ff:ff:ff:ff:ff:ff
	inet 192.168.43.234/24 brd 192.168.43.255 scope global wlan0
	   valid_lft forever preferred_lft forever
	inet6 2a00:f41:581c:fc61:a2cc:2bff:fe2c:6b8d/64 scope global dynamic mngtmpaddr 
	   valid_lft 3574sec preferred_lft 3574sec
	inet6 fe80::a2cc:2bff:fe2c:6b8d/64 scope link 
	   valid_lft forever preferred_lft forever