Wireless

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Bringing up Wireless Interface

The wireless interface (most commonly wlan0) can be brought up with:

ifconfig <interface> up


Wireless Bringup on Boot

The wireless interface bring-up behaviour can be configured within /etc/network/interfaces.d.


Connecting to Networks (wpa_supplicant)

A network connection can be established by starting the wpa_supplicant daemon. The WPA supplicant requires a configuration file with a list of network configurations to use for connection.

$ wpa_supplicant -B -Dnl80211 -iwlan1 -c/etc/wpa_supplicant.conf
Successfully initialized wpa_supplicant

Checking Network Connection

iw dev <interface> link

If connected to a network the output will show the details of the connection:

$ iw dev wlan0 link
Connected to 12:34:56:78:9a:bc (on wlan0)
	SSID: MyNetwork
	freq: 2412
	RX: 33016518 bytes (152703 packets)
	TX: 2024638 bytes (11477 packets)
	signal: -53 dBm
	tx bitrate: 150.0 MBit/s MCS 7 40MHz short GI

	bss flags:	short-preamble short-slot-time
	dtim period:	1
	beacon int:	100


$ iw dev wlan0 link
Not connected.

Getting an IP Address (dhclient)

dhclient <interface>