i'm continously working on adding more information. trying to achieve some kind of cheat sheet for debugging wireless connections from the shell, especially for LEDE devices.
ifconfig lists the network interface. unfortunately it does not provide any physical properties like the theoretical network speed or the MCS index:
iw is the configuration utitlity for wireless devices.
list phy or dev interfaces:
iw phy iw dev
list current information such as theoretical network speed, MCS index, signal quality, SNR and more. replace
wlan2 with the name of your network:
iw dev wlan2
scan manually for interfaces:
iwlist wlan2 scan
LEDE uses a script called wifi. this script is run after starting the device and enables the
wpa_supplicant daemons which connect to the configured wifi networks:
wifi up wifi down
connecting manually to an access point (no password)
wifi down iwconfig wlan2 essid $SSID ifconfig wlan2 up ifconfig wlan2 192.168.100.1 netmask 255.255.255.0
more information about connecting manually: askubuntu: How to connect and disconnect.
is a supplicant which handles network authentication
more information about wpa_supplicant
is a userspace daemon which enables wireless access points and authentication.
work in progress