NetworkManager is the defacto network connection system for many linux distributions. NetworkManager supports mobile phone, wireless, and wired connections. NetworkManager is intended to make configuring, and connecting easy.
disable wicd, wpa_supplicant, net.ethX, & net.wlanX and dhcpcd prior to starting network manager.
root # emerge networkmanager root # rc-update add NetworkManager root # rc
Any users besides root will need to be added to the plugdev group:
root # gpasswd -a $USER plugdev
If you're experiencing troubles, loosing connection after a 45-second timeout with NetworkManager and dhcpcd, consider moving to dhclient (net-misc/dhcp) - NetworkManager is designed for use with dhclient and have less (~0) problems with it.
as of right now 17:52, April 12, 2015 (UTC) nmtui's not suitable for wifi configurations because it will not save pass phrases
root # nmtui
sessions for users may need ck-launch-session in .xinitrc to use nm-applet, or have sessions launched from a display manager.
root # emerge nm-applet
root # emerge plasma-nm
To list visible access points:
root # nmcli dev wifi list * SSID MODE CHAN RATE SIGNAL BARS SECURITY derp1 Infra 6 54 Mbit/s 30 ▂___ WPA2 derp2 Infra 7 54 Mbit/s 29 ▂___ WPA2 derp3 Infra 1 54 Mbit/s 27 ▂___ WPA1 WPA2 * connectedap Infra 1 54 Mbit/s 52 ▂▄__ WPA1 WPA2
To set a wpa pre shared key passphrase:
root # nmcli con modify derp1 wifi-sec.key-mgmt wpa-psk root # nmcli con modify derp1 wifi-sec.psk yourpassphrase