To use NetworkManager for your network connections:
1. Disable any previous network scripts in rc.conf (except for loopback)
2. Add networkmanager *after* dbus
3. Create your network configuration files in:
/etc/NetworkManager/system-connections
The syntax is described here:
https://projects.gnome.org/NetworkManager/developers/api/09/ref-settings.html
and here:
https://developer.gnome.org/NetworkManager/unstable/ref-settings.html
The post-install script creates a sample config for each of your interfaces.
Note: To use networkmanager for wifi connections you must compile
wpa_supplicant with DBUS support.
At the time of writing, the port in opt doesn't have it.
See this feature request to find out more:
http://crux.nu/bugs/index.php?do=details&task_id=957
