You can configure a network interface from the command line using the basic Linux networking utilities. You configure your network client hosts either with commands to change your current settings or by editing a number of system files. Two commands,
route, are used for network configuration. The
netstat command displays information about the network connections.
ifconfig is used to configure your network interface. You can use it to do the following:
Activate or deactivate your NIC or change your NIC’s mode
Change your machine’s IP address, netmask, or broadcast address ...