Static IP on Linux
If you want your router to assign a static IP on a specific Linux Machice you just have to edit /etc/network/interfaces to look like below.
# This file describes the network interfaces available on your system # and how to activate them. For more information, see interfaces(5). # The loopback network interface auto lo iface lo inet loopback # The primary network interface allow-hotplug eth0 iface eth0 inet static address 192.168.1.120 # The static IP netmask 255.255.255.0 broadcast 184.108.40.206 gateway 192.168.1.1