# The primary network interface
allow-hotplug eth1
iface eth1 inet static
        address 201.220.222.123
        netmask 255.255.255.240
        network 201.220.222.112
        broadcast 201.220.222.127
        gateway 201.220.222.113
        # dns-* options are implemented by the resolvconf package, if installed
        dns-nameservers 201.220.222.131 201.220.222.132
        dns-search sld.cu

iface eth0 inet static
        address 192.168.0.1
        netmask 255.255.255.0
        network 192.168.0.0
        broadcast 192.168.0.255
        gateway 201.220.222.123