source /etc/network/interfaces.d/*

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
allow-hotplug eth0
iface eth0 inet dhcp

auto eth1
iface eth1 inet static
        address 192.168.56.12
        netmask 255.255.255.0
        gateway 192.168.56.1
        
allow-hotplug eth2
iface eth2 inet static
        address 10.240.100.101
        netmask 255.255.255.0
        network 10.240.100.0
        broadcast 10.240.100.255
        gateway 10.240.100.250
        # dns-* options are implemented by the resolvconf package, if installed
        dns-search localdomain
        dns-nameservers 8.8.8.8 8.8.4.4