isan

I know only one which employs an interrupt https://github.com/WereCatf/WiringOP
I use it

edit :   /etc/network/interfaces
 
# start ###   # 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 dhcp   # Static IP address auto eth0      # ou auto enp0s7 (see  ifconfig) iface eth0 inet static         address 192.168.25.3         netmask 255.255.255.0         gateway 192.168.25.1   # end ###   and change :   /etc/resolv.conf   domain domain.name search domain.name nameserver 8.8.8.8 nameserver 8.8.4.4   # for your preference      

If these are the whole contents then maybe just an 'auto eth0' after 'iface lo inet loopback' is missing?