https://superuser.com/questions/764986/howto-setup-a-veth-virtual-network
https://unix.stackexchange.com/questions/152331/how-can-i-create-a-virtual-ethernet-interface-on-a-machine-without-a-physical-ad
https://superuser.com/questions/764986/howto-setup-a-veth-virtual-network
https://unix.stackexchange.com/questions/152331/how-can-i-create-a-virtual-ethernet-interface-on-a-machine-without-a-physical-ad