network:
  version: 2
  renderer: networkd
  ethernets:
    enp1s0:
      optional: true
      accept-ra: false
      dhcp4: false
      addresses: [ 198.19.5.18/27, 2001:678:d78:50b::12/64 ]
      gateway4: 198.19.5.1
      gateway6: 2001:678:d78:50b::1