[[https://codingpackets.com/blog/cisco-csr-1000v-vagrant-libvirt-box-install]]

NOTES:\\
Be sure you have 'virtio' as interface type and you use the mac generation algo:
  node.vm.provider :libvirt do |domain|
    domain.nic_model_type = "virtio"
  node.vm.network :private_network,
    :mac => "#{get_mac_cisco()}",