libvirt-netconfig

<network connections='2'>
  <name>default</name>
  <uuid>8ccb7547-9ba5-446b-b591-d1185f602e05</uuid>
  <!-- forward mode was originally set to 'nat' -->
  <forward mode='route'/>
  <bridge name='virbr0' stp='on' delay='0'/>
  <mac address='52:54:00:f8:50:5d'/>
  <ip address='192.168.122.1' netmask='255.255.255.0'>
    <dhcp>
      <range start='192.168.122.2' end='192.168.122.254'/>
    </dhcp>
  </ip>
</network>