<network>
  <name>netboot</name>
  <uuid>81ff0d90-c91e-6742-64da-4a736edb9a9b</uuid>
  <bridge name="virbr1" stp='off' delay='1'/>
  <domain name="example.com"/>
  <forward/>
  <ip address="192.168.122.1" netmask="255.255.255.0">
    <tftp root="/var/lib/tftproot" />
    <dhcp>
      <range start="192.168.122.2" end="192.168.122.254" />
      <bootp file="pxeboot.img" />
    </dhcp>
  </ip>
</network>