<network>
  <name>default</name>
  <bridge name="virbr%d" />
  <forward/>
  <ip address="::virt.network::.::virt.host::" netmask="::virt.netmask::">
    <dhcp>
      <range start="::virt.network::.::virt.dhcp_start::" end="::virt.network::.::virt.dhcp_end::" />
    </dhcp>
  </ip>
</network>
