<network>
  <name>default</name>
  <bridge name="virbr0"/>
  <forward mode='nat'>
    <nat ipv6='yes'>
      <port start='500' end='1000'/>
    </nat>
  </forward>
  <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>
  <ip address="192.168.128.1" netmask="255.255.255.0"/>
  <ip family="ipv6" address="2001:db8:ca2:2::1" prefix="64" >
    <dhcp>
      <range start="2001:db8:ca2:2:1::10" end="2001:db8:ca2:2:1::ff" />
    </dhcp>
  </ip>
</network>