<filter name='allow-dhcp-server' chain='ipv4' priority='-700'>
  <uuid>47a21785-ddc7-4f6d-8258-b9788f971ade</uuid>
  <rule action='accept' direction='out' priority='100'>
    <ip srcipaddr='0.0.0.0' dstipaddr='255.255.255.255' protocol='udp' srcportstart='68' dstportstart='67'/>
  </rule>
  <rule action='accept' direction='in' priority='100'>
    <ip srcipaddr='$DHCPSERVER' protocol='udp' srcportstart='67' dstportstart='68'/>
  </rule>
</filter>

