<filter name='no-arp-mac-spoofing' chain='arp-mac' priority='-520'>
  <uuid>bc06ede7-a465-4d74-9fe6-dd460720a107</uuid>
  <rule action='return' direction='out' priority='350'>
    <arp arpsrcmacaddr='$MAC'/>
  </rule>
  <rule action='drop' direction='out' priority='1000'/>
</filter>

