title: Persisting arptables on Ubuntu 18
body: <p>I am using Ubuntu 18 with UFW as the basic firewall.</p>
  <p>I need to restrict some ARP traffic from the box, and I can that by using the following arptables command:</p>
  <pre><code>sudo arptables -I OUTPUT --source-mac source-mac-here --destination-mac destination-mac-here -j DROP
  </code></pre>
  <p>However, when I reboot the machine the arptables entries are lost.</p>
  <p>How can I persist the arptable entries across a reboot?
  I need this to work with the existing UFW config.</p>
  <p>Thanks</p>