How to remote packet capture DNS requests / responses on MikroTik RouterOS

In order to packet capture just DNS packets using Tools -> Packet Sniffer, use the following settings:

  • IP protocol: Select udp (17 (udp))
  • Port: Enter 53 (53 (dns))

Note that this does not capture DNS-over-HTTPS traffic, but at the time of writing this article, this type of traffic is rare.