NSX-T : How to configure a Gateway Firewall

  • Gateway firewall represents rules applied at the perimeter firewall.
  • Login to NSX Manager and select “Security” from Top Menu.
  • Select “Gateway Firewall” from the left side Menu.
  • Click on “Gateway Specific Rules“.
  • Select the respective Tier 0/Tier 1 router from field “Gateway“.
  • Click on “ADD POLICY” to add the gateway firewall policy.
  • Change the Name of the Policy as per your need.
  • Click on 3 dots on the newly created Policy and click “Add Rules” to create rules under the policy.
  • Fill in the “source, destinations, services, profiles and applied to” fields.
  • Choose “Allow, Drop or Reject” option under Action field.
  • Now click on “PUBLISH” button on the top right corner.
  • Rules will now be active.
  • Multiple rules can be added and then published together at one time.