Add a Downlink Port on a Tier-1 Logical Router in Manager Mode

When you create a downlink port on a tier-1 logical router, the port serves as a default gateway for the VMs that are in the same subnet.

Prerequisites

• Verify that a tier-1 logical router is configured. See Create a Tier-1 Logical Router in Manager Mode.

• Verify that Manager mode is selected in the NSX Manager user interface. See NSX Manager. If you do not see the Policy and Manager mode buttons, see Configure User Interface Settings.

Procedure

1. From your browser, log in with admin privileges to an NSX Manager at https://<nsx-manager-ip-address>.
2. Select Networking > Tier-1 Logical Routers.
3. Click the name of a tier-1 router.
4. Click the Configuration tab and select Router Ports.
5. Click Add.
6. Enter a name for the router port and optionally a description.
7. In the Type field, select Downlink.
8. For URPF Mode, select Strict or None.
   URPF (unicast Reverse Path Forwarding) is a security feature.
9. (Optional) Select a logical switch.
10. Select whether this attachment creates a switch port or updates an existing switch port.
    If the attachment is for an existing switch port, select the port from the drop-down menu.
11. Enter an IP address and a prefix length for the router port.
12. (Optional) Select a DHCP relay service.
13. Click Add.

What to do next

Enable route advertisement to provide North-South connectivity between VMs and external physical networks or between different tier-1 logical routers that are connected to the same tier-0 logical router. See Configure Route Advertisement on a Tier-1 Logical Router in Manager Mode.