Add the Edge interfaces from which you want the DHCP requests to be relayed to the external DHCP relay servers. Procedure In the vSphere Web Client, navigate to Networking & Security > NSX Edges. Double-click an NSX Edge. Click Manage > DHCP > Relay. In the DHCP Relay Agent area, click Add. In vNIC, ensure that an internal vNIC is selected. The Gateway IP Address displays the primary IP address of the selected vNIC. Click Add or OK. Parent topic: Configuring DHCP Relay