You can enable the ARP snooping, DHCP snooping, or VM Tools to create a custom IP Discovery switching profile that learns the IP and MAC addresses to ensure the IP integrity of a logical switch. The VM Tools IP discovery method is available for ESXi-hosted VMs only.

Prerequisites

Familiarize yourself with the IP Discovery switching profile concept. See Understanding IP Discovery Switching Profile.

Procedure

  1. From your browser, log in with admin privileges to an NSX Manager at https://nsx-manager-ip-address.
  2. Select Networking > Switching from the navigation panel.
  3. Click the Switching Profiles tab.
  4. Click Add and select IP Discovering.
  5. Complete the IP Discovery switching profile details.
    Option Description
    Name and Description Enter a name and optionally a description.
    ARP Snooping

    Toggle the ARP Snooping button to enable the feature.

    ARP snooping inspects the VM outgoing ARP and GARP to learn the VM MAC and IP addresses. ARP snooping is applicable if the VM uses a static IP address instead of DHCP.

    ARP Binding Limit Specify an ARP binding limit from 1 to 128.
    DHCP Snooping

    Toggle the DHCP Snooping button to enable the feature.

    DHCP snooping inspects the DHCP packets exchanged between the VM DHCP client and the DHCP server, to learn the VM MAC and IP addresses.

    VM Tools

    Toggle the VM Tools button to enable the feature. This option is available for ESXi-hosted VMs only.

    VM Tools is software that runs on an ESXi-hosted VM and can provide the VM's MAC and IP addresses.

  6. Click Save.

Results

A custom IP Discovery switching profile appears as a link.

What to do next

Attach this IP Discovery customized switching profile to a logical switch or logical port so that the modified parameters in the switching profile are applied to the network traffic. See Associate a Custom Profile with a Logical Switch or Associate a Custom Profile with a Logical Port.