IP/MAC Address Finder

IP/MAC Address Finder provides visibility into how WhatsUp Gold identified or 'sighted' a resource showing a particular hardware (MAC) or network (IP) address. You can use it for gaining insight on how WhatsUp Gold Discovery came to identify the device on your network.

Tip: IP/MAC Address Finder can be a powerful diagnostic tool for scenarios of MAC address spoofing, stale ARP cache detection, and so on.

To find an IP by way of its MAC or IP address:

• IP Address. Enter the IP address used by a network interface on the device. Leave blank if you are scanning for a MAC address.
  --or--
  Click Select to select a device, in the Select Devices dialog, and choose from already added or discovered devices.

  Note: The IP/MAC Finder tool does not support IPv6 addresses.

• MAC Address. Enter The MAC address (for the network interface card) for which you are scanning the network.
• Use Network Devices Only.
  Select to display the IP/MAC sightings found only on network device types (routers and switches, for example).
  --or--
  Clear (leave unselected) to display all IP/MAC sightings found on all device types.
• Find/Clear. Click to return/clear result records ('sightings') of the IP or MAC returned from network resources.
  • Device. Name of the network device.
  • IP Address. Last known IP of the device that reported the results record.
  • Interface Name. Lists the network interface that is routing or forwarding traffic to the IP or MAC address.
  • Is Linked To. Lists the network devices to which the device is linked.
  • Sighting Type. Lists where the information was seen, such as an ARP cache, a forwarding database, or the device itself.