The MAC Address Discovery tool can discover the MAC addresses, hardware manufacturer, IP address, and host names of the devices connected to your local subnets.
To discover the MAC addresses of devices connected to remote subnets, either run the tool on a laptop you can plug into the remote subnets or consider using Network Sonar and the Switch Port Mapper. See Network Sonar and Deprecated Switch Port Mapper.
- From the Local Subnet list, select the local subnet.
If your computer is attached to one subnet, only one choice is provided in the list.
- Click Discover MAC Addresses.