How to find the MAC address of a PC or device on the LAN

In the following, I’ll show you how to locate the
MAC address of any
computer or PC connected to your network.

Note: This process will only work for computers on the same subnet as the
computer doing the discovery.

Locating the
MAC address of a networked
computer from Windows:

1. Click Start -> Run, type cmd and click Ok
2. Type ping xxx.xxx.xxx.xxx, replacing xxx.xxx.xxx.xxx with the IP address of the
   computer who’s
   MAC address you want to retrieve
3. After the ping response has finished, type arp -a
4. Under Internet Address, locate the IP address you just pinged. In the same line, the corresponding
   MAC address is listed under Physical Address

Locate the
MAC address of a networked
computer from Mac OS X:

1. Open a Terminal window.
2. Type ping xxx.xxx.xxx.xxx, replacing xxx.xxx.xxx.xxx with the IP address of the
   computer who’s
   MAC address you want to display
3. After the ping response has finished, type arp -a
4. The resulting output displays the IP address and a corresponding
   MAC address

computer, connection, listing, mac, network, networking, ping, Windows

Networking, Windows