Monday, June 9, 2008

TCP/IP - Get a MAC address using ARP -a

If you need the MAC (Media Access Control) address of a device that is online here is an easy way to get it:

1. Open a command prompt
2. ping the ip address.
3. run the command arp -a to display the ARP (address resolution protocol) table

Here you should see the MAC address next to the IP address.

The ARP table keeps the this information for 2 minutes after the ping.
Here is an example:


1 comment:

Silvester Norman said...

What are the advantage to view MAC Address of a network adapter using ARP protocol?

Thanks
Silvester Norman

Change Mac Address