Get MAC address of a machine

on 2 January 2019 DEVOPS, NETWORK and Tags: , , , , with 0 comments

If you look at wikipedia definition, a media access control address (MAC address) of a device is a unique identifier assigned to a network interface controller (NIC) for communications at the data link layer of a network segment.

A machine can have multiple MAC addresses, but each NIC as only one MAC address. Packets that are sent on the ethernet are always coming from a MAC address and sent to a MAC address.

How to get MAC address of a Linux machine

Run :

ifconfig -a

You get this output, we highlight below the MAC address “02:9B:B0:CB:AA:FC” of first ethernet adapter “eth0“:

How to get MAC address of a Windows machine

Open a Command Prompt by running “cmd” in “Search Windows” then run:

getmac

You’ll get the MAC Address “C0-B6-F9-5B-04-9B” for connected transport: