User`s guide

Description
This command reads the 34410A/11A/L4411A's Media Access Control (MAC)
address, also known as the link-layer address, the Ethernet (station)
address, LANIC ID, or Hardware Address. This is an unchangeable 48-bit
address assigned by the manufacturer to each unique Internet device.
Your network administrator may need the MAC address if they are
assigning a static IP address for this device.