Modem MAC address

MAC address (Media Access Control address) is a quasi-unique identifier consists of a six byte number that attached to most network adapter card or network interface card (NIC). As such, all network cards, whether it’s of Ethernet NIC, Gigabit Ethernet NIC or wireless 802.11a/b/g/n WiFi or HiperLAN adapter, should have different MAC addresses, which also known as Ethernet Hardware Address (EHA) or adapter address.

Each cable modem, regardless of brand, is uniquely identified by its Cable Modem ID, or MAC address - short for Media Access Control. This address is a part of the hardware on the modem, and is associated with a specific user account.

There are numerous cable modems on the market and bellow are generic instructions of how to get modem MAC address.

• Generally, the modem MAC address can be found on the bottom of the Modem, usually near or on a barcoded sticker, along with the serial number of the modem.
• Most times the modem MAC address will appear after these letters MAC or EA (e.g., MAC 00-12-ab-34-cd-5e) . Some Motorolas may have only SN (e.g., SN 8386848). Only use the alphanumeric numbers that appear after MAC or EA, or on some Motorolas, the numbers that appear after SN.
• It can be easily identified by its pattern (e.g. 00-12-ab-34-cd-5e or 8386848 on some Motorolas), which stays the same from modem to modem even if the values change.
• Sometimes cable modem MAC address is visible from their diagnostics. To see if your cable modem supports web based diagnostics.