ARRIS Consumer Care

SB6121: Locating The HFC MAC Address

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Question

Where can I find my HFC MAC address on the SB6121 modem?

Answer

The label on the bottom of the SB6121 contains the Media Access Control (MAC) address, a unique, 48-bit value permanently saved in ROM at the factory to identify each Ethernet network device. To receive data service, the MAC address marked HFC MAC ID will need to be provided to the Internet Service Provider. The HFC MAC ID is also known as the CMAC Address. This document includes the following sections:

Locating the MAC ID on the Bottom Panel
Locating the MAD ID in the GUI (Graphical User Interface)

Locating the MAC ID on the Bottom Panel

The MAC ID can be located on a white sticker on the bottom of the device.

Locating the MAC ID within the GUI

NOTE: If the SB6121 is connected to a router, it is recommended to disconnect the router and connect the SB6121 directly to a computer with an Ethernet cable.

Launch a web browser, such as Internet Explorer, Firefox, or Safari. Enter http://192.168.100.1 into the address box. The Status page will appear.
Click the Addresses link on top menu. The Addresses page appears.
Locate the HFC MAC Address below the Serial Number, which is displayed (as shown below).