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How to Determine the MAC Address of a Print Server

Document ID:HO1299

Usergroup :External


How to determine the MAC address of a print server; What is an Organization Identifier?; Most Significant Byte (MSB); Canonical; A MAC address uniquely identifies a network node. It is composed of 6 bytes, X-X-X-X-X-X. The first three bytes are termed the OID, which stands for Organization IDentifier. By looking at the OID, you can identify the manufacturer of a particular network node.
Lexmark owns both the 000200 and the 000400 ranges. This means that if you see a MAC address starting with 002000 or 000400, you are looking at a Lexmark device. Note: Both numbers are based on the canonical form of the MAC address.  The fact that one OID begins with 000400 does NOT indicate that the MSB form is being used.
The last three bytes identify one unique network node within the manufacturer range. For example:

with an Ethernet MAC address of 0020004a6d5e,
the OID of 002000 represents Lexmark, and the 4a6d5e represents one unique adapter over the 002000 OID range.


The MAC address or UAA (short for Universally Administered Address) is a 12-character identifier that is unique for each network hardware device (printer's network card, PC's network card, network router, and so on).  The MAC address of a laser printer's network card can be found printed on a network settings page, in a section labeled UAA (MSB, Canonical). The MAC address is presented in two formats, MSB and canonical. In most cases, you will be using the canonical format.
The following is a sample network settings page from an Ethernet internal network card, with the location of the MAC address highlighted in red:


 The following is a sample network page printed from a Z65n: 


Note: Since our inkjet printers are Ethernet only, you will see only one MAC address.


How to Convert from Canonical to Non-Canonical Storage
Canonical Storage (Ethernet)

Explanation of MSB vs Canonical:
You can select the data representation to be used for displaying a network MAC address. Changing the selection will switch all displays of the MAC address between MSB (IBM or most significant bit) and LSB (least significant bit or canonical format).  The order of the bytes remains the same, but the binary digits of each byte are read from right to left when converted from the IBM form to the canonical form.  For example, the following two representations refer to the same MAC address:
IBM format MAC Address (MSB)
  1    0     0    0     5    A     1    7     5    8     6    9
0001 0000  0000 0000  0101 1010  0001 0111  0101 1000  0110 1001
Canonical MAC Address (LSB)
0    8     0    0     5    A     E    8     1    A     9    6
0000 1000  0000 0000  0101 1010  1110 1000  0001 1010  1001 0110
In addition, convention dictates that MSB addresses are formatted for presentation using a colon (:) separator between bytes, while the canonical presentation uses a hyphen (-). For example, the above address would be presented in MSB format as
and canonically as

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