Samsung ML-4512ND-XAA - Manual (Page 142)

Wired network setup
16 2. Using a network-connected machine
4 Enter the machine’s new information into the configuration
window. In a corporate intranet, you may need to have this
information assigned by a network manager before
proceeding.
Find the machine’s MAC address from the Network
Configuration Report (see "Printing a network
configuration report" on page 13) and enter it without the
colons. For example, 00:15:99:29:51:A8 becomes
0015992951A8.
5 The machine will automatically print the Network
Configuration Report.