User's Manual
AT-2911GP Gigabit Fiber Ethernet PoE+ Adapters Installation and User’s Guide
108
Locally Administered Address
The Locally Administered Address allows you to replace the MAC address 
originally assigned to the adapter with a user-defined address. The user-
defined address that you assign to the adapter is called a locally 
administered address.
Caution
A locally administered address overrides the original MAC address 
stored in the AT-2911GP series adapter card. When you change the 
MAC address, ensure that a unique MAC address is assigned.
Guidelines for
Assigning a
Locally
Administered
Address
Here are guidelines for assigning a locally administered address:
 The address must be unique.
 The address consists of a 12-digit hexadecimal number, for 
example, “020C46005501.”
 The address must start with “02” in the most significant byte, for 
example, “020304050607.”
 Do not assign “0000 0000 0000” or “FFFF FFFF FFFF.”
 The range is from 0200 0000 0000 to 02FF FFFF FFFF.
Assigning the
Locally
Administered
Address
To assign or change the Locally Administered Address, do the following:
1. Access the Advanced Properties.
See “Accessing Advanced Properties” on page 87. 
2. Select Locally Administered Address in the Property box.
The Locally Administered Address page is displayed as shown in 
Figure 72 on page 109.










