TP-Link TL-ER5120 User Manual page 41

Set the MAC Address for LAN port:
In a complex network topology with all the ARP bound devices, if you want to change to use
TL-ER5120 instead of the current router in a network node, you can just set the MAC address of
TL-ER5120 's LAN port the same to the MAC address of the previous router, which can avoid all the
devices under this network node to update their ARP binding tables.
Set the MAC Address for WAN port:
In the condition that your ISP has bound the account and the MAC address of the dial-up device, if you
want to change the dial-up device to be TL-ER5120, you can just set the MAC address of
TL-ER5120's WAN port the same to the MAC address of the previous dial-up device for a normal
Internet connection.
Set the MAC Address for DMZ port:
The application of MAC address for DMZ port is similar to that for LAN port.
Choose the menu Network→MAC Address→MAC Address to load the following page.
The following items are displayed on this screen:
MAC Address
Port:
Current MAC Address:
Figure 3-20 MAC Address
Displays the port type of the router.
Displays the current MAC address of the port.
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