DSL-G2452GR  AC1200   MU-MIMO   Wireless   Dual   Band
VDSL2 Router with ADSL2+/3G/LTE/Gigabit Ethernet WAN
Support, 2 FXS Ports and USB Port
User Manual
Configuring via Web-based Interface
The PTM section is displayed for VDSL WAN connections.
Figure 95. The page for creating a new PPPoE IPv6 connection. The PTM section.
Parameter Description
PTM
MAC address
A   MAC   address   assigned   to   the   interface.   This   parameter   is 
mandatory if your ISP uses MAC address binding. In the field, enter 
the   MAC   address   registered   by   your   ISP   upon   concluding   the 
agreement.
To   set   the   MAC   address   of   the   network   interface   card   (of   the 
computer that is being used to configure the router at the moment) 
as the MAC address of the WAN interface, move the Clone MAC 
address of your NIC  switch to the right. When  the  switch   is 
moved to the right, the field is unavailable for editing.
To set the router's MAC address, click the RESTORE DEFAULT 
MAC ADDRESS button (the button is available when the switch is 
moved to the right).
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