D-Link DIR-615 User Manual page 20

Section 3 - Configuration
Select the type of Internet connection you use and
then click Next to continue.
If you selected Dynamic, you may need to enter
the MAC address of the computer that was last
connected directly to your modem. If you are currently
using that computer, click Clone Your PC's MAC
Address and then click Next to continue.
The Host Name is optional but may be required by
some ISPs. The default host name is the device name
of the Router and may be changed.
D-Link DIR-615 User Manual 16