D-Link DWR-112 User Manual page 26

Section 3 - Configuration
PPPoE: Enter your PPPoE username and password.
Click Next to continue.
Select Static if your ISP assigned you the IP address,
subnet mask, gateway, and DNS server addresses.
Note: Make sure to remove your PPPoE software
from your computer. The software is no longer
needed and will not work through a router.
PPTP: Enter your PPTP username and password.
Click Next to continue.
D-Link DWR-112 User Manual 22