D-Link DHP-1320 - 6 to4

73D-Link DHP-1320 User Manual
Section 3 - Conguration
IPv6
6to4
Select 6to4 from the My IPv6 Connection is drop-down menu if your Router will use a 6 to 4 tunnel to connect to the Internet.
Enter the DNS Address supplied by your Internet provider
(ISP).
Enter the LAN (local) IPv6 address for the router.
Primary DNS
Address:
LAN IPv6 Address:
Click the Save Settings button to save any changes made.