D-Link DIR-645 User Manual page 46

Section 3 - Software Configuration
Step 1: Configure Your IPv6 Internet Connection
The router will try and detect whether its possible to obtain the IPv6
Internet Connection type automatically. If this succeeds then the user
will be guided through the input of the appropriate parameters for the
connection type found.
However, if the automatic detection fails, the user will be prompt to
either Try again or to click on the Guide me through the IPv6 settings
button to initiate the manual continual of the wizard.
D-Link DIR-645 User Manual 42