D-Link DSL-G256DG User Manual page 137

After clicking the Add button, the following page will be available.
In this section, the following parameters can be configured:
Tunnel Name: Enter the tunnel name here.
Mechanism: Select the tunnel mechanism option here. 6RD is the only option
available.
Associated WAN Interface: Select the WAN interface that will be associated with
this entry here.
Associated LAN Interface: Select the LAN interface that will be associated with
this entry here. Also select whether this interface will obtain the IPv4 mask
length, 6rd prefix, and border relay IPv4 address information manually, by
selecting Manual, or automatically, by selecting Automatic.
IPv4 Mask Length: After selecting Manual, enter the IPv4 Mask length here.
6rd Prefix with Prefix Length: After selecting Manual, enter the 6rd prefix with the
prefix length here.
Border Relay IPv4 Address: After selecting Manual, enter the border relay IPv4
address here.
Click the Apply/Save button to accept the changes made.
Web User Interface Configuration
D-Link DSL-G256DG VDSL Router User Manual
Page 137