37D-Link DIR-890L User Manual
Section 3 - Conguration
DS-Lite
Select DS-Lite DHCPv6 Option to let the router allocate the AFTR 
IPv6 address automatically. Select Manual Conguration to enter 
the AFTR IPv6 address manually.
If you selected Manual Conguration above, enter the AFTR IPv6 
address used here.
Enter the B4 IPv4 address value used here.
Once connected, the WAN IPv6 address will be displayed here.
Once connected, the IPv6 WAN Default Gateway address will be 
displayed here.
Click Save when you are done.
DS-Lite 
Conguration:
AFTR IPv6 
Address:
B4 IPv6 
Address:
WAN IPv6 
Address:
IPv6 WAN 
Default 
Gateway:
DS-Lite is an IPv6 connection type. After selecting DS-Lite, the following parameters will be available for conguration: