DIR-620S  Wireless N300 Router with 3G/LTE Support and
USB Port
User Manual
Configuring via Web-based Interface
In the Dynamic IPv6 Addresses section, you can configure IPv6 addresses assignment settings.
Figure 97. Configuring the local interface. The IPv6 tab. The Dynamic IPv6 Addresses section.
Parameter Description
Dynamic IPv6 Addresses
Mode of dynamic IPv6 
address assignment
Select the needed value from the drop-down list.
• Disable: Clients' IPv6 addresses are assigned manually.
• Stateful: The built-in DHCPv6 server of the router allocates 
addresses from the range specified in the  Address range 
fields.  Also   when   this   value   is   selected,   the  Static   IP 
Addresses and Hosts sections are displayed on the tab.
• Stateless:   Clients   themselves   configure   IPv6   addresses 
using the prefix.
Address range
The start and the end values for the latest hextet (16 bit) of the range 
of IPv6 addresses which the DHCPv6 server distributes to clients.
Lease time
The lifetime of IPv6 addresses provided to clients.
The default route for 
LAN clients
Move the switch to the right to let the clients, that received IPv6 
addresses or configured them using the prefix, use the router as the 
default IPv6 route.
DNS relay
Move the switch to the right so that the devices connected to the 
router obtain the address of the router as the DNS server address.
Move the switch to the left so  that the  devices connected to the 
router obtain the address transmitted by the ISP or specified on the 
Advanced / DNS page as the DNS server address.
When all needed settings are configured, click the APPLY button.
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