Denwa Communications DW-610G User Manual page 45

DNS Server Address
Select name of lease table, click the Delete button will delete the selected lease
table from DHCP lease table.
DNS Relay
Notice:
1) The size of lease table cannot be larger than the quantity of C network IP
address. We recommend you to use the default lease table and not modify it.
2) If you modify the DHCP lease table, you need save the configuration and
reboot.
8.3.2.6 TIME&DATE
Setting time zone and SNTP (Simple Network Time Protocol) server according to your
location, you can also manually adjust date and time in this web page.
Set the default DNS server IP of the lease table; Click the
Add button to submit and add this lease table
Select DNS Relay, the default is enabled. Click the Apply
button to become effective.