Tenda D840 User Manual page 44

automatically obtains
the DNS address.
5) Use the following DNS
server address:
To manually enter a
DNS address, check
this option.
a. Primary DNS server
b. Secondary DNS server
6) Click "Next".
a. Enable IGMP
Multicast: IGMP
agent. For example,
to enable the IPTV in
the PPPoE mode, you
need to check this
option.
b. Enable WAN Service:
Checked by default. It
is recommended to
keep this default
setting, unless you
do not need to
D840R ADSL2+ Router User Guide
39