Tenda D840 User Manual page 64

f. Destination IP
address: Entering the
external network IP
address to be filtered.
g. Destination Subnet
Mask: Entering the
subnet mask
corresponding to the
external network IP
address to be filtered.
h. Destination Port:
Entering the port
number of the
external network IP
address to be filtered.
Based on the above
settings, you can add
your filtering rules.
You can select your
WAN interface.
However, it is
recommended to
keep the default
setting unchanged.
D840R ADSL2+ Router User Guide
59