Tenda D840 User Manual page 66

5) Click "Add" to display
the window shown in
the right figure.
a. Filter Name: Setting the
filtering name to
facilitate identification.
b. Protocol: Selecting one
from four available
protocols: TCP/UDP;
TCP; UDP; ICMP.
c. Source IP address:
Entering the external
network IP address to
be filtered.
d. Source Subnet Mask:
Entering the subnet
mask corresponding
to the external
network IP address to
be filtered.
e. Source Port: Entering
the port number of the
external network IP
address to be filtered.
D840R ADSL2+ Router User Guide
61