Tenda D840 User Manual page 63

2) 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 internal
network IP address to
be filtered.
d. Source Subnet Mask:
Entering the subnet
mask corresponding
to the internal network
IP address to be
filtered.
e. Source Port: Entering
the port number of the
internal network IP
address to be filtered.
D840R ADSL2+ Router User Guide
58