D-Link DSL-X1852E User Manual page 71

Section 4 - Configuration
Destination IP
Enter the starting destination IP address (e.g. 1.1.1.1 for IPv4 or 2001::1
Address/Port:
for IPv6) and starting port that the rule will apply to. Depending on
whether it is a upstream or downstream traffic, this can be either a
WAN or LAN IP address. Both a single IP address and a range of IP
addresses can be used.
End Destination
Enter the ending destination IP address (e.g. 1.1.1.5 for IPv4 or
IP Address/Port:
2001::5 for IPv6) and ending port that the rule will apply to. For a
single IP address assignment, enter the same address as the starting
IP address. Depending on whether it is a upstream or downstream
traffic, this can be either a WAN or LAN IP address.
Destination
Enter the subnet mask of the destination IP address (four 8-bit octets).
Subnet Mask/
Or enter the prefix length for IPv6 addressing scheme (1-128).
Prefix Length:
Interface: Select a Service Number of the WAN Interface for which the traffic
will pass
Click Apply to save your settings. A maximum of 20 rules can be defined.
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