D-Link DSL-522T User Manual page 59

The parameters described in the table below are used to set up filter rules.
Click the Apply button to put the new rule into effect. Any filter rule configured in the menu will appear in the
Filters List with the new settings. The Router must save the new settings and reboot before the new rules are
applied.
Filters Parameter
Source IP
Destination IP
Source Port
Destination Port
Protocol
Action
DSL-522T ADSL Router User Guide
Description
For an Outbound Filter, this is the IP address or IP addresses on your LAN
for which you are creating the filter rule. For an Inbound Filter, this is the IP
address or IP addresses for which you are creating the filter rule. You can
opt to indicate a Single IP, an IP Range or Any IP from the pull-down menu.
Choosing Any IP will apply the rule to all WAN or all LAN IP addresses
depending on which type of rule (Inbound or Outbound) is being configured.
Where the Destination IP address resides also depends on if you are
configuring an Inbound or Outbound filter rule. You can opt to indicate a
Single IP, an IP Range or Any IP from the pull-down menu.
The Source Port is the TCP/UDP port on either the LAN or WAN depending
on if you are configuring an Outbound or Inbound Filter rule. Select one of
the following options from the pull-down menu to define Any Port, Single
Port, Port Range or Safe Range (ports above 1024).
The Destination Port is the TCP/UDP port on either the LAN or WAN
depending on if you are configuring an Outbound or Inbound Filter rule.
Select one of the following options from the pull-down menu to define a Any
Port, Single Port, Port Range or Safe Range (ports above 1024).
Select the transport protocol (TCP, UDP or TCP/UDP) that will be used for
the filter rule.
Select to Allow or Deny transport of the data packets according to the
criteria defined in the rule. Packets that are allowed are routed to their
destination; packets that are denied are blocked.
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