D-Link DSL-504T manual Port, Port Range or Safe Range ports above

	DSL-504T DSL Router User’s Guide
The parameters described below are used to set up filter rules.
Parameter	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
Source IP	can opt to indicate a Mask Range, 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
Destination IP	configuring an Inbound or Outbound filter rule. You can opt to indicate a
	Mask Range, 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
Source Port	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).
	The Destination Port is the TCP/UDP port on either the LAN or WAN
Destination Port	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).
Protocol	Select the transport protocol (TCP, UDP or All) that will be used for the
	filter rule.
	Select to Allow or Deny transport of the data packets according to the
Action	criteria defined in the rule. Packets that are allowed are routed to their
	destination; packets that are denied are blocked.

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.

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