D-Link DSL-504G manual Source IP, Destination IP, Source Port, Destination Port, Protocol, Action

DSL-504G ADSL Router User’s Guide

First determine the direction of the traffic you want the rule to filter. To filter WAN to LAN traffic, select the Inbound Filter option; notice that the Filter List at the bottom of the menu displays the Inbound Filter List. Any new Inbound Filter rules created will appear in the list. Likewise, should you choose to create an Outbound Filter rule, the Outbound Filter List of rules will appear at the bottom of the menu.

	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
Source 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
Destination IP	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
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 Single Port, Range of
	Ports, Any Port or Safe Ports (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 Single
	Port, Range of Ports, Any Port or Safe Ports (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 criteria
Action	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 Outbound or Inbound 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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