D-Link DSL-510 User Manual page 60

DSL-510 ADSL Router User's Guide
Advanced＞Filters＞Inbound
Filters-Inbound: Use IP Inbound Filters to deny WAN IP addresses from accessing the internal network. You can deny
specific port numbers or all ports for the specific IP address.
Source IP: IP address criteria for the source computer(s) from which the packet originates.
Destination IP: IP address rule criteria for the destination computer(s) (i.e., the IP address of the computer to which the
packet is being sent).
Source Port: Port number criteria for the computer(s) from which the packet originates. This field will be dimmed
(unavailable for entry) unless you have selected TCP or UDP as the protocol. See the description of Source IP Address
for the selection option.
Destination Port: Port number criteria for the computer(s) (i.e., the port number of the type of computer to which the
packet is being sent). This field will be dimmed (unavailable for entry) unless you have selected TCP or UDP as the
protocol. See the description of Source IP Address for the selection option.
Protocol: drop down menu allows you to select the transport protocol for this access policy. If the desired transport
protocol is not listed in the menu, then you can chose "OTHER" option and enter the desired IP based transport protocol
number in the following text box.
Enable NAT: NAT (Network Address Translation) is a method for disguising the private IP addresses you use on your
LAN as the public IP address you use on the Internet. You define NAT rules that specify exactly how and when to translate
between public and private IP addresses. Enable NAT item is enabled by default. You can enable or disable NAT by
selecting the Enable or Disable option in the configuration menu and submitting the settings.
Action: menu helps in defining this policy as Permit or Deny type policy. Permit type policies allow the traffic matched by
the policy selectors to pass through, where as Deny type policy blocks that traffic.
Schedule: This is follow Schedule Configuration. Default setting is None. When Schedule Configuration add new time
schedule, this item will follow new time schedule item.
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