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DSL-2750B User Guide
Click
New Entry
to add a rule.
Access Control
The Access Control section allows you to control access in and out of your network. Use this feature as Parental
Controls to only grant access to approved sites, limit web access based on time or dates, and/or block access
from applications like P2P utilities or games.
Select a device from the list or select
User Defined
to create a new object.
Select the protocol or service you want to block. The default list will have basic services. You
can select
Show All Services
for a large list. If you do not see the service you want, select
User Defined
to create your own. The complete list can be view and edited at
System
>
Objects and Rules
>
Protocols
.
Check this box if you want to redirect the user who tries to access a blocked service to a
website of your choice. To change the web site, go to
Services
>
Parental Control
>
Advanced Options
.
Select
Any
or a user defined schedule. Select
User Defined
to create a schedule rule. You
can create/view/edit schedules at
Services
>
Objects and Rules
>
Scheduler Rules
.
Address:
Protocol:
Reply with an
HTML Page:
Schedule:
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DSL-2750B User Guide
Port Forwarding
Port Forwarding allows you to open a single port or a range of ports. Certain applications and games may
require ports to be opened or forwarded to your computer to work. Click
New Entry
to create a rule.
Displays the name of the host name.
Displays the IP address of the host.
Displays the protocol(s) used in the port forwarding rule.
Displays the port(s) used in the port forwarding rule.
Displays the current status of the rule (Active or Disabled).
Click the green + icon to add a new entry, click the pencil icon to edit, or click the red X to delete
the entry.
Click to add a new port forwarding rule (refer to the next page).
Local Host:
Local Address:
Protocols:
Local Port:
Status:
Action:
New Entry:
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DSL-2750B User Guide
Create a Rule
Step 1:
Click New Entry.
Step 2:
Next to Local Host, select a computer or device from the drop-down menu.
Step 3:
Next to Protocols, select a pre-defined service from the drop-down menu. The default list will have
basic services. Select
Show All Services
for a much larger list of specific games and applications. If you do not
see the service you want, select
User Defined
to create your own. The complete list can be view and edited at
System
>
Objects and Rules
>
Protocols
.
Step 4:
Click
OK
to save the rule.
Step 5:
The new rule will appear in the list. You can click the green + icon to add a new entry, click the pencil
icon to edit, or click the red X to delete the entry.
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DSL-2750B User Guide
DMZ Host
If an application has trouble working from behind the Gateway, you can expose one computer to the Internet
and run the application on that computer.
Note:
Placing a computer in the DMZ will expose that computer to a variety of security risks. Use of this option
is only recommended as a last resort.
DMZ Host IP Address:
Check the box to DMZ. This will de-activate any port-forwarding rules.
Enter the IP address of the computer you want to open to the Internet.
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DSL-2750B User Guide
Port Triggering
The Port Triggering feature allows you to forward a range of ports to an IP address on your local network (LAN)
only after specific outbound traffic is detected. You can set up a port triggering entry based on your specific
ports.
IMPORTANT: Using various Internet applications depends on the Router’s firewall settings. Make sure that the
Router’s firewall is set to Medium Security or lower to take advantage of all the port forwarding features.
Firewall settings take precedence over port forwarding services configured in the Router. For example, if the
firewall is set to Medium Security, this will block ICMP packets even if the ICMP service is enabled. If a port
forwarding service is not working, try setting the firewall to a lower setting.
Protocol:
Outgoing Trigger Ports:
Incoming Ports to
Open:
Action:
Add:
Displays the protocol/service. Check the box to activate the rule.
Displays the outgoing port(s) and protocol(s) used by the application.
Displays the incoming port(s) and protocol(s) opened by the application.
Click the red X to delete the rule.
Select a service/application from the drop-down menu to add.