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Using the Configuration Menu (continued)

Advanced > Virtual Server

The DI-704UP is also capable of port-redirection meaning incoming traffic to a particular

port can be redirected to a different port on the server computer. Each of the virtual

services that are created will be listed at the bottom of the screen in the Virtual Servers

List. There are already pre-defined virtual services already in the table. You may use

them by enabling them and assigning the server IP to use that particular virtual service.

Name:

The name referencing the virtual service.

Private IP:

The server computer in the LAN (Local Area Network) that will be providing the virtual

services.

Private Port:

The port number of the service used by the Private IP computer.

Protocol Type:

The protocol used for the virtual service.

Public Port:

The port number on the WAN side that will be used to access the virtual service.

Schedule:

The schedule of time when the virtual service will be enabled. The schedule may be

set to Always, which will allow the particular service to always be enabled. If it is set

to Time, select the time frame for the service to be enabled. If the system time is

outside of the scheduled time, the service will be disabled.

Example #1:

If you have a Web server that you wanted Internet users to access at all times, you

would need to enable it. Web (HTTP) server is on LAN (Local Area Network) computer

192.168.0.25. HTTP uses port 80, TCP.

Name: Web Server

Private IP: 192.168.0.25

Protocol Type: TCP

Private Port: 80

Public Port: 80

Schedule: always

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Using the Configuration Menu (continued)

Advanced > Virtual Server

Example #2:

If you have an FTP server that you wanted Internet users to access by WAN port 2100

and only during the weekends, you would need to enable it as such. FTP server is on

LAN computer 192.168.0.30. FTP uses port 21, TCP.

Name: FTP Server

Private IP: 192.168.0.30

Protocol Type: TCP

Private Port: 21

Public Port: 2100

Schedule: From: 01:00AM to 01:00AM, Sat to Sun

• All Internet users who want to access this FTP Server must connect to it from port

2100. This is an example of port redirection and can be useful in cases where there

are many of the same servers on the LAN network.

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Using the Configuration Menu (continued)

Advanced > Application

Some applications require multiple connections, such as Internet gaming, video

conferencing, and Internet telephony. These applications have difficulty working through

NAT (Network Address Translation).

Special Applications

makes some of these

applications work with the DI-704UP. If you need to run applications that require multiple

connections, specify the port normally associated with an application in the

Trigger

Ports

field, then enter the public ports associated with the trigger port into the

Public

Ports

field.

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Using the Configuration Menu (continued)

Advanced > Application

At the bottom of the screen, there are defined special applications. To use them, select

one from the drop down list and select an ID number you want to use.

Then click the

“Copy to” button and the router will fill in the appropriate information to the list. You will

then need to enable the service. If the mechanism of Special Applications fails to make

an application work, try using DMZ host instead.

Note!

Only one PC can use each Special Application tunnel.

Trigger Port:

This is the port used to trigger the application. It can be either a single port or a range of

ports.

Special Application List:

In the Special Application List, it will list some of the popular services with its trigger

ports. This is the port number on the WAN side that will be used to access the application.

You may define a single port or a range of ports. You can use a comma to add multiple

ports or port ranges.

Enable / Disable:

Select to activate the policy. To disable the virtual server feature, select disable.

Trigger Type:

Select the trigger protocol you would like to initiate. To change the selection, use the

drop down arrow and other choices will be listed.

Public Type:

Enter in the protocol type for public ports to access.

To change the selection, use the

drop down arrow and other choices will be listed.

Public Ports:

Enter in the public port or ports to be used.

A range of ports can be specified with a

hyphen.

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Using the Configuration Menu (continued)

Advanced > IP Filter

Use IP (Internet Protocol) filters to allow or deny computers access to the Internet based

on their IP address.

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