D-Link DI-514 Router Manual PDF (Setup & Configuration Guide)

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Advanced > Virtual Server

Virtual Server

The DI-514 can be configured as a virtual server so that remote users

accessing Web or FTP services via the public IP address can be

automatically redirected to local servers in the LAN (Local Area Network).

The DI-514 firewall feature filters out unrecognized packets to protect your

LAN network so all computers networked with the DI-514 are invisible to the

outside world. If you wish, you can make some of the LAN computers

accessible from the Internet by enabling

Virtual Server.

Depending on the

requested service, the DI-514 redirects the external service request to the

appropriate server within the LAN network.

The DI-514 is also capable of port-redirection meaning incoming traffic to a

particular port may be redirected to a different port on the server computer.

Each 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

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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.

Protocol Type:

The protocol used for the virtual service.

Private Port:

The port number of the service used by the Private IP

computer.

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

Click on this icon to edit the virtual service.

Click on this icon to delete the virtual service.

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

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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.

Advanced > Applications

Some applications require multiple connections, such as Internet gaming,

video conferencing, Internet telephony and others. These applications have

difficulties working through NAT (Network Address Translation). Special

Applications makes some of these applications work with the DI-514. If you

need to run applications that require multiple connections, specify the port

normally associated with an application in the "Trigger Port" field, select the

protocol type as TCP or UDP, then enter the public ports associated with the

trigger port to open them for inbound traffic.

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The DI-514 provides some predefined applications in the table on the bottom

of the web page. Select the application you want to use and enable it.

Note!

Only one PC can use each Special Application tunnel.

Trigger Name:

This is the name referencing the special application.

Trigger Port:

This is the port used to trigger the application. It can be either

a single port or a range of ports.

Trigger Type:

This is the protocol used to trigger the special application.

Public Port:

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.

Public Type:

This is the protocol used for the special application.

Schedule:

This is the schedule of time when the special application will be

enabled.

Filters

Filters are used to deny or

allow LAN (Local Area

Network) computers from

accessing the Internet.

The DI-514 can be setup

to deny internal

computers by their IP or

MAC addresses. The DI-

514 can also block users

from accessing restricted

web sites.

IP Filters

Use IP Filters to deny

LAN IP addresses from

accessing the Internet.

You can deny specific port

numbers or all ports for the specific IP address.

IP:

The IP address of the LAN computer that will be denied access to the

Internet.

Port:

The single port or port range that will be denied access to the Internet.

Schedule:

This is the schedule of time when the IP Filter will be enabled.

Advanced > Filters

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MAC Filters

Use MAC (Media

Access Control) Filters

to allow or deny LAN

(Local Area Network)

computers by their

MAC addresses from

accessing the Internet.

You can either

manually add a MAC

address or select the

MAC address from the

list of clients that are

currently connected to

the Broadband Router.

URL Blocking

URL Blocking is used to deny LAN computers from accessing specific web

sites by its URL. A URL is a specially formatted text string that defines a

location on the

Internet. If any part of

the URL contains the

blocked word, the site

will not be accessible

and the web page will

not display.

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