³±

D-Link DGL-4500 User Manual

Section ³ - Configuration

Check this box to enable the DHCP server on your router. Uncheck to

disable this function.

Enter the starting and ending IP addresses for the DHCP server’s IP

assignment.

Note:

If you statically (manually) assign IP addresses to your computers

or devices, make sure the IP addresses are outside of this range or you

may have an IP conflict.

The length of time for the IP address lease. Enter the Lease time in

minutes.

Enable this feature to broadcast your networks DHCP server to LAN/

WLAN clients.

NetBIOS allows LAN hosts to discover all other computers within the

network, enable this feature to allow the DHCP Server to offer NetBIOS

configuration settings.

Enable this feature to allow WINS information to be learned from the WAN side, disable to allow manual configuration.

This feature allows the configuration of a NetBIOS ‘domain’ name under which network hosts operates. This setting has no

effect if the ‘Learn NetBIOS information from WAN’ is activated.

Select the different type of NetBIOS node;

Broadcast.only

,

Point-to-Point

,

Mixed-mode

, and

Hybrid

.

Enter your WINS IP address

Enable DHCP

Server:

DHCP IP Address

Range:

DHCP Lease Time:

Always Broadcast:

NetBIOS

Announcement:

Learn NetBIOS

from WAN:

NetBIOS Scope:

NetBIOS Node:

WINS IP Address:

DHCP Server Settings

DHCP stands for Dynamic Host Control Protocol. The router has a built-in DHCP server. The DHCP Server will automatically assign an IP

address to the computers on the LAN/private network. Be sure to set your computers to be DHCP clients by setting their TCP/IP settings

to “Obtain an IP Address Automatically.” When you turn your computers on, they will automatically load the proper TCP/IP settings provided

by the DGL-4500. The DHCP Server will automatically allocate an unused IP address from the IP address pool to the requesting computer.

You must specify the starting and ending address of the IP address pool.

³²

D-Link DGL-4500 User Manual

Section ³ - Configuration

DHCP Reservation

If you want a computer or device to always have the same IP address assigned, you can create a DHCP reservation.

The router will assign the IP address only to that computer or device.

Note:

This IP address must be within the DHCP IP Address Range.

Check this box to enable the reservation.

Enter the computer name or select from the

drop-down menu and click

<<

.

Enter the IP address you want to assign to the

computer or device. This IP Address must be

within the DHCP IP Address Range.

Enter the MAC address of the computer or

device.

If you want to assign an IP address to the

computer you are currently on, click this button

to populate the fields.

Click

Save

to save your entry. You must click

Save. Settings

at the top to activate your

reservations.

Enable:

Computer Name:

IP Address:

MAC Address:

Copy Your PC’s

MAC Address:

Save:

³³

D-Link DGL-4500 User Manual

Section ³ - Configuration

The DGL-4500 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 DGL-4500 firewall feature filters out unrecognized packets to protect your LAN network so all computers networked

with the DGL-4500 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 DGL-4500 redirects the external

service request to the appropriate server within the LAN network.

The DGL-4500 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 service that is created will be listed at the bottom of the screen in the Virtual Servers List. There are

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.

For a list of ports for common applications, please visit

http://support±dlink±com/faq/view±asp?prod_id=1191

.

Virtual Server

³4

D-Link DGL-4500 User Manual

Section ³ - Configuration

This will allow you to open a single port. If you would like to open a range of ports, refer to page 35.

Check this box to enable the rule.

Enter a name for the rule or select an application

from the drop-down menu. Select an application

and click

<<

to populate the fields.

Enter the IP address of the computer on your

local network that you want to allow the incoming

service to. If your computer is receiving an IP

address automatically from the router (DHCP),

you computer will be listed in the “Computer

Name” drop-down menu. Select your computer

and click

<<

.

Select

TCP

,

UDP

, or

Both.

from the drop-down

menu.

Enter the port that you want to open next to Private

Port and Public Port. The private and public ports

are usually the same. The public port is the port

seen from the Internet side, and the private port

is the port being used by the application on the

computer within your local network.

The schedule of time when the Virtual Server

Rule will be enabled. The schedule may be set to

Always, which will allow the particular service to

always be enabled. You can create your own times

in the

Tools

>

Schedules

section.

Select

Allow.All

(most common) or a created

Inbound filter. You may create your own inbound

filters in the

Advanced.>.Inbound.Filter

page.

Enable:

Name:

IP Address:

Protocol Type:

Private Port/

Public Port:

Schedule:

Inbound Filter:

³5

D-Link DGL-4500 User Manual

Section ³ - Configuration

Check this box to enable the rule.

Enter a name for the rule. You may select a

pre-defined application from the drop-down

menu and click

<<

.

This is the port used to trigger the application. It

can be either a single port or a range of ports.

Select the protocol of the trigger port (TCP, UDP,

or Both).

This is the port number on the Internet 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.

Select the protocol of the firewall port (TCP,

UDP, or Both).

The schedule of time when the Application Rule will be enabled. The schedule may be set to Always, which will allow the

particular service to always be enabled. You can create your own times in the

Tools

>

Schedules

section.

Enable:

Name:

Trigger:

Traffic Type:

Firewall:

Traffic Type:

Schedule:

Application Rules

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 DGL-4500. 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 firewall (public) ports associated with the trigger port to open them for inbound traffic.

The DGL-4500 provides some predefined applications in the table on the bottom of the web page. Select the application

you want to use and enable it.