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D-Link DIR-815 User Manual

Section 3 - Configuration

DHCP stands for Dynamic Host Control Protocol. The DIR-815 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 DIR-815. 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.

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 DHCP

Server:

DHCP IP Address

Range:

DHCP Lease Time:

Network Settings

DHCP Server Settings

When you have finished configuring the new DHCP Server Settings, click the

Save Settings

button at the top or bottom of

the window.

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D-Link DIR-815 User Manual

Section 3 - Configuration

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. Alternatively, select a

computer that currently has a DHCP lease from the

drop down menu and click

<<

to automatically

populate the C

omputer Name

,

IP Address

, and

MAC

Address

fields.

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.

Checkbox:

Computer

Name:

IP Address:

MAC Address:

Network Settings

DHCP Reservation

When you have finished configuring the new DHCP Reservation, click the

Save Settings

button at the top or bottom of the

window to activate your reservations.

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D-Link DIR-815 User Manual

Section 3 - Configuration

The DIR-815 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 DIR-815 firewall feature filters out unrecognized packets to protect your LAN network so all computers networked with

the DIR-815 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 DIR-815 redirects the external service request to

the appropriate server within the LAN network.

The DIR-815 is also capable of port-redirection, meaning that incoming traffic to a particular port may be redirected to a

different port on the server computer.

For a list of ports for common applications, please visit

.

Virtual Server

Advanced

49

D-Link DIR-815 User Manual

Section 3 - Configuration

The Virtual Server window allows you to open a single port. If you would like to open a range of ports, refer to the next page.

Check the box on the left side to enable the Virtual

Server 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

<<

.

Enter the port that you want to open next to Public

Port and Private Port. The public and private 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.

Select

TCP

,

UDP

, or

All

from the

Protocol

drop-down

menu.

Use the drop-down menu to schedule the time that 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.

Enable

Checkbox:

Name:

IP Address:

Public Port/

Private Port:

Traffic Type:

Schedule

Drop-Down

Menu:

Click the

Save Settings

button to save any changes made.

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D-Link DIR-815 User Manual

Section 3 - Configuration

This will allow you to open a single port or a range of ports.

Port Forwarding

Tick the checkbox on the left side to enable the Port

Forwarding 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

<<

.

Enter the port that you want to open next to Public

Port and Private Port. The public and private 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.

Select

TCP

,

UDP

, or

All

from the drop-down menu.

Use the drop-down menu to schedule the time

that the Port Forwarding 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 Checkbox:

Name:

IP Address:

Public Port/

Private Port:

Traffic Type:

Schedule:

Click the

Save Settings

button to save any changes made.