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Page 161 / 183 Scroll up to view Page 156 - 160
Set Up Port Forwarding to a Local Server
If your home network includes a server, you can allow certain types of incoming traffic to reach the server.
For example, you might want to make a local web server, FTP server, or game server visible and available
to the Internet.
The router can forward incoming traffic with specific protocols to computers on your local network.You
can specify the servers for applications and you can also specify a default DMZ server to which the router
forwards all other incoming protocols.
To forward specific incoming protocols:
1.
Decide which type of service, application, or game you want to provide.
2.
Find the local IP address of the computer on your network that will provide the service.
You can usually find this information by contacting the publisher of the application or user groups or
news groups.
The server computer must always use the same IP address. Assign the server computer a reserved
IP address. See
Manage Reserved LAN IP Addresses
on page 132.
3.
Launch a web browser from a computer or wireless device that is connected to the network.
4.
Type
.
A login window opens.
5.
Enter the router user name and password.
The user name is
admin
. The default password is
password
. The user name and password are
case-sensitive.
The BASIC Home page displays.
6.
Select
ADVANCED > Advanced Setup > Port Forwarding/Port Triggering
.
7.
Leave the
Port Forwarding
radio button selected as the service type.
8.
From the
Service Name
menu, select the service name.
Specify Internet Port Settings
161
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If the service that you want to add is not in the menu, create a custom service. See
Add a Custom
Port Forwarding Service
on page 163.
9.
In the
Server IP Address
field, enter the IP address of the computer that will provide the service.
10.
Click the
Add
button.
The service displays in the menu.
Specify Internet Port Settings
162
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Add a Custom Port Forwarding Service
To add a custom service:
1.
Find out which port number or range of numbers the application uses.
You can usually find this information by contacting the publisher of the application or user groups or
news groups.
2.
Launch a web browser from a computer or wireless device that is connected to the network.
3.
Type
.
A login window opens.
4.
Enter the router user name and password.
The user name is
admin
. The default password is
password
. The user name and password are
case-sensitive.
The BASIC Home page displays.
5.
Select
ADVANCED > Advanced Setup > Port Forwarding/Port Triggering
.
The Port Forwarding/Port Triggering page displays.
6.
Leave the
Port Forwarding
radio button selected as the service type.
7.
Click the
Add Custom Service
button.
8.
In the
Service Name
field, enter a descriptive name.
9.
From the
Protocol
menu, select the protocol.
If you are unsure, select
TCP/UDP
.
10.
In the
External port range
field, enter the port numbers.
11.
Specify the internal ports by one of these methods:
•
Leave the
Use the same port range for Internal port
check box selected.
Specify Internet Port Settings
163
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•
Type the port numbers in the
Internal Port Range
field.
12.
In the
Internal IP address
field, type the IP addressor select the radio button for an attached device
listed in the table.
13.
Click the
Apply
button.
The service is now in the list on the Port Forwarding/Port Triggering page.
Edit a Port Forwarding Service
To edit a port forwarding entry:
1.
Launch a web browser from a computer or wireless device that is connected to the network.
2.
Type
.
A login window opens.
3.
Enter the router user name and password.
The user name is
admin
. The default password is
password
. The user name and password are
case-sensitive.
The BASIC Home page displays.
4.
Select
ADVANCED > Advanced Setup > Port Forwarding/Port Triggering
.
The Port Forwarding/Port Triggering page displays.
5.
Leave the
Port Forwarding
radio button selected as the service type.
6.
In the table, select the radio button next to the service name.
7.
Click the
Edit Service
button.
The Ports - Custom Services page displays.
8.
Change the settings as needed.
9.
Click the
Apply
button.
Your changes are saved.
Delete a Port Forwarding Entry
To delete a port forwarding entry:
1.
Launch a web browser from a computer or wireless device that is connected to the network.
2.
Type
.
A login window opens.
3.
Enter the router user name and password.
Specify Internet Port Settings
164
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The user name is
admin
. The default password is
password
. The user name and password are
case-sensitive.
The BASIC Home page displays.
4.
Select
ADVANCED > Advanced Setup > Port Forwarding/Port Triggering
.
The Port Forwarding/Port Triggering page displays.
5.
Select the
Port Forwarding
radio button as the service type.
6.
In the table, select the radio button next to the service name.
7.
Click the
Delete Service
button.
The service is deleted.
Application Example: Make a Local Web Server Public
If you host a web server on your local network, you can use port forwarding to allow web requests from
anyone on the Internet to reach your web server.
To make a local web server public:
1.
Assign your web server either a fixed IP address or a dynamic IP address using DHCP address
reservation.
In this example, your router always gives your web server an IP address of 192.168.1.33.
2.
On the Port Forwarding/Port Triggering page, configure the router to forward the HTTP service to the
local address of your web server at
192.168.1.33
.
HTTP (port 80) is the standard protocol for web servers.
3.
(Optional) Register a host name with a Dynamic DNS service and specify that name in the Dynamic
DNS page of the router.
Dynamic DNS makes it much easier to access a server from the Internet because you can type the
name in the Internet browser. Otherwise, you must know the IP address that the ISP assigned, which
typically changes.
How the Router Implements the Port Forwarding Rule
The following sequence shows the effects of a port forwarding rule:
1.
When you type the URL www.example.com in your browser, the browser sends a web page request
message with the following destination information:
Specify Internet Port Settings
165

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