Netgear Wndr4500v3 N900 Wifi Dual Band Gigabit Router Premium Edition User Manual

							Manage Your Network 131
 N900 WiFi Router
Manage the Router Configuration File
The configuration settings of the router are stored within the router in\
 a configuration file. You 
can back up (save) this file to your computer, restore it, or reset it to the factory default 
settings.
Back Up Settings
To back up the router’s configuration settings:
1. 
Launch a web browser from a computer or wireless device that is connecte\
d to the 
network.
2.  T
ype  http://www.routerlogin.net  or http://www.routerlogin.com .
A login screen displays.
3.  Enter the 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 screen displays.
4.  Select  ADV
 ANCED > Administration >  Backup Settings .
5. Click the  Back Up button.
6.  Specify a
  location on your network.
7.  Click the  OK button.
A copy of the current settings is saved in the location you specified.
Restore Configuration Settings
To restore configuration settings that you backed up:
1.  Launch a web browser from a computer or wireless device that is connecte\
d to the 
network.
2.  T
ype  http://www.routerlogin.net  or http://www.routerlogin.com .
A login screen displays. 
						

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132 N900 WiFi Router 
3. Enter the 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 screen displays.
4. Select ADVANCED > Administration > Backup Settings.
The Backup Settings screen displays.
5. Click the Browse button to find and select the .cfg file. 
6. Click the Restore button.
The file is uploaded to the router and the router reboots.
WARNING:
Do not interrupt the reboot process.
Erase the Current Configuration Settings
You can erase the current configuration and restore the factory default settings. You might 
want to do this if you move the router to a different network. (See 
Factory Settings on 
page 155.)
To erase the configuration settings:
1. Launch a web browser from a computer or wireless device that is connected to the 
network.
2. Type http://www.routerlogin.net or http://www.routerlogin.com.
A login screen displays.
3. Enter the 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 screen displays.
4. Select ADVANCED > Administration > Backup Settings.
The Backup Settings screen displays.
5. Click the Erase button.
The factory default settings are restored. The user name is admin, the password is 
password, and the LAN IP address is 192.168.1.1. DHCP is enabled. 
						

							Manage Your Network 133
 N900 WiFi Router
Remote Management
You can access your router over the Internet to view or change its settin\
gs. You must know 
the router’s WAN IP address to use this feature. For information about remote access u\
sing 
Dynamic DNS, see Chapter 7, Access Storage Devices Through the Internet. 
Note: Be sure to change the password for the user name admin to a secure 
password. The ideal password contains no dictionary words from any 
language and contains uppercase and lowercase letters, numbers, 
and symbols. It can be up to 30 characters. See Change the admin 
Password on page  120.
To set up remote management:
1. Launch a web browser from a computer or wireless device that is connecte\
d to the 
network.
2.  T
ype  http://www.routerlogin.net  or http://www.routerlogin.com .
A login screen displays.
3.  Enter the 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 screen displays.
4.  Select  ADV
 ANCED > Advanced Setup > Remote Management . 
5. Select the Turn Remote Management On  check box.
6.  In the 
Allow Remote Access By section, specify the external IP addresses to be allowed to 
access the router’s  remote management.
Note: For enhanced security, restrict access to as few external IP addresses 
as practical.
Select one of the following: 
						

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134 N900 WiFi Router 
•Only This Computer. Allow access from a single IP address on the Internet. Enter 
the IP address to be allowed access. 
•IP Address Range. Allow access from a range of IP addresses on the Internet. Enter 
a beginning IP address and an ending IP address to define the allowed range. 
•Everyone. Allow access from any IP address on the Internet. 
7. Specify the port number for accessing the web management interface.
Normal web browser access uses the standard HTTP service port 80. For greater 
security, enter a custom port number for the remote web management interface. Choose 
a number from 1024 to 65535, but do not use the number of any common service port. 
The default is 8080, which is a common alternate for HTTP.
8. Click the Apply button.
Your changes take effect.
To use remote access:
1. Launch a web browser on a computer that is not on your home network.
2. Type your router’s WAN IP address into your browser’s address or location field followed by 
a colon (:) and the custom port number. 
For example, if your external address is 134.177.0.123 and you use port number 8080, 
enter http://134.177.0.123:8080 in your browser. 
						

							135
11
11.   Specify Internet Port Settings
You can use port forwarding and port triggering to set up rules for Internet traffic. You need 
networking knowledge to set up these features.
This chapter includes the following sections:
•Set Up Port Forwarding to a Local Server 
•Set Up Port Triggering  
						

							Specify Internet Port Settings 136
N900 WiFi Router 
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 d\
efault 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 prov\
ide 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
  101.
3.  Launch a web browser from a computer or wireless device that is connecte\
d to the network.
4.  T
ype  http://www.routerlogin.net  or http://www.routerlogin.com .
A login screen displays.
5.  Enter the 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 screen displays.
6.  Select  ADV
 ANCED > Advanced Setup > Port Forwarding/Port Triggering.
7. Leave the  Port Forwarding radio button selected as the service type.
8.  T
o add a service that is in the  Service Name list, do the following:
a. Select a service from the list.
b.  In the Server IP address  field, enter the port number
 .
c.  Click the  Add button.
The service displays in the list. 
						

							Specify Internet Port Settings 137
 N900 WiFi Router
If the service that you want to add is not in the list, create a custom \
service. See 
Add a 
Custom Port Forwarding Service on page  137.
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 connecte\
d to the network.
3.  T
ype  http://www.routerlogin.net  or http://www.routerlogin.com .
A login screen displays.
4.  Enter the 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 screen displays.
5.  Select  ADV
 ANCED > Advanced Setup > Port Forwarding/Port Triggering.
The Port Forwarding/Port Triggering screen 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.  In 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.
• T
ype the port numbers in the Internal Port Range field. 
						

							Specify Internet Port Settings 
138 N900 WiFi Router 
12. In the Internal IP address field, type the IP address or 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 screen.
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 http://www.routerlogin.net or http://www.routerlogin.com.
A login screen displays.
3. Enter the 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 screen displays.
4. Select ADVANCED > Advanced Setup > Port Forwarding/Port Triggering.
The Port Forwarding/Port Triggering screen 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 screen 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 http://www.routerlogin.net or http://www.routerlogin.com.
A login screen displays.
3. Enter the user name and password.
The user name is admin. The default password is password. The user name and 
password are case-sensitive. 
						

							Specify Internet Port Settings 
139  N900 WiFi Router
The BASIC Home screen displays.
4. Select ADVANCED > Advanced Setup > Port Forwarding/Port Triggering.
The Port Forwarding/Port Triggering screen 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 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. In the Port Forwarding/Port Triggering screen, 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 screen 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: 
•Destination address. The IP address of www.example.com, which is the address of 
your router.
•Destination port number. 80, which is the standard port number for a web server 
process.
2. Your router receives the message and finds your port forwarding rule for incoming port 80 
traffic. 
3. The router changes the destination in the message to IP address 192.168.1.123 and sends 
the message to that computer. 
						

							Specify Internet Port Settings 
140 N900 WiFi Router 
4. Your web server at IP address 192.168.1.123 receives the request and sends a reply 
message to your router.
5. Your router performs Network Address Translation (NAT) on the source IP address and 
sends the reply through the Internet to the computer or wireless device that sent the web 
page request. 
Set Up Port Triggering
Port triggering is a dynamic extension of port forwarding that is useful in these cases:
•An application must use port forwarding to more than one local computer (but not 
simultaneously).
•An application must open incoming ports that are different from the outgoing port.
With port triggering, the router monitors traffic to the Internet from an outbound “trigger” port 
that you specify. For outbound traffic from that port, the router saves the IP address of the 
computer that sent the traffic. The router temporarily opens the incoming port or ports that 
you specify in your rule and forwards that incoming traffic to that destination.
Port forwarding creates a static mapping of a port number or range of ports to a single local 
computer. Port triggering can dynamically open ports to any computer when needed and 
close the ports when they are no longer needed.
Note:If you use applications such as multiplayer gaming, peer-to-peer 
connections, real-time communications such as instant messaging, or 
remote assistance (a feature in Windows XP), enable Universal Plug 
and Play (UPnP). See 
Improve Network Connections with Universal 
Plug and Play on page 46.
Add a Port Triggering Service
To add a port triggering service:
1. Launch a web browser from a computer or wireless device that is connected to the 
network.
2. Type http://www.routerlogin.net or http://www.routerlogin.com.
A login screen displays.
3. Enter the 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 screen displays.
4. Select ADVANCED > Advanced Setup > Port Forwarding/Port Triggering.