Netgear Router WGR614v7 User Manual

							54 Mbps Wireless Router WGR614v7 Reference Manual
Maintenance5-9
April 2006
From the Main Menu of the browser interface, under the Maintenance heading, select Set 
Password to bring up the menu shown below.
Figure 5-7:  Set Password menu
To change the password, first enter the old password, then enter the new password twice. Click 
Apply. 
						

							54 Mbps Wireless Router WGR614v7 Reference Manual
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April 2006 
						

							Advanced Configuration of the Router 6-1
April 2006
Chapter 6 
Advanced Configuration of the Router 
This chapter describes how to configure the advanced features of your 54 Mbps Wireless Router 
WGR614v7. These features can be found under the Advanced heading in the Main Menu of the 
browser interface.
.
Configuring Port Triggering
Port Triggering is an advanced feature that can be used to easily enable gaming and other internet 
applications. Port Forwarding is typically used to enable similar functionality, but it is static and 
has some limitations. 
Note: If you use applications such as multi-player gaming, peer-to-peer connections, real time 
communications such as instant messaging, or remote assistance (a feature in Windows XP), you 
should also enable UPnP according to the instructions at “Using Universal Plug and Play (UPnP)“ 
on page 6-18.
Port Triggering opens an incoming port temporarily and does not require the server on the internet 
to track your IP address if it is changed by DHCP, for example. 
Port Triggering monitors outbound traffic. When the router detects traffic on the specified 
outbound port, it remembers the IP address of the computer that sent the data and triggers the 
incoming port. Incoming traffic on the triggered port is then forwarded to the triggering computer. 
Using the Port Triggering page, you can make local computers or servers available to the Internet 
for different services (for example, FTP or HTTP), to play Internet games (like Quake III), or to 
use Internet applications (like CUseeMe). 
Port Forwarding is designed for FTP, Web Server or other server based services. Once port 
forwarding is set up, request from Internet will be forwarded to the proper server. On the contrary, 
Note: If you are unfamiliar with networking and routing, refer to Appendix B, 
“Network, Routing, Firewall, and Basics,” to become more familiar with the terms and 
procedures used in this chapter. 
						

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port triggering will only allow request from Internet after a designated port is triggered. Port 
triggering applies to chat and Internet games. 
Figure 6-1:  Port Triggering Menu
Note: If Disable Port Triggering box is checked after configuring port triggering, port triggering 
will be disabled but any port triggering configuration information you added to the router will be 
retained even though it will not be used. 
• Port Triggering Timeout
Enter a value up to 9999 minutes. The Port Triggering Timeout value controls the inactivity 
timer for the designated inbound port(s). The inbound port(s) will be closed when the 
inactivity timer expires. 
• For Internet Games or Applications 
Before starting, youll need to know which service, application or game youll be configuring. 
Also, youll need to have the outbound port (triggering port) address for this game or 
application.  
						

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April 2006
Follow these steps to set up a computer to play Internet games or use Internet applications: 
1.Click Add. 
Figure 6-2:  Add Port Trigger Menu
2.
Enter a service name in the Service Name box. 
3.Under Service User, selecting Any (default) will allow this service to be used by everyone in 
your network. Otherwise, select Single address and enter the IP address of one computer to 
restrict the service to a particular computer. 
4.Select the Service Type. 
5.Enter the outbound port number in Triggering Port box. 
6.Enter the inbound connection port information such as Connection Type, Starting Port and 
Ending Port boxes. This information can be obtained from the game or applications manual or 
support Web site. 
7.Click Apply to save your changes. 
Configuring Port Forwarding to Local Servers
Although the router causes your entire local network to appear as a single machine to the Internet, 
you can make a local server (for example, a Web server or game server) visible and available to the 
Internet. This is done using the Port Forwarding menu. From the Main Menu of the browser  
						

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6-4 Advanced Configuration of the Router
April 2006
interface, under Advanced, click on Port Forwarding to view the port forwarding menu, shown 
below.
Figure 6-3:  Port Forwarding Menu
Use the Port Forwarding menu to configure the router to forward incoming protocols to computers 
on your local network. In addition to servers for specific applications, you can also specify a 
Default DMZ Server to which all other incoming protocols are forwarded. The DMZ Server is 
configured in the WAN Setup menu as discussed in “Configuring the WAN Setup Options“ on 
page 6-7.
Before starting, youll need to determine which type of service, application or game youll provide 
and the IP address of the computer that will provide each service. Be sure the computer’s IP 
address never changes. To configure port forwarding to a local server:
1.From the Service & Game box, select the service or game that you will host on your network. 
If the service does not appear in the list, refer to the following section, “Adding a Custom 
Service”.
2.Enter the IP address of the local server in the corresponding Server IP Address box.
3.Click the Add button.
Note: To assure that the same computer always has the same IP address, use the reserved 
IP address feature of your wireless router. See “Using Address Reservation“ on page 
6-12 for instructions on how to use reserved IP addresses. 
						

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Advanced Configuration of the Router 6-5
April 2006
Adding a Custom Service
To define a service, game or application that does not appear in the Services & Games list, you 
must determine what port numbers are used by the service. For this information, you may need to 
contact the manufacturer of the program that you wish to use. When you have the port number 
information, follow these steps:
1.Click the Add Custom Service button.
Figure 6-4:  Ports - Custom Services Menu
2.
Type the service name in the Service Name box. 
3.Type the beginning port number in the Starting Port box. 
• If the application uses only a single port; type the same port number in the Ending Port 
box. 
• If the application uses a range of ports; type the ending port number of the range in the 
Ending Port box. 
4.Type the IP address of the computer in the Server IP Address box.
5.Click Apply to save your changes.
Editing or Deleting a Port Forwarding Entry
To edit or delete a Port Forwarding entry, follow these steps.
1.In the table, select the button next to the service name.
2.Click Edit or Delete. 
						

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April 2006
Local Web and FTP Server Example
If a local computer with a private IP address of 192.168.1.33 acts as a Web and FTP server, 
configure the Ports menu to forward HTTP (port 80) and FTP (port 21) to local address 
192.168.1.33 
In order for a remote user to access this server from the Internet, the remote user must know the IP 
address that has been assigned by your ISP. If this address is 172.16.1.23, for example, an Internet 
user can access your Web server by directing the browser to http://172.16.1.23. The assigned IP 
address can be found in the Maintenance Status Menu, where it is shown as the WAN IP Address.
Some considerations for this application are:
• If your account’s IP address is assigned dynamically by your ISP, the IP address may change 
periodically as the DHCP lease expires.
• If the IP address of the local computer is assigned by DHCP, it may change when the computer 
is rebooted. To avoid this, you can manually configure the computer to use a fixed address.
• Local computers must access the local server using the computers’ local LAN address 
(192.168.1.33 in this example). Attempts by local computers to access the server using the 
external IP address (172.16.1.23 in this example) will fail.
Multiple Computers for Half Life, KALI or Quake III Example
To set up an additional computer to play Half Life, KALI or Quake III: 
1.Click the button of an unused port in the table. 
2.Select the game again from the Services/Games list. 
3.Change the beginning port number in the Start Port box.  
For these games, use the supplied number in the default listing and add +1 for each additional 
computer. For example, if youve already configured one computer to play Hexen II (using 
port 26900), the second computers port number would be 26901, and the third computer 
would be 26902. 
4.Type the same port number in the End Port box that you typed in the Start Port box. 
5.Type the IP address of the additional computer in the Server IP Address box. 
6.Click Apply.  
						

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Some online games and videoconferencing applications are incompatible with NAT. The wireless 
router is programmed to recognize some of these applications and to work properly with them, but 
there are other applications that may not function well. In some cases, one local computer can run 
the application properly if that computer’s IP address is entered as the default in the PORTS Menu. 
If one local computer acts as a game or videoconferencing host, enter its IP address as the default.
Configuring the WAN Setup Options
The WAN Setup options let you configure a DMZ server, change the MTU size and enable the 
wireless router to respond to a Ping on the WAN port. These options are discussed below.
 
Figure 6-5:  WAN Setup menu.
Connect Automatically, as Required 
Normally, this option should be checked to enable it. An Internet connection will be made 
automatically after each timeout, whenever Internet-bound traffic is detected. This provides 
connection on demand and is potentially cost-saving in places in Europe for example where 
Internet services charge by the minute. 
If disabled, you must connect manually, using the “Connection Status” button on the Router Status 
screen. This manual connection will stay up all the time without time outs. 
						

							54 Mbps Wireless Router WGR614v7 Reference Manual
6-8 Advanced Configuration of the Router
April 2006
Disabling the SPI Firewall 
The SPI (Stateful Packet Inspection) Firewall protects your LAN against Denial of Service attacks. 
This should only be disabled in special circumstances. 
Setting Up a Default DMZ Server
The default DMZ server feature is helpful when using some online games and videoconferencing 
applications that are incompatible with NAT. The router is programmed to recognize some of these 
applications and to work properly with them, but there are other applications that may not function 
well. In some cases, one local computer can run the application properly if that computer’s IP 
address is entered as the default DMZ server.
Incoming traffic from the Internet is normally discarded by the router unless the traffic is a 
response to one of your local computers or a service that you have configured in the Ports menu. 
Instead of discarding this traffic, you can have it forwarded to one computer on your network. This 
computer is called the Default DMZ Server.
The WAN Setup menu, shown below lets you configure a Default DMZ Server.
To assign a computer or server to be a Default DMZ server, follow these steps: 
1.Click WAN Setup link on the Advanced section of the main menu. 
2.Type the IP address for that server. To remove the default DMZ server, replace the IP address 
numbers with all zeros.
3.Click Apply.
Responding to Ping on Internet WAN Port 
If you want the router to respond to a ping from the Internet, click the ‘Respond to Ping on 
Internet WAN Port’ check box. This should only be used as a diagnostic tool, since it allows your 
router to be discovered. Dont check this box unless you have a specific reason to do so.
Note: DMZ servers pose a security risk. A computer designated as the default DMZ 
server loses much of the protection of the firewall, and is exposed to exploits from the 
Internet. If compromised, the DMZ server can be used to attack your network.