NETGEAR Modem CG814WG V3 User Manual

Wireless Cable Modem  
Gateway CG814WG v3  
Reference Manual  
NETGEAR, Inc.  
4500 Great America Parkway  
Santa Clara, CA 95054 USA  
202-10297-01  
June 2007  
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requirements for electromagnetic compatibility – Article 3.1b. Testing for electromagnetic compatibility according to  
EN 301 489-1 and EN 301 489-17 has been conducted. These are considered relevant and sufficient. Effective use of the  
radio spectrum – Article 3.2. Testing for radio test suites according to EN 300 328- 2 has been conducted. These are  
considered relevant and sufficient.  
Bestätigung des Herstellers/Importeurs  
Es wird hiermit bestätigt, daß das CG814WG v3 Wireless Cable Modem Gateway gemäß der im BMPT-AmtsblVfg 243/  
1991 und Vfg 46/1992 aufgeführten Bestimmungen entstört ist. Das vorschriftsmäßige Betreiben einiger Geräte (z.B.  
Testsender) kann jedoch gewissen Beschränkungen unterliegen. Lesen Sie dazu bitte die Anmerkungen in der  
Betriebsanleitung.  
Das Bundesamt für Zulassungen in der Telekommunikation wurde davon unterrichtet, daß dieses Gerät auf den Markt  
gebracht wurde und es ist berechtigt, die Serie auf die Erfüllung der Vorschriften hin zu überprüfen.  
Certificate of the Manufacturer/Importer  
It is hereby certified that the CG814WG v3 Wireless Cable Modem Gateway has been suppressed in accordance with the  
conditions set out in the BMPT-AmtsblVfg 243/1991 and Vfg 46/1992. The operation of some equipment (for example,  
test transmitters) in accordance with the regulations may, however, be subject to certain restrictions. Please refer to the  
notes in the operating instructions.  
Federal Office for Telecommunications Approvals has been notified of the placing of this equipment on the market  
and has been granted the right to test the series for compliance with the regulations.  
Technical Support  
Thank you for choosing Netgear product(s). Please register online and take advantage of the technical support resources  
such as Netgear online knowledge base. Technical support is available 24 hours a day, seven days a week; please call  
your Cable Internet Service Provider.  
Product and Publication Details  
Model Number:  
CG814WG v3  
Publication Date:  
Product Family:  
June 2007  
Product Family  
Product Name:  
CG814WG v3 Wireless Cable Modem Gateway  
Home or Business Product:  
Language:  
Home  
English  
Publication Part Number:  
202-10297-01  
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Contents  
About This Manual  
Hardware Requirements ..........................................................................................1-3  
LAN Configuration Requirements ............................................................................1-4  
SSID and Wireless Security Settings Form ....................................................................2-3  
Viewing or Changing Wireless Settings ..........................................................................2-4  
Chapter 3  
Content Filtering and Firewall Rules  
Content Filtering .............................................................................................................3-1  
Logs .........................................................................................................................3-2  
Blocking Keywords, Sites, and Services ..................................................................3-2  
Blocking Keywords and Domains .............................................................................3-3  
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Services ...................................................................................................................3-4  
Dynamic DNS ...........................................................................................................4-8  
LAN IP Settings ........................................................................................................4-9  
Connecting to the Gateway’s Main Menu .......................................................................5-2  
Troubleshooting the ISP Connection ..............................................................................5-3  
Testing the Path from Your PC to a Remote Device ................................................5-5  
Appendix A  
Technical Specifications and Factory Default Settings  
Technical Specifications ................................................................................................. A-1  
Factory Default Settings ................................................................................................ A-2  
Appendix B  
Related Documents  
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About This Manual  
®
The NETGEAR CG814WG v3 Wireless Cable Modem Gateway Reference Manual describes  
how to install, configure and troubleshoot the CG814WG v3 Wireless Cable Modem Gateway.  
The information in this manual is intended for readers with intermediate computer and Internet  
skills.  
Conventions, Formats and Scope  
The conventions, formats, and scope of this manual are described in the following paragraphs:  
Typographical Conventions. This manual uses the following typographical conventions:  
Italics  
Bold  
Emphasis, books, CDs, URL names  
User input  
Fixed  
Screen text, file and server names, extensions, commands, IP addresses  
Formats. This manual uses the following formats to highlight special messages:  
Note: This format is used to highlight information of importance or special interest.  
Tip: This format is used to highlight a procedure that will save time or resources.  
Warning: Ignoring this type of note may result in a malfunction or damage to the  
equipment.  
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Scope. This manual is written for the CG814WG v3 Gateway according to these  
specifications:  
Product Version  
CG814WG v3 Wireless Cable Modem Gateway  
June 2007  
Manual Publication Date  
For more information about network, Internet, firewall, and VPN technologies, see the links to the  
NETGEAR website in Appendix B, “Related Documents”.  
Note: Product updates are available on the NETGEAR, Inc. website at  
How to Use This Manual  
The HTML version of this manual includes the following:  
Buttons,  
at a time  
and  
, for browsing forwards or backwards through the manual one page  
A
button that displays the table of contents and an  
button. Double-click on a  
link in the table of contents or index to navigate directly to where the topic is described in the  
manual.  
A
model.  
button to access the full NETGEAR, Inc. online knowledge base for the product  
Links to PDF versions of the full manual and individual chapters.  
How to Print this Manual  
To print this manual you can choose one of the following several options, according to your needs.  
Printing a Page in the HTML View.  
Each page in the HTML version of the manual is dedicated to a major topic. Use the Print  
button on the browser toolbar to print the page contents.  
Printing a Chapter.  
Use the PDF of This Chapter link at the top left of any page.  
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Click the PDF of This Chapter link at the top left of any page in the chapter you want to  
print. The PDF version of the chapter you were viewing opens in a browser window.  
Your computer must have the free Adobe Acrobat reader installed in order to view and  
print PDF files. The Acrobat reader is available on the Adobe website at  
Click the print icon in the upper left of the window.  
Tip: If your printer supports printing two pages on a single sheet of paper, you can  
save paper and printer ink by selecting this feature.  
Printing the Full Manual.  
Use the Complete PDF Manual link at the top left of any page.  
Click the Complete PDF Manual link at the top left of any page in the manual. The PDF  
version of the complete manual opens in a browser window.  
Click the print icon in the upper left of the window.  
Tip: If your printer supports printing two pages on a single sheet of paper, you can  
save paper and printer ink by selecting this feature.  
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Chapter 1  
Connecting the Gateway to the Internet  
This chapter describes how to set up the CG814WG v3 Gateway on your Local Area Network  
(LAN), connect to the Internet, and perform basic configuration.  
Package Contents  
The product package should contain the following items:  
CG814WG v3 Wireless Cable Modem Gateway  
AC power adapter  
Category 5 (CAT5) Ethernet cable  
USB cable  
If any of the parts are incorrect, missing, or damaged, contact your NETGEAR dealer. Keep the  
carton, including the original packing materials, in case you need to return the product for repair.  
Front Panel  
The front panel of the CG814WG v3 contains status LEDs.  
Figure 1-1  
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You can use the LEDs to verify connections. Table 1-1 lists and describes each LED on the front  
panel of the CG814WG v3 Gateway.  
Table 1-1. LED Descriptions  
LED  
Description  
Power  
On: Power is supplied to the gateway.  
Off: Power is not supplied to the gateway.  
Cable Link  
On (green): Configuration of the cable interface by your cable service provider  
is complete.  
Off: Configuration of the cable interface is still in progress.  
Upstream  
Traffic  
Blink: Data is being transmitted to the cable interface.  
Off: The cable interface is idle.  
Downstream • Blink: Data is being received from the cable interface.  
Traffic  
Off: The cable interface is idle.  
Wireless  
On: The wireless Access Point is operating normally.  
Blink: Data is being transmitted or received on the wireless interface.  
LAN  
(Local Area  
Network)  
On (green): The port has detected link with a 100 Mbps device.  
Blink (green): Data is being transmitted or received at 100 Mbps.  
On (yellow): The Local port has detected link with a 10 Mbps device.  
Blink (yellow): Data is being transmitted or received at 10 Mbps.  
Off: No link is detected on this port.  
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Rear Panel  
The rear panel of the CG814WG v3 contains the connections identified below:  
wireless antenna  
USB port  
reset button  
coaxial cable to your cable service provider  
4 Ethernet LAN ports  
AC power adapter input  
Figure 1-2  
What You Need Before You Begin  
You need these three things before you can connect your gateway to the Internet:  
A computer properly connected to the gateway as explained below.  
Active Data Over Cable Internet service provided by cable modem account.  
The Internet Service Provider (ISP) configuration information for your cable modem account.  
Hardware Requirements  
The CG814WG v3 Gateway connects to your LAN using either its twisted-pair Ethernet, USB or  
802.11b or 802.11g wireless port.  
To use the CG814WG v3 Gateway on your network, each computer must have either an installed  
Ethernet Network Interface Card (NIC), USB Host port or 802.11b or 802.11g wireless adapter. If  
the computer will connect to your network at 100 Mbps, you must use a Category 5 (CAT5) cable  
such as the one provided with your gateway.  
Connecting the Gateway to the Internet  
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LAN Configuration Requirements  
the gateway which is set to automatically get its TCP/IP configuration from the gateway via  
DHCP.  
Note: For help with DHCP configuration, see the link to the online document “Internet  
Networking and TCP/IP Addressing” in Appendix B.  
Internet Configuration Requirements  
Depending on how your ISP set up your Internet account, you will need one or more of these  
configuration settings to connect your gateway to the Internet:  
Host and Domain Names  
ISP Domain Name Server (DNS) Addresses  
Fixed or Static IP Address  
Note: Install and set up the CG814WG v3 Gateway using an Ethernet or USB  
connection to your computer first. Then configure the wireless settings. See  
Chapter 2, “Wireless Configuration” for instructions for wireless settings.  
Installation  
Follow these steps to install your gateway:  
1. Connect the gateway.  
a. Turn off your computer.  
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b. Using the coaxial cable provided by your cable company, connect the CG814WG v3 cable  
port (A) to your cable line splitter or outlet.  
A
Figure 1-3  
c. Connect the gateway to your computer with either an Ethernet or USB cable.  
Note: The USB connection option is only available for Windows PCs. Also,  
Windows 95 does not support USB without special operating system  
upgrades and patches.  
For an Ethernet connection, use the Ethernet cable that shipped with your gateway to  
connect a LAN port (B) to the Ethernet adapter in your computer.  
B
Figure 1-4  
Connecting the Gateway to the Internet  
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Note: The CG814WG v3 Gateway uses Auto UplinkTM technology. Each local  
Ethernet port senses whether the cable plugged into the port is attached to  
a PC, or is attached to a switch or hub, which requires an uplink  
connection. The port configures itself to accommodate either type of  
cable. This eliminates the need for crossover cables.  
For a USB connection, connect the USB cable to the USB port on your modem and to a  
USB port on your computer.  
d. Connect the power adapter to the CG814WG v3, and plug it into an outlet.  
e. Turn on your computer. If software usually logs you in to your Internet connection, do not  
run that software or cancel it if it starts automatically.  
f. Wait about 30 seconds for the lights to stop blinking, and then verify the following:  
The power light is lit after turning on the gateway.  
The cable link light is solid green, indicating a link has been established to the cable  
network.  
The LAN lights are lit for any connected computers.  
2. For an Ethernet connection, go to Step 3. For a USB connection, install the USB driver.  
a. For a USB connection you must install the USB driver. Insert the NETGEAR CD that  
came with your gateway into the CD drive of your computer.  
The Found New Hardware Wizard detects the gateway and prompts for the driver.  
Figure 1-5  
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b. Browse to the Resource CD and install the USB driver by clicking through the Windows  
wizard prompts.  
3. Log in to the Gateway  
Note: To connect to the gateway, your computer must be configured to obtain an IP  
address automatically via DHCP. For instructions on how to do this, see the  
link to “Preparing a Computer for Network Access” in Appendix B.  
a. Using the computer that you first used to access your cable modem Internet service,  
connect to the gateway by typing http://192.168.0.1 in the address field of your Internet  
browser. A login window opens.  
Figure 1-6  
Note: For security reasons, the gateway has two sets of user names and passwords:  
one for a parent and one for children. Only the parent’s login can be used to set  
up Parental Control and MAC Filtering. The child’s login can configure all  
other features of the gateway.  
b. Log in to the gateway.  
To log in as the parent, enter superuser for the user name and password for the  
password, both in lower case letters.  
To log in as the child, enter admin for the user name and password for the password,  
both in lower case letters.  
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Note: If you cannot connect to the gateway, see “Basic Functions” in Chapter 5.  
When you connect to the gateway the Gateway status screen opens.  
Figure 1-7  
4. Enter your Network Configuration.  
WAN IP Address: The IP Address that you would for your gateway in dotted decimal  
notation.  
WAN Subnet Mask: The network number portion of an IP address. Unless you are  
implementing subnetting, use 255.255.0.0 as the subnet mask.  
WAN Default Gateway: This is the ISP’s router to which your gateway will connect.  
WAN Primary and Secondary DNS: A DNS server is a host on the Internet that  
your ISP transfers the IP address of one or two DNS servers to your gateway during login.  
If the ISP does not transfer an address, you must obtain it from the ISP and enter it  
manually here. If you enter an address here, you should reboot your PCs after configuring  
the gateway.  
5. Click Apply to save your settings.  
For more information about the Gateway Status screen see“Gateway Status” in Chapter 4.  
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Chapter 2  
Wireless Configuration  
This chapter describes how to configure the wireless features of your CG814WG v3 Gateway. In  
planning your wireless network, you should consider the level of security required. You should  
also select the physical placement of your firewall in order to maximize the network speed.  
Note: If you are configuring the gateway from a wireless PC and you change the  
connection when you click Apply. You must then change the wireless settings of  
your PC to match the gateway’s new settings.  
Set up wireless features for the gateway in this order:  
1. Install the gateway as described in Chapter 1, “Connecting the Gateway to the Internet”. The  
gateway should be working on your LAN before you set up the wireless features.  
2. Plan the location for the gateway based on considerations in “Wireless Placement and Range  
Guidelines” on page 2-2.  
of your settings.  
4. Enter the wireless settings, and verify wireless connectivity as described in “Viewing or  
Changing Wireless Settings” on page 2-4.  
5. Set up wireless security as described in “Turning on Access Control to Restrict Access by  
MAC Address” on page 2-6, , or “How to Configure WPA” on page 2-10.  
For more information about wireless technology, see the link to “Wireless Communications” in  
Appendix B.  
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Wireless Placement and Range Guidelines  
The range of your wireless connection can vary significantly based on the physical placement of  
the gateway. The latency, data throughput performance, and notebook power consumption of  
wireless adapters also vary depending on your configuration choices.  
For best results, place your gateway:  
Near the center of the area in which your PCs will operate.  
In an elevated location such as a high shelf where the wirelessly connected PCs have line-of-  
sight access (even if through walls).  
Away from sources of interference, such as PCs, microwave ovens, and 2.4 GHz cordless  
phones.  
Away from large metal surfaces.  
Put the antenna in a vertical position to provide the best side-to-side coverage. Put the antenna  
in a horizontal position to provide the best up-and-down coverage.  
If using multiple access points, it is better if adjacent access points use different radio  
frequency channels to reduce interference. The recommended channel spacing between  
adjacent access points is 5 channels (for example, use channels 1 and 6, or 6 and 11).  
The time it takes to establish a wireless connection can vary depending on both your security  
settings and placement. WEP connections can take slightly longer to establish. Also, WEP  
encryption can consume more battery power on a notebook computer.  
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SSID and Wireless Security Settings Form  
For a new wireless network, print or copy this form and fill in the settings. For an existing wireless  
network, the person who set up or is responsible for the network can get the settings. Be sure to set  
the Regulatory Domain correctly as the first step.  
SSID. The Service Set Identification (SSID) identifies the wireless local area network.  
NETGEAR is the default SSID. However, you may customize it by using up to 32  
alphanumeric characters. Write your customized SSID on the line below.  
____________________________________________________  
The SSID in the gateway is the SSID you configure in the wireless adapter card. All wireless  
nodes in the same network must be configured with the same SSID.  
Authentication.  
Circle one: Open System or Shared Key. Choose Shared Key for more security.  
To use Shared Key, all devices in the network must be set to Shared Key and have the same  
keys in the same positions as those in the CG814WG v3.  
WEP Encryption Keys. For all four keys, choose the Key Size. Circle one: 64, or 128 bits.  
Key 1: ______________________________________________  
Key 2: ______________________________________________  
Key 3: ______________________________________________  
Key 4: ______________________________________________  
WPA-PSK (Pre-Shared Key) and WPA2-PSK. Record the WPA-PSK or WPA2-PSK key.  
Key: _____________________________________________ (8-63 characters)  
WPA and WPA2 RADIUS Settings. For WPA and WPA2, record the following settings for  
the primary and secondary RADIUS servers.  
Server Name/IP Address: _____________________________________________  
Port: _____________________________________________  
Shared Key: _____________________________________________  
Use the procedures described in the following sections to configure the CG814WG v3. Store this  
information in a safe place.  
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Viewing or Changing Wireless Settings  
You can view or change the wireless settings for the gateway. If you want to make changes, make  
sure to note the current settings first. See the “SSID and Wireless Security Settings Form” on  
page 2-3.  
1. Log in to the gateway using its default address of http://192.168.0.1 or at whatever IP address  
the unit is currently configured Use the default user name of admin and default password of  
password, or whatever password you have set up.  
2. Click the Wireless Settings link to go to the Wireless Settings screen.  
Figure 2-1  
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The settings in the Wireless Settings screen are explained in the following table.  
Table 2-1. Wireless Settings  
Settings  
Description  
Wireless Network  
Name (SSID)  
The SSID is also known as the wireless network  
name. Enter a 32-character (maximum) name in this  
field. The characters are case sensitive.  
In a setting where there is more than one wireless  
network, different wireless network names provide a  
means for separating the traffic. Any device you want  
to participate in a wireless network must use the  
SSID.  
Region  
The location where the gateway is used.  
Channel  
The wireless channel used by the gateway. The  
default is channel 6.  
You should not need to change the wireless channel  
unless you experience interference (shown by lost  
connections and/or slow data transfers). Should this  
happen, you may need to experiment with different  
channels to see which is the best.  
Wireless Access  
Point  
Enable Wireless Access Point On by default, you can also turn off the wireless radio  
to disable access through this device. This can be  
helpful for configuration, network tuning, or  
troubleshooting activities.  
Allow Broadcast Name (SSID) On by default, the gateway broadcasts its SSID,  
allowing wireless stations which have a “null” (blank)  
SSID to adopt the correct SSID. The default SSID is  
NETGEAR.  
If you disable broadcast of the SSID, only devices  
that have the correct SSID can connect. This nullifies  
the wireless network “discovery” feature of some  
products such as Windows XP, but the data is still  
fully exposed to a determined snoop using  
enable wireless security.  
Wireless Card  
Access List  
Turn Access Control On  
Access control is disabled by default so that any  
computer that is configured with the correct SSID  
can connect. For information about access control,  
see “Turning on Access Control to Restrict Access by  
MAC Address” on page 2-6.  
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Table 2-1. Wireless Settings (continued)  
Settings  
Description  
Security Options  
Disable  
Wireless security is disabled by default. After the  
gateway is connected to the Internet, NETGEAR  
strongly recommends that you implement wireless  
security.  
• WEP (Wired Equivalent  
Privacy) 64-bit encryption  
• WEP (Wired Equivalent  
Wired Equivalent Privacy (WEP) data encryption  
provides data security. WEP Shared Key  
Privacy) 128-bit encryption authentication and WEP data encryption will block all  
but the most determined eavesdropper.  
You can select 64-bit or 128-bit encryption. See “How  
to Configure WEP (Wired Equivalent Privacy)” on  
page 2-8.  
WPA-PSK  
WPA2  
Wi-Fi Protected Access (WPA) data encryption  
provides data security. The very strong  
WPA Enterprise  
rekeying of WPA make it virtually impossible to  
compromise. Because this is a new standard,  
wireless device driver and software availability may  
be limited.  
WPA-PSK uses authentication from a Radius  
server. WPA2 uses a pre-shared key passphrase.  
See “How to Configure WPA” on page 2-10.  
Turning on Access Control to Restrict Access by MAC  
Address  
By default, any wireless PC that is configured with the correct SSID and WEP/WPA settings will  
be allowed access to your wireless network. For increased security, you can restrict access to the  
wireless network to only allow specific PCs based on their MAC addresses.  
You can restrict access to only trusted PCs so that unknown PCs cannot wirelessly connect to the  
CG814WG v3 Gateway. MAC address filtering adds an obstacle against unwanted access to your  
network, but the data broadcast over the wireless link is fully exposed.  
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To restrict access based on MAC addresses:  
1. Connect to the gateway and log in as described in “Viewing or Changing Wireless Settings” on  
page 2-4.  
Note: If you are configuring the gateway from a wireless computer, make sure to add  
your computer’s MAC address to the Access List. Otherwise you will lose your  
wireless connection when you click Apply. You must then access the gateway  
from a wired computer, or from a wireless computer that is on the access  
control list, to make any further changes.  
2. Click Wireless Settings, and then select the Turn Access Control On check box.  
When you enable access control, the access point only accepts connections from clients on the  
selected access control list. This provides an additional layer of security.  
3. Click the Setup Access List button to display the Access List.  
Figure 2-2  
The Access List displays a list of wireless clients that will have access to the wireless network  
when the list is enabled.  
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4. Adjust the list as needed for your network. You can add a devices to the Access List using  
either of the following methods:  
a. If the computer is in the Connected Wireless Devices table, click the radio button of that  
computer to capture its MAC address; or  
b. Specify the MAC address of the device to be added to the Access List in the Add Access  
Filter fields. The MAC address can usually be found on the bottom of the wireless device.  
Note: If no Device Name appears when you enter the MAC address, you can type a  
descriptive name for the computer that you are adding.  
c. Click Add.  
4. Click Apply to save these settings. Now, only devices on this list will be allowed to wirelessly  
connect to the gateway.  
How to Configure WEP (Wired Equivalent Privacy)  
Note: If you use a wireless computer to configure wireless security settings, you will be  
disconnected when you click Apply. Reconfigure your wireless computer to match  
the new settings, or access the gateway from a wired computer to make further  
changes.  
To configure WEP data encryption:  
1. Log in to the gateway using its default address of http://192.168.0.1 or at whatever IP address  
the unit is currently configured. Use the default user name of admin and default password of  
password, or the password you have set up.  
2. Click the Wireless Settings link to go to the Wireless Settings screen.  
3. Depending on the encryption strength that you want, select one of these options:  
WEP (Wired Equivalent Privacy) 64-bit encryption  
WEP (Wired Equivalent Privacy) 128-bit encryption  
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Settings for WEP encryption are shown on the screen:  
Figure 2-3  
4. Select the Authentication. Choose Open System, Shared Key, or Open System or Shared  
Key. The default is Open System.  
5. Enter the encryption settings:  
WEP PassPhrase: To use a passphrase to generate the keys, enter a passphrase and click  
Generate. This automatically creates the keys. Wireless stations must use the passphrase or  
keys to access the gateway.  
Key 1-Key4: You can manually enter the four data encryption keys. These values must be  
identical on all computers and access points in your network. Enter ten hexadecimal digits  
(any combination of 0-9, a-f, or A-F).  
Select which of the four keys will be the default. Data transmissions are always encrypted  
using the default key. The other keys can only be used to decrypt received data. The four  
entries are disabled if WPA-PSK or WPA authentication is selected.  
6. Click Apply to save your settings.  
Note: If you use a wireless computer to configure WEP settings, you will be  
disconnected when you click Apply. Reconfigure your wireless adapter to match  
the new settings or access the gateway from a wired computer to make any further  
changes.  
Wireless Configuration  
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How to Configure WPA  
Note: Not all wireless adapters support WPA. Furthermore, client software is required on  
the client. Windows XP and Windows 2000 with Service Pack 3 or above do  
include the client software that supports WPA. The wireless adapter hardware and  
driver must also support WPA. Consult the product documentation for your  
wireless adapter and WPA client software for instructions on configuring WPA  
settings.  
To configure WPA in the gateway:  
1. Log in to the gateway at the default LAN address of http://192.168.0.1 with the default user  
name of admin and default password of password, or using whatever LAN address and  
password you have set up.  
2. Click Wireless Settings to go to the Wireless Settings screen.  
3. Select WPA-PSK, WPA2-PSK, or WPA (Enterprise).  
The settings shown on the screen depend on which Security Option you select.  
WPA-PSK  
WPA2-PSK  
WPA (Enterprise)  
Figure 2-4  
4. For WPA-PSK or WPA2-PSK, enter the Passphrase. Click Apply to save your settings.  
5. If you are using WPA (Enterprise) then enter the settings for the Radius Server. These settings  
are required for communication with the primary Radius server. A secondary Radius server  
can be configured, which is used on failure on Primary Radius Server.  
Primary Radius Server IP Address: The IP address of the Radius Server. The default is  
0.0.0.0  
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Radius Port: Port number of the Radius Server. The default is 1812.  
Shared Key: This is shared between the Wireless Access Point and the Radius Server  
while authenticating the supplicant.  
6. Click Apply to save your settings.  
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Chapter 3  
Content Filtering and Firewall Rules  
This chapter describes how to use Content Filtering and Firewall Rules for the CG814WG v3  
Gateway to protect your network.  
Note: You must log in as a parent (superuser) in order to access Content Filtering  
features.  
Content Filtering  
Figure 3-1  
Content Filtering features include Logs, Block Sites, and Services. Firewall rules can also be used  
for content filtering.  
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Logs  
A log is a detailed record of the Denial of Service (DoS) attacks directed at your network. You can  
use e-mail notification to receive these logs in an e-mail message. If you do not have e-mail  
notification set up you can connect to the gateway to view the logs.  
Figure 3-2  
To receive logs by e-mail:  
1. For the Contact Email Address, type an e-mail address to which the logs will be sent. Use a  
full e-mail address (for example, ChrisXY@myISP.com).  
2. For the SMTP Server Name, type the outgoing SMTP mail server of your ISP (for example,  
mail.myISP.com). If you leave this box blank, no alerts or logs will be sent.  
3. Select the E-mail Alerts Enable check box.  
4. Click Apply.  
For information about event logs, see “Event Log” in Chapter 4.  
Blocking Keywords, Sites, and Services  
The gateway provides a variety of options for blocking Internet based content and  
communications services. With its content filtering feature, the CG814WG v3 Gateway  
prevents objectionable content from reaching your PCs. The CG814WG v3 allows you to control  
access to Internet content by screening for keywords within Web addresses. It also has the  
capability to block access to all sites except those that are explicitly allowed. Key content  
filtering options include:  
Blocking access from your LAN to Internet locations that contain keywords that your specify.  
Blocking access to websites that you specify as off-limits.  
Allowing access to only websites that you specify as allowed.  
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Blocking Keywords and Domains  
The CG814WG v3 Gateway allows you to restrict access to Internet content based on functions  
such as Web address keywords and Web domains. A domain name is the name of a particular  
NETGEAR.com.  
To block keywords and domains:  
1. Log in to the gateway at its default LAN address of http://192.168.0.1 with its parent default  
user name of superuser, default password of password, or using whatever password and LAN  
address you have chosen for the gateway in parent mode.  
2. Click the Block Sites link under the Content Filtering heading.  
Figure 3-3  
3. To use Keyword Blocking, select the Keyword Blocking Enable check box and then you can  
enter up to eight keywords.  
To enter a keyword, type it, and then click Add Keyword. The keyword will be shown in  
the Keyword List.  
blocked.  
If the keyword “.com” is specified, only websites with other domain suffixes (such as .edu  
or .gov) can be viewed.  
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Enter the keyword “.” to block all Internet browsing access.  
4. You can use the Domain List to create a list of allowed domains, or to create a list of denied  
domains. Select the Domain Blocking Enable check box. Then you can add domains.  
To add a domain, type the domain, and then click Add Domain. It is added to the Domain  
List.  
To block access to the domains in the Domain List, select Deny Domains.  
For example, if the domain “badstuff.com” is specified, the URL <http://  
To allow access to only the domains in the Domain List, select Allow Domains. If the  
domain “goodstuff.com” is specified, you will be able to access only sites on the goodstuff  
site.  
5. Click Apply to save your settings.  
Services  
You can use the Services screen to control which services are enabled or disabled:  
Figure 3-4  
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To enable a service, select its check box. To disable a service, clear its check box. The following  
table describes the services.  
Table 3-1. Services  
Settings  
Description  
Firewall Features  
When Firewall Features are enabled, the gateway will  
perform Stateful Packet Inspection (SPI) and protect  
against Denial of Service (DoS) attacks.  
VPN Pass Through  
Multicast  
When VPN Pass through is enabled, IPSec and PPTP  
traffic will be forwarded. When it is disabled, this traffic will  
be blocked.  
Web Features  
Filter Proxy  
Filter Cookies  
Filter Java Applets  
Filter ActiveX  
Filter Popup Windows  
Block Fragmented IP Packets  
Firewall Rules  
A firewall has two default rules, one for inbound traffic (WAN to LAN) and one for outbound  
traffic.  
Inbound Rules (Port Forwarding): These rules restrict access from outsiders. The default  
rule is to block all access from outside except responses to requests from the LAN side. You  
can use Port Forwarding to add predefined or custom rules to specify exceptions to the default  
rule.  
Outbound Rules (Port Blocking): These rules control access to outside resources from local  
users.The default rule is to allow all access from the LAN side to the outside. You can use Port  
Blocking to add predefined or custom rules to specify exceptions to the default rules.  
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The Firewall Rules screen is shown below:  
Figure 3-5  
Port Forwarding  
With port forwarding, you can make local computers or servers available to the Internet for  
different services. For example, FTP uses TCP ports 20 and 21. The selections on this screen are:  
Active Forwarding Rules: This table displays a list of ports that are currently forwarded.  
Choose Predefined Service: Select a predefined service from the pull-down menu.  
Add Custom Rules: You can set up a custom service that is not in the list of predefined  
services.  
To access the local computer from the Internet, you must use the WAN address of your  
gateway, which can be found on the Basic Settings page.  
Because the gateway uses Network Address Translation (NAT), your network presents only one IP  
address to the Internet, and outside users cannot directly address any of your local computers.  
However, by defining an inbound rule you can make a local server (for example, a web server or  
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game server) visible and available to the Internet. The rule tells the gateway to direct inbound  
traffic for a particular service to one local server based on the destination port number. This is also  
known as Port Forwarding.  
Note: Some residential broadband ISP accounts do not allow you to run any server  
processes (such as a Web or FTP server) from your location. Your ISP may  
periodically check for servers and may suspend your account if it discovers any  
active services at your location. If you are unsure, refer to the Acceptable Use  
Policy of your ISP.  
Considerations for Port Forwarding  
If the IP address of the local server PC is assigned by DHCP, it may change when the PC is  
rebooted. To avoid this, you can assign a static IP address to your server outside the range that  
is assigned by DHCP, but in the same subnet as the rest of your LAN. By default, the IP  
addresses in the range of 192.168.0.2 through 192.168.0.9 are reserved for this.  
Local PCs must access the local server using the PCs’ local LAN address (192.168.0.XXX, by  
default). Attempts by local PCs to access the server using the external WAN IP address will  
fail.  
Remember that allowing inbound services opens holes in your firewall. Only enable those ports  
that are necessary for your network. The following are two application examples of inbound rules.  
Port Blocking  
You can use this screen to block outbound traffic on specific ports.  
Note: Any outbound traffic which is not blocked by rules you create will be allowed by  
the default rule.  
Active Filters: This table displays a list of ports that are currently blocked.  
Add Predefined Service: To block outbound traffic, select the service you would like to block  
from the drop-down list of predefined services. Click Add.  
Add Custom Service: If the service you would like to block is not in the predefined list, you  
can add a custom service. Enter the range of ports you would like to block and select whether  
the ports are TCP, UDP or Both. Click Add.  
To delete an existing rule, select its button on the left side of the table and click Delete.  
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Chapter 4  
Managing Your Network  
This chapter describes how to perform network management tasks with your CG814WG v3  
Gateway. When you log in to the gateway you will see these tasks grouped under the Maintenance  
heading and Advanced heading.  
Note: For information about Firewall Rules, see Chapter 3, “Content Filtering and  
Firewall Rules”.  
Log in to the gateway at its default LAN address of http://192.168.0.1 with its default User Name  
of admin, default password of password, or using whatever password and LAN address you have  
chosen for the gateway.  
Maintenance  
The CG814WG v3 Gateway Maintenance screens provide a variety of status and usage  
information.  
Figure 4-1  
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Gateway Status  
Select Gateway Status to go to this screen:  
Figure 4-2  
The Gateway Status screen fields are explained in the following table.  
Table 4-1. Gateway Status Fields  
Field  
Description  
Information Standard Specification  
Compliant  
The specification to which the gateway’s cable interface is  
compatible.  
Hardware Version  
Software Version  
The hardware version of the gateway.  
The software version of the gateway.  
Cable Modem MAC Address The MAC address used by the cable modem port of the  
gateway. This MAC address may need to be registered with  
your Cable Service Provider.  
Device MAC Address  
The MAC address of the router side of the gateway. This is the  
equivalent of your PC when connected to a cable modem. You  
can use the MAC Cloning feature to replace this MAC address  
with another address when sending packets to the WAN.  
Cable Modem Serial Number The serial number of the gateway hardware.  
CM Certificate If the Cable Modem certificate is Installed, it is possible for the  
service provider to upgrade your Data Over Cable service  
securely.  
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Table 4-1. Gateway Status Fields (continued)  
Field  
Description  
Status  
System Up Time  
This is the time since the gateway has registered with your  
cable service provider.  
Network Access  
This field will change to Allowed when the registration with your  
cable service provider is complete.  
Cable Modem IP Address  
The IP address of you gateway, as seen from the Internet.  
Signal Status  
You can use the Signal Status page to track your gateway’s initialization procedure, and to get  
details on the Downstream and Upstream cable channel. After the cable modem is initialized you  
can see the current time.  
Figure 4-3  
The gateway goes through the following steps to be provisioned  
1. Acquire and lock Downstream Channel  
2. Acquire upstream parameters and range.  
3. Lock Upstream Channel  
4. Acquire IP Address through DHCP  
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Set Password  
For security reasons, the gateway has its own user name and password. Also, after a period of  
inactivity for a set length of time, the administrator login will automatically disconnect. When  
prompted, enter admin for the gateway user name and password for the gateway password. You  
can use procedures below to change the gateway's password and the amount of time for the  
administrator’s login timeout.  
Note: The user name and password are not the same as any user name or password your  
may use to log in to your Internet connection.  
NETGEAR recommends that you change this password to a more secure password. The ideal  
password should contain no dictionary words from any language, and should be a mixture of both  
upper and lower case letters, numbers, and symbols. Your password can be up to 30 characters.  
To change the password:  
1. Log in to the gateway at its default LAN address of http://192.168.0.1 with its default User  
Name of admin, default password of password, or using whatever password and LAN  
address you have chosen for the gateway.  
2. Select Set Password.  
Figure 4-4  
3. To change the password, first enter the old password, and then enter the new password twice.  
4. Click Apply to save your changes.  
Note: After changing the password, you will be required to log in again to continue the  
configuration. If you have backed up the gateway settings previously, you  
should do a new backup so that the saved settings file includes the new  
password.  
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Backup Settings  
The configuration settings of the gateway are stored in a configuration file in the gateway. You can  
use the Backup Settings screen to work with the configuration file.  
Click Backup to go to the Backup Settings screen:  
Figure 4-5  
You can save a copy of the current configuration settings, restore saved settings, or reset the  
gateway to the factory default settings.  
Note: When restoring or erasing settings do not interrupt the process by going on online,  
turning off the gateway, or shutting down the computer.  
Restoring Saved Settings  
To restore settings from a backup file:  
1. Click Browse.  
2. Locate and select the previously saved backup file (by default, CG814.cfg).  
3. Click Restore.  
A message notifies you when the gateway has been restored to previous settings.  
The gateway restarts, which takes about one minute.  
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Resetting to Factory Default Settings  
You can erase the gateway configuration and reset it to the factory default settings. The factory  
default settings are shown in See “Factory Default Settings” in Appendix A.  
Note: If you do not know the login password or IP address, you can use the reset  
button on the rear panel of the gateway to restore the factory default settings.  
On the Backup Settings screen, select Yes for Restore Factory Defaults and then click Apply.  
The gateway reboots automatically. The gateway’s password will be password, the LAN IP  
address will be 192.168.0.1, and the gateway’s DHCP client will be enabled.  
Event Log  
The gateway logs security-related events such as denied incoming service requests and hacker  
probes. You can enable e-mail notification to receive these logs in an e-mail message.  
Figure 4-6  
For information about e-mail notifications, see “Logs” in Chapter 3.  
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Advanced Settings  
These features are for advanced users.  
Figure 4-7  
For Firewall Rules, see Chapter 3, “Content Filtering and Firewall Rules”.  
WAN Setup  
You can use this screen to set the gateway to respond to a Ping, specify a DMZ Address, and view  
or change the MTU Size setting.  
Figure 4-8  
Respond to Ping on WAN: If you want the gateway to respond to a Ping from the Internet,  
select this check box and then click Apply. This can be used as a diagnostic tool.  
DMZ Address: Specifying a DMZ Address allows you to set up a PC that is available to  
anyone on the Internet for services that you have not defined. There are security issues with  
doing this, so only do this if you are willing to risk open access. If you do not assign a DMZ  
address, the gateway discards any undefined service request.  
— To assign a DMZ Address, type the value in the DMZ Address field and then click Apply.  
— To remove a DMZ Address, type 0 in the DMZ Address field, and then click Apply.  
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MTU Size : The normal MTU (Maximum Transmit Unit) value for most Ethernet networks is  
1500 Bytes. For some ISPs you may need to reduce the MTU. But this is rarely required, and  
should not be done unless you are sure it is necessary for your ISP connection.  
Dynamic DNS  
A Dynamic DNS Service provides a central public database where information (such as e-mail  
addresses, host names and IP addresses) can be stored and retrieved. The Dynamic DNS server  
also stores password-protected information and accepts queries based on e-mail addresses.  
If you want to use a Dynamic DNS service, you must register for it. The Dynamic DNS client  
service provider will give you a password or key.  
Figure 4-9  
To set up Dynamic DNS:  
1. Select the Use a Dynamic DNS Service check box if you have registered with a DDNS  
service provider.  
2. Select the name of your dynamic DNS Service Provider.  
3. Type the Host Name that your dynamic DNS service provider gave you.  
The DDNS service provider may call this the domain name.  
4. Type the User Name for your Dynamic DNS account.  
5. Type the Password (or key) for your Dynamic DNS account.  
6. If you have DYNDNS as your Dynamic DNS service provider, you can select the Use  
Wildcards check box to activate this feature.  
7. Click Apply.  
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LAN IP Settings  
The LAN IP Setup screen allows configuration of LAN IP services such as the IP address of the  
gateway and DHCP.  
Figure 4-10  
You can use the LAN IP screen to configure your local area network. The DHCP and TCP/IP  
default values work in most cases.  
LAN IP Address: The LAN IP Address that you would like to assign for your gateway in  
dotted decimal notation (factory default: 192.168.0.1).  
Subnet Mask: The network number portion of an IP address. Unless you are implementing  
subnetting, use 255.255.255.0 as the subnet mask.  
DHCP Server: The gateway is set up by default as a DHCP (Dynamic Host Configuration  
Protocol) server, which provides the TCP/IP configuration for all the computers that are  
connected to the gateway.  
For more information about DHCP Server and DHCP Client Lease Info, see the online help.  
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Diagnostics  
You can use Diagnostics to test connectivity to PC using the Ping command, perform a DNS  
lookup, display the Routing Table and reboot the router. Click Diagnostics to go to this screen:  
Figure 4-11  
Ping Test  
To perform a ping test:  
1. For the Ping Target, enter the IP address of the computer that you would like to ping.  
2. If you would like to specify additional details, you can set the Ping Size, No. of Ping and Ping  
Interval.  
3. Click Start Test.  
4. Click REFRESH to see the results of the Ping test.  
Perform a DNS Lookup  
address. If you need the IP address of a Web, FTP, Mail or other Server on the Internet, you can do  
a DNS lookup to find the IP address.  
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Display the Routing Table  
This operation will display the internal routing table. This information is used by Technical  
Support and other staff who understand Routing Tables.  
Reboot the Router  
Use this button to perform a remote reboot (restart). You can use this if the Router seems to have  
become unstable or is not operating normally.  
Note: Rebooting will break any existing connections either to the router or through the  
router. However, connections to the Internet will automatically be re-established  
when possible.  
Remote Management Access  
With Remote Management, you can allow a user or users on the Internet to configure, upgrade and  
check the status of your CG814WG v3 Gateway.  
To configure your gateway for Remote Management:  
1. Click Remote Management to go to this screen:  
Figure 4-12  
2. Select the Allow Remote Management check box.  
3. Specify the port number that will be used for accessing the management interface.  
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Web browser access normally uses the standard HTTP service port 80. For greater security,  
you can change the remote management Web interface to a custom port by entering that  
number in the box provided. Choose a number between 1024 and 65535, but do not use the  
number of any common service port. The default is 8080, which is a common alternate for  
HTTP.  
4. Click Apply to have your changes take effect.  
Revert to Factory Default Setting  
If you would like to erase settings but continue to allow access from the WAN after the settings  
have been erased, then select the Allow Remote Management after Factory Default Reset  
check box. Then click Erase.  
URL to Connect to This Device  
To manage this gateway via the Internet, you need to its public IP Address, as seen from the  
Internet. This public IP Address is allocated by your ISP, and is shown on this screen. But if your  
ISP account uses a dynamic IP Address, the address can change each time you connect to your ISP.  
There are two solutions to this problem:  
Have your ISP allocate you a Fixed IP address.  
Use the Dynamic DNS feature so you can connect using a domain name, rather than an IP  
address. See “Dynamic DNS” on page 4-8.  
UPnP  
Universal Plug and Play (UPnP) helps devices, such as Internet appliances and computers, access  
the network and connect to other devices as needed. UPnP devices can automatically discover the  
services from other registered UPnP devices on the network.  
Figure 4-13  
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Turn UPnP On: The default setting is disabled. With this setting the router will not allow any  
device to automatically control the resources, such as port forwarding, of the router.  
Advertisement Period: How often the gateway advertises (broadcasts) its UPnP information.  
The default is 30 minutes.  
Advertisement Time to Live: The time to live for the advertisement is measured in hops  
(steps) for each UPnP packet sent.  
For more information, see the online help.  
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Chapter 5  
Troubleshooting  
This chapter gives information about troubleshooting your CG814WG v3 Wireless Cable Modem  
Have I connected the gateway correctly?  
Go to “Basic Functions” on page 5-1.  
I cannot access the gateway configuration with my browser.  
Go to “Connecting to the Gateway’s Main Menu” on page 5-2.  
Go to “Troubleshooting the ISP Connection” on page 5-3.  
I cannot remember the gateway’s configuration password or I want to clear the configuration  
and start over again.  
Go to “Backup Settings” in Chapter 4.  
Basic Functions  
After you turn on power to the gateway, the following sequence of events should occur:  
1. When power is first applied, verify that the Power LED is on.  
2. Verify that the numbered Ethernet LEDs come on momentarily.  
3. After approximately 30 seconds, verify that:  
The Local port Link LEDs are lit for any local ports that are connected.  
The Internet Link port LED is lit.  
If any of these conditions does not occur, refer to the appropriate following section.  
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Using LEDs to Troubleshoot  
The following table provides help when using the LEDs for troubleshooting.  
Table 5-1. Using LEDs to Troubleshoot  
LED Behavior  
Action  
All LEDS are off when the gateway Make sure that the power cord is properly connected to your gateway  
is plugged in.  
and that the power supply adapter is properly connected to a  
functioning power outlet.  
Check that you are using the 12VDC power adapter supplied by  
NETGEAR for this product.  
If the error persists, you have a hardware problem and should contact  
technical support.  
All LEDs Stay On  
• Clear the gateway’s configuration to factory defaults. This will set the  
gateway’s IP address to 192.168.0.1. See “Backup Settings” in  
Chapter 4.  
• If the error persists, you might have a hardware problem and should  
contact technical support.  
LAN LED is off for a port with an  
Ethernet connection.  
• Make sure that the Ethernet cable connections are secure at the  
gateway and at the hub or PC.  
• Make sure that power is turned on to the connected hub or PC.  
• Be sure you are using the correct cable:  
• When connecting the gateway’s Internet port to a cable or DSL  
modem, use the cable that was supplied with the cable or DSL  
modem. This cable could be a standard straight-through Ethernet  
cable or an Ethernet crossover cable.  
Cable Link LED is off and the  
gateway is connected to the cable  
television cable.  
• Make sure that the coaxial cable connections are secure at the  
gateway and at the wall jack.  
• Make sure that your cable internet service has been provisioned by  
your cable service provider. Your provider should verify that the signal  
quality is good enough for cable modem service.  
• Remove any excessive splitters you may have on your cable line. It  
may be necessary to run a “home run” back to the point where the  
cable enters your home.  
Connecting to the Gateway’s Main Menu  
If you are unable to access the gateway’s main menu from a computer on your local network,  
check the following:  
Check the Ethernet connection between the computer and the gateway as described in the  
previous section.  
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Make sure that your PC’s IP address is on the same subnet as the gateway. If you are using the  
recommended addressing scheme, your PC’s address should be in the range of 192.168.0.10 to  
192.168.0.254. Refer to the link to the online document “Internet Networking and TCP/IP  
Addressing” on page B-1 for help configuring your computer.  
Note: If your PC’s IP address is shown as 169.254.x.x:  
Recent versions of Windows and MacOS will generate and assign an IP address if  
the computer cannot reach a DHCP server. These auto-generated addresses are in  
the range of 169.254.x.x. If your IP address is in this range, check the connection  
from the PC to the gateway and reboot your PC.  
If your gateway’s IP address has been changed and you don’t know the current IP address,  
clear the gateway’s configuration to factory defaults. This will set the gateway’s IP address to  
192.168.0.1. This procedure is explained in “Diagnostics” on page 4-10.  
Make sure your browser has Java, JavaScript, or ActiveX enabled. If you are using Internet  
Explorer, click Refresh to be sure the Java applet is loaded.  
Try quitting the browser and launching it again.  
Make sure you are using the correct login information. The factory default login name is  
admin and the password is password. Make sure that CAPS LOCK is off when entering this  
information.  
If the gateway does not save changes you have made in the Web Configuration Interface, check the  
following:  
When entering configuration settings, be sure to click the APPLY button before moving to  
another menu or tab, or your changes are lost.  
Click the Refresh or Reload button in the Web browser. The changes may have occurred, but  
the Web browser may be caching the old configuration.  
If your gateway is unable to access the Internet and your Cable Link LED is on, you may need to  
register the Cable MAC Address and/or Device MAC Address of you gateway with your cable  
service provider. This is described in “Connecting the CG814WG v3 Gateway” on page 1-4.  
Additionally, your PC may not have the gateway configured as its TCP/IP gateway. If your PC  
obtains its information from the gateway by DHCP, reboot the PC and verify the gateway address.  
See the link to the online document “Internet Networking and TCP/IP Addressing” on page B-1  
Troubleshooting  
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Troubleshooting a TCP/IP Network Using a Ping Utility  
Most TCP/IP terminal devices and routers contain a ping utility that sends an echo request packet  
to the designated device. The device then responds with an echo reply. Troubleshooting a TCP/IP  
network is made easier by using the ping utility in your PC or workstation.  
Testing the LAN Path to Your Gateway  
You can use ping to verify that the LAN path to your gateway is set up correctly.  
To ping the gateway from a PC running Windows 95 or later:  
1. From the Windows toolbar, click on the Start button and select Run.  
2. In the field provided, type Ping followed by the IP address of the gateway, as in this example:  
ping 192.168.0.1  
3. Click OK.  
You should see a message like this one:  
Pinging <IP address> with 32 bytes of data  
If the path is working, you see this message:  
Reply from < IP address >: bytes=32 time=NN ms TTL=xxx  
If the path is not working, you see this message:  
If the path is not working correctly, you could have one of the following problems:  
Wrong physical connections.  
Make sure the LAN port LED is on. If the LED is off, see “Using LEDs to  
Troubleshoot” on page 5-2.  
Check that the corresponding Link LEDs are on for your network interface card and  
for the hub ports (if any) that are connected to your workstation and gateway.  
Wrong network configuration.  
Verify that the Ethernet card driver software and TCP/IP software are both installed  
and configured on your PC or workstation.  
Verify that the IP address for your gateway and your workstation are correct and that  
the addresses are on the same subnet.  
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Testing the Path from Your PC to a Remote Device  
After verifying that the LAN path works correctly, test the path from your PC to a remote device.  
From the Windows run menu, type:  
PING -n 10 <IP address>  
where <IP address> is the IP address of a remote device such as your ISP’s DNS server.  
If the path is functioning correctly, replies as in the previous section are displayed. If you do not  
Check that your PC has the IP address of your gateway listed as the default gateway. If the IP  
configuration of your PC is assigned by DHCP, this information will not be visible in your  
PC’s Network Control Panel. Verify that the IP address of the gateway is listed as the default  
gateway. See the link to the online document “Internet Networking and TCP/IP Addressing”  
on page B-1.  
Check to see that the network address of your PC (the portion of the IP address specified by  
the netmask) is different from the network address of the remote device.  
Check that your Cable Link LED is on.  
If your ISP assigned a host name to your PC, enter that host name as the Account Name in the  
Basic Settings menu.  
Troubleshooting  
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Appendix A  
Technical Specifications and Factory Default  
Settings  
This appendix provides technical specifications and default factory settings for the CG814WG v3  
Gateway.  
Technical Specifications  
Specification  
Description  
Network Protocol and Standards Compatibility  
Data and Routing Protocols:  
• TCP/IP  
• DHCP server and client  
• DNS relay  
• NAT (many-to-one)  
• TFTP client  
• VPN pass through (IPSec, PPTP)  
• North America (input): 120V, 60 Hz, input  
• All regions (output): 12 V DC @ 1.25A output, 15W maximum  
Power Adapter  
• Dimensions: 175 by 114 by 30 mm ( 6.9 by 4.5 by 1.2 in.)  
• Weight: 0.31 kg (0.68 lb)  
Physical Specifications  
• Operating temperature: 32°-140° F (0° to 40° C)  
• Operating humidity: 90% maximum relative humidity,  
noncondensing.  
Environmental Specifications  
Electromagnetic Emissions  
Meets requirements of FCC Part 15 Class B  
Interface Specifications  
LAN:  
10BASE-T or 100BASE-Tx, RJ-45  
USB 1.1 Function  
802.11g and 802.11b Wireless Access Point  
WAN  
DOCSIS 2.0. Downward compatible with DOCSIS 1.0 and  
DOCSIS 1.1.  
Wireless  
Technical Specifications and Factory Default Settings  
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Specification  
Radio Data Rates  
Description  
1, 2, 5.5, 6, 9, 12, 18, 24, 36, 48, 54, and 108 Mbps  
Auto Rate Sensing  
Frequency  
2.4-2.5 GHz  
Operating Frequency Ranges:  
2.412~2.462 GHz (US)  
2.412~2.472 GHz (Japan)  
2.412~2.472 GHz (Europe ETSI)  
Encryption:  
40-bit (also called 64-bit), 128-bit WEP data encryption,  
WPA-PSK(TKIP), and WPA2-PSK(AES)  
Factory Default Settings  
You can use the reset button located on the rear panel of your gateway to reset all settings to their  
factory defaults. This is called a hard reset. To perform a hard reset, push and hold the reset button  
for 5 seconds. The gateway will reboot and return to the settings shown in the following table.  
Table A-1. Default Configuration Settings  
Feature  
Default Behavior  
Gateway Login  
User login URL  
User name (case sensitive)  
admin  
superuser  
Login Password (case sensitive)  
password  
Local Network (LAN)  
Lan IP  
192.168.1.1  
255.255.255.0  
None  
Subnet Mask  
RIP direction  
RIP version  
Disabled  
RIP authentication  
DHCP server  
DHCP starting IP address  
DHCP Ending IP Address  
DMZ  
None  
Enabled  
192.168.1.2  
192.168.1.254  
Enabled or disabled  
GMT  
Time zone  
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Table A-1. Default Configuration Settings  
Feature  
Default Behavior  
Time Zone Adjusted for Daylight Saving Disabled  
Time  
SNMP  
Disabled  
Technical Specifications and Factory Default Settings  
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Table A-1. Default Configuration Settings  
Feature  
Firewall  
Default Behavior  
Inbound (communications coming in from Disabled (except traffic on port 80, the http port)  
the Internet)  
Outbound (communications going out to Enabled (all)  
the Internet)  
Source MAC filtering  
Internet Connection  
Disabled  
WAN MAC address  
WAN MTU size  
Use default hardware address  
1500  
Wireless  
Wireless Communication  
SSID Name  
Disabled  
NETGEAR  
Disabled  
Enabled  
Autoa  
Security  
Broadcast SSID  
Transmission Speed  
Country/Region  
RF Channel  
United States (varies by region)  
6 until the region is selected  
Operating Mode  
Data Rate  
g and b until the region is selected  
Best  
Output Power  
Full  
Access Point  
Enabled  
Authentication Type  
Wireless Card Access List  
Open System  
All wireless stations allowed  
a. Maximum Wireless signal rate derived from IEEE Standard 802.11 specifications. Actual throughput will  
vary. Network conditions and environmental factors, including volume of network traffic, building  
materials and construction, and network overhead, lower actual data throughput rate.  
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Appendix B  
Related Documents  
This appendix provides links to reference documents you can use to gain a more complete  
understanding of the technologies used in your NETGEAR product.  
Document  
Link  
Windows XP and Vista Wireless  
Configuration Utilities  
Internet Networking and TCP/IP  
Addressing  
Wireless Communications  
Preparing a Computer for  
Network Access  
Virtual Private Networking (VPN)  
Glossary  
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