Netgear Cg3100d2 Owners Manual

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Chapter 1 
Connecting the Gateway
This chapter describes how to configure your  Voice Gateway Internet connection. For help 
installing your gateway, see the  Wireless Cable Voice Gateway CG3000/3100 Quick Install 
Guide .For information about product features an d compatible NETGEAR products, see the 
NETGEAR website at  http://www.netgear.com .
Package Contents
The product package should contain  the following items:
• NETGEAR® Wireless Cable Voice Gateway 
• W
ireless Cable Voice Gateway CG 3000/3100 Quick Install Guide
• AC power adapter with separate battery
• Category 5 (CAT5) Ethernet cable
• USB cable
• Resour
ce CD , including:
– This manual
– Application Notes, Tools, and other helpful information
If any of the parts are incorrect, missing, or damaged, contact your NETGEAR dealer. Keep the 
carton, including t
 he original packing materials, in  case you need to return the product for repair.
Gateway Front Panel
The front panel of the gateway contains status LEDs.
Figure 1-1
  
						

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You can use the LEDs to verify status and connections. The following table lists and describes 
each LED and button on the front panel of the gateway. 
Ta b l e  1-1. LED and Front Panel Button Descriptions   
LEDDescription
Power•
So
lid green. Power is supplied to the cable modem.
•Off . No 
power.
 Downstream •
So
lid green. The unit is synchronized, and all four channels are in use (channel 
bonding). 
• Blinking . T
 he unit is scanning for a downstream DOCSIS channel.
• Off . 
No downstream channels are locked. 
Upstream •
So
lid green. The unit is synchronized, and all four channels are in use (channel 
bonding).
• Blinking . T
 he unit is scanning for an upstream channel.
• Off . 
No upstream channels are locked.
Internet •
So
lid green. The cable modem is online.
•Blinking . T
 he cable modem is synchronizing with the cable provider’s CMTS.
• Off . 
The cable modem is offline.
LAN (
Ethernet) • Green indicates 1,000 Mbps. Amber indicates 10/100 Mbps.
•
So
lid . An Ethernet device is connected and powered on.
• Blinking . Da
 ta is being transmitted or received on the Ethernet port.
• Off . 
No Ethernet device is det ected on the Ethernet port.
Vo i c e  P o r ts 
(1 and 2)
• Solid green. Registered with the Call Agent.
• Blinking . T
 here is an active call.
• Sl
ow blink. Phone is “on-hook,” registration with Call Agent is in progress.
•Off . No phones are connected to the voice port.
ButtonDescription
Wireless
On/Off Turn the wireless radio in the gateway on and off. The wireless radio is on by default. The 
LED 

located below this button indicates if the wireless radio is on or off.
Push N 
Connect (WPS) Pushing this button opens a 2-minute window for the gateway to connect with other WPS-
ena

bled devices. For more information, about using the WPS method to implement secu -
rity, see the Wireless Cable Voice Gateway CG3000/CG3100 User Manual 
						

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Gateway Rear Panel
The rear panel includes the followi ng connections, viewed from left to right, as illustrated in the 
following illustration:
Power
Ethernet  Coaxial
Voice/phone USB
portsLAN ports
adapter
input
cable
connector Power On/Off
port button
Figure 
1-2
•Two Voice/Phone ports : With VoIP service, connect on e or two handsets to these ports.
• Four Ethern
 et LAN ports: Use these ports to connect local computers.
• USB port:  The USB p
 ort is a USB host and can be  used for connecting a USB hard drive, 
flash drive, or printer. 
• C
oaxial cable connector:  Attach coaxial cable to the cable service provider’s connection.
• Power:  AC powe
 r adapter input.
Note: You can return the gateway to its factor y settings. On the bottom of the gateway, 
press and hold the Restor e Factory Settings button 
 for over 7 seconds. The 
gateway resets, and returns to its factory settings. See  “Factory Default Settings” in 
Appendix  A.
Logging In to Your Gateway
You can log in to the gateway to view or ch ange its settings. Links to Knowledge Base and 
documentation are also available on the gateway main menu.
Note:  Your computer must be configured for DHCP. For help with configuring DHCP, see 
the documentation that came with your  computer or see the link to the online 
document in  “Preparing a Computer for Network Access” in Appendix  B .
  
						

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When you have logged in, if you do not click Logout, the gateway waits for 5 minutes after no 
activity before it automatically logs you out.
To log in to the gateway:
1. Using the compute
 r that you first used to acces s 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 displays:
http://192.168.0.1
Figure  1-3
2.Enter admin  for the user name and  password for the password, both in lower case letters.
When you connect to the gateway th e Modem S
 tatus screen displays:
Figure 1-4 
						

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Viewing the Basic Settings
To view or configure the basic settings,  select Basic Settings from the main menu:
Figure 1-5
By default Dynamic IP is selected.  If you make changes, you must click  Apply to accept the new 
settings. 
						

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MTA Status
From the main menu select MTA Status to display the following screen:
Figure 1-6 
						

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Chapter 2 
Wireless Configuration
For a wireless connection, the SSID, also called the wireless network name, and the wireless 
security setting must be the same for 
the gateway and wireless computers or wireless adapters. 
NETGEAR strongly recommends that you use wireless security. This chapter includes:
•“Planning Your Wireless Network”
•“Manually Configuring Your Wireless Settings and Security” on page 2-3
•“Using Push N Connect (WPS) to Configure Your Wireless Network and Security” on 
page 2-9
•“Connecting Additional Wireless Client Devices” on page 2-13
Planning Your Wireless Network
For compliance and compatibility between similar products in your area, the operating channel 
and region must be set correctly. 
To configure the wireless network, you can either specify the wireless settings, or you can use Wi-
Fi Protected Setup (WPS) to automatically set the SSID and implement WPA/WPA2 security.
• To manually configure the wireless settings, you must know the following:
– SSID. The default SSID for the gateway is Wireless. 
– The wireless mode (802.11g, or 802.11b) that each wireless adapter supports.
– Wireless security option. To successfully implement wireless security, check each wireless 
adapter to determine which wireless security option it supports. 
See “Manually Configuring Your Wireless Settings and Security” on page 2-3.
• Push N Connect (WPS) automatically implements wireless security on the gateway while, at 
the same time, allowing you to automatically implement wireless security on any WPS-
enabled devices (such as wireless computers and wireless adapter cards). You activate WPS by 
pressing a WPS button on the gateway, clicking an onscreen WPS button, or entering a PIN 
number. This generates a new SSID and implements WPA/WPA2 security. 
						

							Note: NETGEAR’s Push N Connect feature is based on the Wi-Fi Protected Setup 
(WPS) standard (for mo re information, see http://www.wi-fi.org). All other Wi-
Fi-certified and WPS-capable products s hould 
 be compatible with NETGEAR 
products that implement Push N Connect.
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To set up your wireless network using the WPS feature:
– Use the WPS button on the side of the gateway (there
  is also an onscreen WPS button), or 
enter the PIN of the wireless device. 
– Make sure that all wireless computers  and 
 wireless adapters on the network are Wi-Fi 
certified and WPA or WPA 2 capable, an d that they support WPS configuration.
See “Using Push N Connect (WPS) to Configur e Y our Wireless Network and Security” on 
page  2-9 .
Wireless Placement and Range Guidelines
The range of your wireless connection can vary si gnificantly based on the physical placement of 
the gateway. The latency, data throughput pe rformance, and notebook power consumption of 
wireless adapters also vary depend ing on your configuration choices.
For best results, place your gateway  according to the 
 following guidelines:
• Near the center of the area in  whi
 ch your PCs will operate.
• In an elevated location such as a high shelf where the wirelessly connected PCs have line-of- sight acc
 ess (even if through walls).
• Away from sources of interference, such as  PC
 s, 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 chan nels (for example, use Channels 1 and 6, or 6 and 11).
The time it takes to establish a wireless connec tion 
 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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Wireless Security Options
Indoors, computers can connect over 802.11n wireless networks at a maximum range of up to 300 
feet. Such distances can allow for others outside your immediate area to access your network.
Unlike wired network data, your wireless data  transmissions ca
 n extend beyond your walls and 
can be received by anyone with a compatible adapte r. For this reason, use the security features of 
your wireless equipment. The Voice Gateway provides highly effective security features which are 
covered in detail in this chapter. Deploy th e security features appropriate to your needs.
There are several ways you can enhance  the sec
 urity of your wireless network:
• WEP
.  Wired Equivalent Privacy (WEP) data encr yption provides data security. WEP Shared 
Key authentication and WEP data encryption bloc k all but the most determined eavesdropper. 
This data encryption mode has been  superseded by WPA-PSK and WPA2-PSK.
• WP
A-PSK (TKIP), WPA2-PSK (AES) . Wi-Fi Protected Access (WPA) using a pre-shared 
key to perform authentication a nd generate the initial data encryption keys. The very strong 
authentication along with dyna mic per frame re-keying of WP A makes it virtually impossible 
to compromise. 
• Restrict access to your router.
For more information about wireless technology
 , see the link to the online document in “Wireless 
Networking Basics” in Appendix  B.
Manually Configuring Your Wi reless Settings and Security
You can view or manually configure the wireless  settings for the gateway in the Wireless Settings 
screen. If you want to make changes, make  sure to note the current settings first. 
Note: If you use a wireless computer to change  the wireless network name (SSID) or 
wireless security settings, you will be disconnected  when you click Apply. To 
avoid this problem, use a computer with a wired connection to access the gateway.
To view or manually conf igure the wireless 
 settings:
1. Log in to the gate
 way as described in “Logging In to Your Gateway” on page  1-4 .  
						

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2.In the main menu, under Setup, select Wirel ess Settings to display the following screen:
Figure 2-1
3.If you make changes, you must click  Apply for them to take effect.