Related Manuals for NETGEAR CG3100Dv3
Summary of Contents for NETGEAR CG3100Dv3
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Page 1: User Manual
Wireless Cable Gateway CG3100Dv3 User Manual 350 East Plumeria Drive San Jose, CA 95134 October 2011 202-10942-01 v1.0... -
Page 2: Technical Support
NETGEAR, Inc. Technical Support Thank you for choosing NETGEAR. To register your product, get the latest product updates, get support online, or for more information about the topics covered in this manual, visit the Support website at http://support.netgear.com. -
Page 3: Table Of Contents
Table of Contents Chapter 1 Connecting to the Internet Gateway Front Panel ......... . 6 Gateway Rear Panel . - Page 4 NETGEAR Wireless Cable Gateway CG3100Dv3 Considerations for Port Forwarding ......34 Port Triggering ..........35 DMZ Host .
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Page 5: Chapter 1 Connecting To The Internet
Connecting to the Internet For help installing the gateway, see the Wireless Cable Gateway CG3100Dv3 Quick Install Guide. This chapter describes how to configure your gateway’s Internet connection and includes these sections: • Gateway Front Panel on page 6. •... -
Page 6: Gateway Front Panel
NETGEAR Wireless Cable Gateway CG3100Dv3 Gateway Front Panel Wireless On/Off Power Downstream Upstream Internet LAN (Ethernet) Figure 1. Gateway front view Note: For optimal performance, place the gateway vertically in the stand. Do not mount this unit to a wall; it is not suitable for wall mounting. - Page 7 NETGEAR Wireless Cable Gateway CG3100Dv3 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. Description • Green: Power is supplied to the cable modem.
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Page 8: Gateway Rear Panel
NETGEAR Wireless Cable Gateway CG3100Dv3 Gateway Rear Panel Ethernet LAN ports Restore Factory Settings button Coaxial cable connector Power adapter input Power On/Off button Figure 2. Gateway rear panel The rear panel includes the following connections, viewed from left to right: •... -
Page 9: Logging Into Your Gateway
NETGEAR Wireless Cable Gateway CG3100Dv3 • Power On/Off button. Note: You can return the gateway to its factory settings. On the back panel of the gateway, press and hold the Restore Factory Settings button for over 7 seconds. The gateway resets, and returns to its factory settings. -
Page 10: Viewing The Basic Settings
NETGEAR Wireless Cable Gateway CG3100Dv3 To view the gateway’s settings for the Internet connection, see the following section, Viewing the Basic Settings on page 10. Viewing the Basic Settings The Basic Settings screen shows the Internet settings for the gateway. - Page 11 Primary DNS. A DNS server is a host on the Internet that translates Internet names (such as www.netgear.com) to numeric IP addresses. Typically 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.
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Page 12: Chapter 2 Wireless Configuration
• The default wireless network name (SSID) for the gateway is Wireless. NETGEAR recommends that you change this for better wireless security and to make it easier to recognize your network when you want to connect to it wirelessly. -
Page 13: Manually Configuring Wireless Settings
NETGEAR Wireless Cable Gateway CG3100Dv3 Manually Configuring Wireless Settings You can manually configure the wireless settings and security for your gateway from the Wireless Settings screen. To view or configure the wireless settings: If you are located near the gateway, use an Ethernet cable to connect your computer to the gateway while you are changing the wireless settings. -
Page 14: Wep Security
NETGEAR Wireless Cable Gateway CG3100Dv3 To set up WPA or WPA2 wireless security: In the Security Options section of the Wireless Settings screen, leave the default setting or select one of the WPA settings: • WPA-PSK. This setting provides the TKIP encryption type and a pre-shared key passphrase. -
Page 15: Using Push 'N' Connect (Wps) Wireless Setup
NETGEAR Wireless Cable Gateway CG3100Dv3 To set up WEP wireless security: In the Wireless Settings screen, select the WEP radio button in the Security Options section. Select the Authentication from the drop-down list.The default is Automatic. Depending on the encryption strength that you... -
Page 16: Using The Wps Button
NETGEAR Wireless Cable Gateway CG3100Dv3 Note: All WPS-capable products should be compatible with the gateway. For more detailed information about the WPS standard, see http://www.wi-fi.org). There are two Push 'N' Connect methods, Push Button and PIN (personal identification number). •... -
Page 17: Using A Pin
NETGEAR Wireless Cable Gateway CG3100Dv3 Either click the WPS button, or press the button on the front of the gateway. • The WPS LED on the front of the gateway begins to blink. • The gateway tries to communicate with the wireless computer or device for 2 minutes. -
Page 18: Wi-Fi Multimedia
NETGEAR Wireless Cable Gateway CG3100Dv3 • The gateway tries to communicate with the wireless computer or device for 4 minutes. • If the Security Option in the Wireless Settings screen was set to Disabled, it is automatically changed to WPA-PSK (including a PSK security password). -
Page 19: Advanced Wireless Settings
NETGEAR Wireless Cable Gateway CG3100Dv3 Advanced Wireless Settings You can use the Advanced Wireless Settings screen to configure the wireless radio settings, and other advanced settings: The following table describes the fields in the Advanced Wireless Settings screen. Advanced Wireless Settings... -
Page 20: Start Configure Button
NETGEAR Wireless Cable Gateway CG3100Dv3 Start Configure Button This button can be used to start WPS configuration. Note: The first time you use WPS it will assign a random network name (SSID) and a random passphrase to your wireless network. If you... - Page 21 NETGEAR Wireless Cable Gateway CG3100Dv3 In the main menu, under Advanced, select Wireless Settings. Click the Setup Access List button to display the Wireless Card Access List screen. Note: If you are configuring the gateway from a wireless computer, make sure to add your computer’s MAC address to the Access List.
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Page 22: Chapter 3 Content Filtering
Content Filtering This chapter describes how to use content filtering s for the gateway. This chapter includes: • Viewing or Emailing Logs • Blocking Keywords, Sites, and Services on page 22. • Services on page 23. Viewing or Emailing Logs Your gateway logs security-related events such as Denial of Service (DoS) attacks, hacker probes, and administrator logins, based on the settings on the Logs screen. -
Page 23: Blocking Keywords And Domains
The 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 website. For example, for the address www.NETGEAR.com, the domain name is NETGEAR.com. - Page 24 NETGEAR Wireless Cable Gateway CG3100Dv3 To add a service: Log in to the gateway as described in Logging Into Your Gateway on page 9. In the main menu, under Content Filtering, select Services. To disable a feature, clear its check box.
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Page 25: Chapter 4 Managing Your Network
Managing Your Network This chapter describes how to perform network management tasks with your gateway. When you log in to the gateway (see Logging Into Your Gateway on page 9), these tasks are grouped under Maintenance. This chapter includes: • Viewing the Gateway Status •... - Page 26 NETGEAR Wireless Cable Gateway CG3100Dv3 The following table describes the fields displayed in this screen Modem Status Field Description Standard Specification DOCSIS 3.0 Compliant Hardware Version The hardware version of the gateway. Software Version The version of firmware currently running on the gateway.
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Page 27: Viewing The Connection Status
Connect to the Internet. Changing Passwords For security reasons, the gateway has its own user names and passwords. NETGEAR recommends that you change the default passwords to more secure passwords. The ideal passwords should contain no dictionary words from any language, and should be a mixture of... -
Page 28: Backing Up And Restoring Your Settings
NETGEAR Wireless Cable Gateway CG3100Dv3 both upper and lower case letters, numbers, and symbols. Your passwords can be up to 30 characters. To change the password: In the main menu, under Maintenance, select Set Password. To change the password, enter the new password twice. -
Page 29: Viewing The Event Log
NETGEAR Wireless Cable Gateway CG3100Dv3 • To restore the saved configuration settings from a backup file, click Browse, locate and select the previously saved backup file. Then click Restore. A message notifies you when the gateway has been restored to previous settings. Then, the gateway restarts, which takes about one minute. - Page 30 NETGEAR Wireless Cable Gateway CG3100Dv3 To use diagnostics: Log in to the gateway as described in Logging Into Your Gateway on page 9. In the main menu, under Maintenance, select Diagnostics. To start a ping test, enter the IP address in the Diagnostics screen, and click the Ping button.
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Page 31: Chapter 5 Advanced Settings
Advanced Settings This chapter describes how to customize your network through the advanced settings on your gateway. When you log in to the gateway (see Logging Into Your Gateway on page 9), these tasks are grouped under Advanced. This chapter includes: •... -
Page 32: Port Blocking
NETGEAR Wireless Cable Gateway CG3100Dv3 To use MAC filtering to block Internet access for a specific computer: In the main menu, under Advanced, select MAC Filtering. The Trusted Devices table shows computers that have access to the Internet through the gateway. Click Refresh to update the Trusted Devices table. -
Page 33: Port Forwarding
NETGEAR Wireless Cable Gateway CG3100Dv3 Note: Any outbound traffic that is not blocked by rules that you have created is allowed by the default rule. To configure port blocking and services to block specific outbound traffic: In the main menu, under Advanced, select Port Blocking. -
Page 34: Considerations For Port Forwarding
NETGEAR Wireless Cable Gateway CG3100Dv3 a web server or game server) or computer visible and available to the Internet. The rule tells the Gateway to direct inbound traffic for a particular service to one local server or computer based on the destination port number. This is also known as port forwarding. -
Page 35: Port Triggering
NETGEAR Wireless Cable Gateway CG3100Dv3 • Local PCs must access the local server using the PCs’ local LAN address (192.168.1.XXX, by default). Attempts by local PCs to access the server using the external WAN IP address will fail. • Port forwarding opens holes in your firewall. Only enable ports that are necessary. -
Page 36: Dmz Host
NETGEAR Wireless Cable Gateway CG3100Dv3 To configure port triggering: In the main menu, under Advanced, select Port Triggering. For each port trigger, enter the settings in the Port Trigger List: • Trigger Range. To specify the range of outgoing ports that will be monitored to trigger the incoming port forwarding rule, enter the Start Port and End Port. -
Page 37: Lan Ip Setup
NETGEAR Wireless Cable Gateway CG3100Dv3 To set up a DMZ host: In the main menu, under Advanced, select DMZ Host. If desired, select the Respond to Ping on WAN Port checkbox. Type the last digit(s) of the IP address in the DMZ Address field. -
Page 38: Reserving An Ip Address For Dhcp Use
NETGEAR Wireless Cable Gateway CG3100Dv3 To configure LAN IP settings: In the main menu, under Advanced, select LAN IP. Specify these settings: • LAN IP Address: The factory default setting is 192.168.1.1. • Subnet Mask: The network number portion of an IP address. Unless you are implementing subnetting, use 255.255.255.0 as the subnet mask. -
Page 39: Remote Management
NETGEAR Wireless Cable Gateway CG3100Dv3 To delete an IP address from the DHCP Client Lease Info table: In the DHCP Client Lease Info table, click the radio button for the MAC and IP address that you want to remove. Click Delete to remove the information for the selected MAC and IP address from the DHCP Client Lease Info table. - Page 40 Port Number fields Web browser access normally uses the standard HTTP service port 80. NETGEAR recommends that you use a different port number for remote management, as using port 80 will prevent the use of a Web Server on your LAN, and can be more readily discovered by hackers.
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Page 41: Configuring Universal Plug And Play (Upnp)
NETGEAR Wireless Cable Gateway CG3100Dv3 Remote Management Description (Continued) Settings (Continued) IP Address to connect this device Allow Management via Telnet You can select LAN interface (local management), CM Interface (remote Allow Management via SSH management), or WAN Interface (remote management) in order to connect to the gateway from the Internet. - Page 42 NETGEAR Wireless Cable Gateway CG3100Dv3 Fill in the Advertisement Period and Advertisement Time to Live fields. The UPnP Portmap Table displays the IP address of each UPnP device that is currently accessing the gateway and which internal and external ports of the gateway were opened by that device.
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Page 43: Chapter 6 Troubleshooting
Troubleshooting This chapter gives information about troubleshooting your NETGEAR Wireless Cable Gateway CG3100Dv3. For the common problems listed, go to the section indicated. • Have I connected the gateway correctly? Go to Basic Functions on page 43. • I cannot access the gateway configuration with my browser. -
Page 44: Using Leds To Troubleshoot
NETGEAR Wireless Cable Gateway CG3100Dv3 Using LEDs to Troubleshoot The following table provides help when using the LEDs for troubleshooting. 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. -
Page 45: Troubleshooting The Isp Connection
NETGEAR Wireless Cable Gateway CG3100Dv3 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. -
Page 46: Testing The Lan Path To Your Gateway
NETGEAR Wireless Cable Gateway CG3100Dv3 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: From the Windows toolbar, click on the Start button and select Run. -
Page 47: Wireless Performance And Gateway Location
• To reduce interference when using more than one access point, NETGEAR recommends using 5 channel spacing between adjacent access points (for example, use Channels 1 and 6, or 6 and 11). -
Page 48: Factory Default Settings
Default Settings and Technical Specifications This chapter includes: • Factory Default Settings • Technical Specifications on page 49 Factory Default Settings You can return the gateway to its factory settings. On the back panel of the gateway, press and hold the Restore Factory Settings button for over 7 seconds. -
Page 49: Technical Specifications
NETGEAR Wireless Cable Gateway CG3100Dv3 Factory Default Settings (Continued) Wireless Wireless communication Enabled SSID name As shown on the product label. Security WPA/WPA2 The default WPA/WPA2 passphrase is as shown on the product label. Broadcast SSID Enabled Transmission speed Auto... - Page 50 NETGEAR Wireless Cable Gateway CG3100Dv3 Technical Specifications (Continued) Interface Local: 10BASE-T, 100/1000BASE-Tx, RJ-45 802.11n/g/b Internet: DOCSIS 3.0. Downward compatible with DOCSIS 2.0, 1.1 and 1.0 Default Settings and Technical Specifications...
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Page 51: Appendix B Notification Of Compliance
Eesti [Estonian] Käesolevaga kinnitab NETGEAR Inc. seadme Radiolan vastavust direktiivi 1999/5/EÜ põhinõuetele ja nimetatud direktiivist tulenevatele teistele asjakohastele sätetele. English Hereby, NETGEAR Inc., declares that this Radiolan is in compliance with the essential requirements and other relevant provisions of Directive 1999/5/EC. - Page 52 NETGEAR Wireless Cable Gateway CG3100Dv3 Español Por medio de la presente NETGEAR Inc. declara que el Radiolan cumple con los [Spanish] requisitos esenciales y cualesquiera otras disposiciones aplicables o exigibles de la Directiva 1999/5/CE. Ελληνική ΜΕ ΤΗΝ ΠΑΡΟΥΣΑ NETGEAR Inc. ΔΗΛΩΝΕΙ ΟΤΙ Radiolan ΣΥΜΜΟΡΦΩΝΕΤΑΙ ΠΡΟΣ...
- Page 53 This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. FCC Declaration of Conformity We, NETGEAR, Inc., 350 East Plumeria Drive, San Jose, CA 95134, declare under our sole responsibility that the NETGEAR Wireless Cable Gateway CG3100Dv3 complies with Part 15 Subpart B of FCC CFR47 Rules. Operation is subject to the following two conditions: •...
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Page 54: Industry Canada
Canadian Department of Communications Radio Interference Regulations This digital apparatus (NETGEAR Wireless Cable Gateway CG3100Dv3) does not exceed the Class B limits for radio-noise emissions from digital apparatus as set out in the Radio Interference Regulations of the Canadian Department of Communications. - Page 55 NETGEAR Wireless Cable Gateway CG3100Dv3 Interference Reduction Table The table below shows the Recommended Minimum Distance between NETGEAR equipment and household appliances to reduce interference (in feet and meters). Household Appliance Recommended Minimum Distance (in feet and meters) Microwave ovens...
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Page 56: Index
Index Numerics gateway backup 192.168.1.1, default IP address main menu placement and range guidelines remote management gateway front panel backing up the configuration file gateway rear panel Basic Settings blocking keywords PCs based on MAC address IP address sites IP addresses, auto-generated blocking ports cable channel IP address... - Page 57 NETGEAR Wireless Cable Gateway CG3100Dv3 Services (firewall) static IP address TCP/IP network, troubleshooting technical specifications technical support trademarks troubleshooting ISP connection LEDs ping utility TCP/IP network Universal Plug and Play (UPnP) keys passphrase Wi-Fi Protected Setup (WPS) Push ’N’ Connect...