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v1.0, August 2009

Chapter 1

Connecting the Gateway to the Internet

This chapter describes how to set up the gateway on your Local Area Network (LAN), connect to
the Internet, and perform basic configuration. For help with installation, see the

Quick Installation

Guide

that shipped with your product

Package Contents

The product package contains the following items:
•

DOCSIS 2.0 Advanced Cable Gateway CGD24N v2

•

AC power adapter

•

Category 5 (CAT5) Ethernet cable

•

Two brackets

•

Quick Installation Guide

•

Resource CD

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.

Gateway Front Panel

The front panel of the gateway contains status LEDs.

Figure 1-1

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Содержание CGD24N

Страница 1: ...202 10509 01 August 2009 v1 0 NETGEAR Inc 350 East Plumeria Drive San Jose CA 95134 USA DOCSIS 2 0 Advanced Cable Gateway CGD24N v2 User Manual...

Страница 2: ...ut 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...

Страница 3: ...yr Radiolan overholder de v sentlige krav og vrige relevante krav i direktiv 1999 5 EF Deutsch German Hiermit erkl rt NETGEAR Inc dass sich das Ger t Radiolan in bereinstimmung mit den grundlegenden A...

Страница 4: ...n Alul rott NETGEAR Inc nyilatkozom hogy a Radiolan megfelel a vonatkoz alapvet k vetelm nyeknek s az 1999 5 EC ir nyelv egy b el r sainak Polski Polish Niniejszym NETGEAR Inc o wiadcza e Radiolan jes...

Страница 5: ...stallation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the i...

Страница 6: ...Model Number CGD24N v2 Publication Date August 2009 Product Family Gateway Product Name DOCSIS 2 0 Advanced Cable Gateway CGD24N v2 Home or Business Product Business Language English Publication Part...

Страница 7: ...ter 2 Wireless Configuration Planning Your Wireless Network 2 1 Wireless Placement and Range Guidelines 2 2 Wireless Security Options 2 3 Manually Configuring Your Wireless Settings and Security 2 3 C...

Страница 8: ...4 6 Running Diagnostic Utilities 4 7 Chapter 5 Customizing Your Network Advanced Wireless Settings 5 2 Turning on Access Control to Restrict Access by MAC Address 5 3 Restricting Access by MAC Addres...

Страница 9: ...on 6 4 Troubleshooting a TCP IP Network Using a Ping Utility 6 4 Testing the LAN Path to Your Gateway 6 4 Testing the Path from Your PC to a Remote Device 6 5 Appendix A Technical Specifications and F...

Страница 10: ...DOCSIS 2 0 Advanced Cable Gateway CGD24N v2 User Manual x Contents v1 0 August 2009...

Страница 11: ...in the following paragraphs Typographical Conventions This manual uses the following typographical conventions Formats This manual uses the following formats to highlight special messages Italic Emph...

Страница 12: ...ternet firewall and VPN technologies see the links to the NETGEAR website in Appendix B Related Documents Revision History Product Version DOCSIS 2 0 Advanced Cable Gateway CGD24N v2 Manual Publicatio...

Страница 13: ...product Package Contents The product package contains the following items DOCSIS 2 0 Advanced Cable Gateway CGD24N v2 AC power adapter Category 5 CAT5 Ethernet cable Two brackets Quick Installation G...

Страница 14: ...ble interface is idle 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 Wireless On The...

Страница 15: ...ing Push N Connect WPS to Configure Your Wireless Network and Security on page 2 8 Side Panel On the side panel is the Push N Connect WPS button Push N Connect WPS automatically implements wireless se...

Страница 16: ...with DHCP enabled An active account with your Internet Service Provider ISP for data services Depending on how your ISP set up the Internet account you need one or more of these configuration setting...

Страница 17: ...eway log in with the user name superuser and its default password of password both with lower case letters To access all features of the gateway except content filtering and MAC filtering log in with...

Страница 18: ...Cable Network Settings are correct based on the information from your Internet Service Provider ISP By default the Dynamic IP radio button is selected which enables the gateway to automatically downlo...

Страница 19: ...onnect 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 s...

Страница 20: ...DOCSIS 2 0 Advanced Cable Gateway CGD24N v2 User Manual 1 8 Connecting the Gateway to the Internet v1 0 August 2009...

Страница 21: ...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 mus...

Страница 22: ...levated 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 cordl...

Страница 23: ...ty WEP Shared Key authentication and WEP data encryption block all but the most determined eavesdropper This data encryption mode has been superseded by WPA PSK and WPA2 PSK WPA PSK TKIP WPA2 PSK AES...

Страница 24: ...n v1 0 August 2009 To view or manually configure the wireless settings 1 Log in to the gateway as described in Logging in to the Gateway on page 1 5 2 In the main menu under Setup select Wireless Sett...

Страница 25: ...40 MHz Security Options You can manually configure wireless security here Disable Wireless security is disabled by default After the gateway is connected to the Internet NETGEAR strongly recommends t...

Страница 26: ...se options WEP Wired Equivalent Privacy 128 bit encryption WEP Wired Equivalent Privacy 64 bit encryption 5 Enter the WEP encryption key information WEP PassPhrase To use a passphrase to automatically...

Страница 27: ...e gateway 1 Log in to the gateway as described in Logging in to the Gateway on page 1 5 2 In the main menu under Setup select Wireless Settings 3 Select a WPA setting WPA PSK TKIP TKIP encryption type...

Страница 28: ...y to save your settings Using Push N Connect WPS to Configure Your Wireless Network and Security If your wireless clients support Wi Fi Protected Setup WPS you can use this feature to configure the ga...

Страница 29: ...t using the PIN method see Using a PIN Entry to Add a WPS Client on page 2 11 Using a WPS Button to Add a WPS Client Any wireless computer or wireless adapter that will connect to the gateway wireless...

Страница 30: ...n is detected and no SSID or security settings are configured on the gateway Note the new SSID and WPA WPA2 password for the wireless network You can view these settings in the Wireless Settings scree...

Страница 31: ...es While the gateway attempts to establish a connection you can stop this process by clicking Cancel 6 Go back to the gateway screen and check the WPS status Success A connection is established The ga...

Страница 32: ...the Restore Factory Settings button on the rear panel of the gateway for 5 seconds When the factory settings are restored all existing wireless clients are disassociated and disconnected from the gat...

Страница 33: ...thorization of each individual guest You can configure up to three wireless guest networks and specify the security options for each wireless guest network Configuring a Wireless Guest Network To conf...

Страница 34: ...not the same as Guestnetwork 5 At the bottom of the screen click Apply to enable the selected guest network 6 Configure wireless security for the guest network This process that is very similar to con...

Страница 35: ...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 To receive logs by e mail 1 In the main menu unde...

Страница 36: ...t based content and communications services With its content filtering feature the gateway prevents objectionable content from reaching your PCs The gateway allows you to control access to Internet co...

Страница 37: ...tes with other domain suffixes such as edu org or gov can be viewed Enter the keyword to block all Internet browsing access To remove a keyword from the Keyword List select the keyword and then click...

Страница 38: ...d web features 1 In the main menu under Content Filtering select Services The Services screen displays 2 To enable a service select its check box To disable a service clear its check box The following...

Страница 39: ...casting streams through the firewall Web Features Filter Proxy When enabled these features are not blocked by the firewall When disabled these features are blocked by the firewall You can enable or di...

Страница 40: ...DOCSIS 2 0 Advanced Cable Gateway CGD24N v2 User Manual 3 6 Content Filtering v1 0 August 2009...

Страница 41: ...toring Your Settings on page 4 5 Viewing the Event Log on page 4 6 Running Diagnostic Utilities on page 4 7 Log in to the gateway using its default address of http 192 168 0 1 or at whatever IP addres...

Страница 42: ...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 a...

Страница 43: ...ream cable channel After the cable modem is initialized you can see the current time Status System Up Time This is the time since the gateway has registered with your cable service provider Network Ac...

Страница 44: ...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...

Страница 45: ...ings The configuration settings of the gateway are stored in a configuration file in the gateway To see the backup settings 1 Log in to the gateway as described in Logging in to the Gateway on page 1...

Страница 46: ...es you when the gateway has been restored to previous settings Then the gateway restarts which takes about one minute Viewing the Event Log The gateway logs security related events such as denied inco...

Страница 47: ...nostics The Diagnostics screen displays 3 Under Ping Test Parameters enter the following settings Ping Target Enter the IP address of the computer that you would like to ping Ping Size Enter the size...

Страница 48: ...DOCSIS 2 0 Advanced Cable Gateway CGD24N v2 User Manual 4 8 Managing Your Network v1 0 August 2009...

Страница 49: ...ort Forwarding on page 5 9 Configuring Port Triggering on page 5 11 Setting Up a DMZ Host on page 5 13 Using LAN IP Setup Options on page 5 14 Enabling Remote Management on page 5 17 Configuring Unive...

Страница 50: ...u can turn off the wireless radio to disable access through this device This can be helpful for configuration network tuning or troubleshooting activities Enable Broadcast Name SSID On by default the...

Страница 51: ...C addresses 1 Log in to the gateway as described in Logging in to the Gateway on page 1 5 Advanced Configuration Fragmentation Threshold CTS RTS Threshold Preamble Mode The default settings for these...

Страница 52: ...needed for your network You can add a devices to the access list using either one of the following methods If the computer is in the Connected Wireless Devices table click the radio button of that com...

Страница 53: ...ly to save these settings Now only devices in the Access List table will be allowed to wirelessly connect to the gateway Restricting Access by MAC Address By default the gateway allows any connected P...

Страница 54: ...s Enable check box Doing so leaves the PC in the MAC Filter List but ensures that the PC is not blocked To remove a PC from the MAC Filter List select the PC from the drop down list and then click Del...

Страница 55: ...n displays 3 Under Add Predefined Service select a predefined service from the Services pull down menu For example FTP which uses TCP ports 20 and 21 4 As an option you can also specify a custom rule...

Страница 56: ...custom rules to specify exceptions to the default rule Because the gateway uses Network Address Translation NAT your network presents only one IP address to the Internet and outside users cannot direc...

Страница 57: ...own menu For example FTP which uses TCP ports 20 and 21 4 As an option you can also specify a custom rule that is not in the list of predefined services by specifying the following settings in the Add...

Страница 58: ...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...

Страница 59: ...ber 4 The gateway matches the response to the previous request and forwards the response to the PC Without port triggering this response would be treated as a new connection request rather than a resp...

Страница 60: ...r the start port for the target range Protocol Select the protocol for the ports TCP Select TCP only UDP Select UDP only Both Select both TCP and UDP Click the Enable check box to activate the port tr...

Страница 61: ...ne on the Internet for services that you have not defined Because of security concerns only do this if you are willing to risk open access If you do not assign a DMZ address the gateway discards any u...

Страница 62: ...ting use 255 255 255 0 as the subnet mask DHCP Server The gateway is set up by default as a Dynamic Host Configuration Protocol DHCP server which provides the TCP IP configuration for all the computer...

Страница 63: ...explanation of DHCP and information about how to assign IP addresses for your network Specify the pool of IP addresses to be assigned by setting the starting IP address and ending IP address These add...

Страница 64: ...manent IP address for the PC 3 Click Add to save your settings The MAC address and IP address are displayed in the DHCP Client Lease Info table The current system time is also displayed To delete an I...

Страница 65: ...agement interface The default port number is 80 5 Click Apply to save your changes Figure 5 9 Note Be sure to change the gateway s remote management password to a very secure password before enabling...

Страница 66: ...to automatically control of its the resources such as port forwarding 4 Enter the following information Advertisement Period Enter how often the gateway broadcasts its UPnP information The default is...

Страница 67: ...nd external ports of the gateway were opened by that device The UPnP Portmap Table also displays the protocol for the port that was opened and if that port is still active for each IP address 5 Perfor...

Страница 68: ...DOCSIS 2 0 Advanced Cable Gateway CGD24N v2 User Manual 5 20 Customizing Your Network v1 0 August 2009...

Страница 69: ...ember the gateway s configuration password or I want to clear the configuration and start over again Go to Backing Up and Restoring Your Settings on page 4 5 Basic Functions After you have turned on p...

Страница 70: ...ve 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...

Страница 71: ...page 5 17 Make sure your browser has Java JavaScript or ActiveX enabled If you are using Internet Explorer click Refresh to make sure that the Java applet is loaded Try quitting the browser and launch...

Страница 72: ...inal 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 b...

Страница 73: ...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...

Страница 74: ...DOCSIS 2 0 Advanced Cable Gateway CGD24N v2 User Manual 6 6 Troubleshooting v1 0 August 2009...

Страница 75: ...erver and client DNS relay NAT many to one TFTP client VPN pass through IPSec PPTP Power Adapter North America input 120V 60 Hz input All regions output 12 V DC 1A output 15W maximum Physical Specific...

Страница 76: ...will reboot and return to the settings shown in the following table Wireless Radio Data Rates 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 Ra...

Страница 77: ...68 1 2 DHCP Ending IP Address 192 168 1 254 DMZ Enabled or disabled Time zone GMT Time Zone Adjusted for Daylight Saving Time Disabled SNMP Disabled Firewall Inbound communications coming in from the...

Страница 78: ...by region RF Channel 6 until the region is selected Operating Mode g and b until the region is selected Data Rate Best Output Power Full Access Point Enabled Authentication Type Open System Wireless C...

Страница 79: ...ctions http documentation netgear com reference enu winzerocfg index htm ITCP IP Networking Basics http documentation netgear com reference enu tcpip index htm Wireless Networking Basics http document...

Страница 80: ...DOCSIS 2 0 Advanced Cable Gateway CGD24N v2 User Manual B 6 Related Documents v1 0 August 2009...

Страница 81: ...ings 1 7 Denial of Service DoS 3 1 DHCP 1 6 reserved IP address 5 17 server 5 15 5 16 diagnostics 4 7 DMZ host 5 13 DNS primary and secondary server 1 7 Downstream Traffic LED 1 2 E e mailing logs 3 1...

Страница 82: ...ettings button 1 3 A 2 restrict wireless access by MAC address access control 2 15 router log 3 1 rules outbound 3 4 S secondary DNS server 1 7 security options wireless 2 5 SSID 2 5 static IP address...

Страница 83: ...DOCSIS 2 0 Advanced Cable Gateway CGD24N v2 User Manual Index 3 v1 0 August 2009 RADIUS settings 2 8 WPA2 PSK 2 5 2 8 WPA PSK 2 5 2 8 WPS button 1 3 WPS Push N Connect 2 9 2 13...

Страница 84: ...DOCSIS 2 0 Advanced Cable Gateway CGD24N v2 User Manual Index 4 v1 0 August 2009...

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