Wireless Cable Modem Gateway CGD24G User Manual NETGEAR, Inc. 350 East Plumeria Drive San Jose, CA 95134 USA 202-10389-02 May 2009 v1.
© 2009 by NETGEAR, Inc. All rights reserved. Technical Support Please refer to the support information card that shipped with your product. By registering your product at http://www.netgear.com/register, we can provide you with faster expert technical support and timely notices of product and software upgrades. NETGEAR, INC. Support Information Phone: 1-888-NETGEAR, for US & Canada only. For other countries, see your Support information card. E-mail: support@netgear.
Regulatory Compliance Information This section includes user requirements for operating this product in accordance with National laws for usage of radio spectrum and operation of radio devices. Failure of the end-user to comply with the applicable requirements may result in unlawful operation and adverse action against the end-user by the applicable National regulatory authority. This product's firmware limits operation to only the channels allowed in a particular Region or Country.
Lietuvių [Lithuanian] Šiuo NETGEAR Inc. deklaruoja, kad šis Radiolan atitinka esminius reikalavimus ir kitas 1999/5/EB Direktyvos nuostatas. Nederlands [Dutch] Hierbij verklaart NETGEAR Inc. dat het toestel Radiolan in overeenstemming is met de essentiële eisen en de andere relevante bepalingen van richtlijn 1999/5/EG. Malti [Maltese] Hawnhekk, NETGEAR Inc., jiddikjara li dan Radiolan jikkonforma mal-htigijiet essenzjali u ma provvedimenti ohrajn relevanti li hemm fid-Dirrettiva 1999/5/EC.
FCC Declaration Of Conformity We NETGEAR, Inc., 4500 Great America Parkway, Santa Clara, CA 95054, declare under our sole responsibility that the model CGD24G Wireless Cable Modem Gateway complies with Part 15 of FCC Rules. Operation is subject to the following two conditions: • This device may not cause harmful interference, and • This device must accept any interference received, including interference that may cause undesired operation.
vi v1.
Contents Wireless Cable Modem Gateway CGD24G User Manual About This Manual Conventions, Formats and Scope .................................................................................... xi How to Use This Manual ..................................................................................................xii How to Print this Manual ...................................................................................................xii Revision History ...............................................
Wireless Cable Modem Gateway CGD24G User Manual Using a PIN Entry to Add a WPS Client .................................................................2-12 Connecting Additional Wireless Client Devices ............................................................2-14 Adding Just WPS Clients .......................................................................................2-14 Adding Both WPS and Non-WPS Clients ..............................................................2-14 Wireless Guest Networks ..
Wireless Cable Modem Gateway CGD24G User Manual Reserving an IP Address for DHCP Use ................................................................ 5-11 Enabling Remote Management ....................................................................................5-12 Reverting to Factory Default Setting ......................................................................5-13 Managing the URL to Connect to The Gateway ....................................................
Wireless Cable Modem Gateway CGD24G User Manual x Contents v1.
About This Manual The NETGEAR® Wireless Cable Modem Gateway CGD24G User Manual describes how to install, configure and troubleshoot the CGD24G 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.
Wireless Cable Modem Gateway CGD24G User Manual 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 http://kbserver.netgear.com.
Wireless Cable Modem Gateway CGD24G User Manual – Printing a PDF version of the complete manual. Use the Complete PDF Manual link at the top left corner of any page. • – Click the Complete PDF Manual link at the top left corner 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 corner of your browser window.
Wireless Cable Modem Gateway CGD24G User Manual Part Number Version Number Date Description 202-10389-02 v1.0 November 2008 • Added information about grounding the cable distribution system. • Added information about attaching brackets to the CGD24G gateway, allowing it to be placed vertically. • Made minor changes and corrections. 02-10389-02 v1.1 May 2009 • Added MSO login. • Updated LED behavior and screen shots . • Removed references to static IP and RIP Setup features.
Chapter 1 Connecting the Gateway to the Internet This chapter describes how to set up the CGD24G 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: • CGD24G Wireless Cable Modem Gateway • AC power adapter • Category 5 (CAT5) Ethernet cable • USB cable • Two brackets If any of the parts are incorrect, missing, or damaged, contact your NETGEAR dealer.
Wireless Cable Modem Gateway CGD24G User Manual Router Front Panel The front panel of the CGD24G gateway contains status LEDs. Figure 1-2 You can use the LEDs to verify connections.The following table lists and describes each LED on the front panel of the CGD24G gateway. Table 1-1. LED Descriptions LED Description Power • On: Power is supplied to the gateway, and the gateway has completed its initialization. • Off: Power is not supplied to the gateway.
Wireless Cable Modem Gateway CGD24G User Manual Table 1-1. LED Descriptions (continued) Downstream Link • On: The gateway has completed its downstream scan, and is performing upstream operations, is completing configuration of the cable interface, or is fully functional with its cable interface. • Blink: The gateway has just powered up or it is performing a downstream scan. • Off: The gateway’s self-test and initialization is complete but it has not completed the downstream scan.
Wireless Cable Modem Gateway CGD24G User Manual Router Side Panel The side panel of the CGD24G gateway contains a WPS button. You can use the Wi-Fi Protected Setup (WPS) feature with clients on the network that are Wi-Fi certified and WPA capable. See “Using Push 'N' Connect (WPS) to Configure Your Wireless Network and Security” on page 2-10.
Wireless Cable Modem Gateway CGD24G User Manual Connecting the Gateway Note: First, install and set up the gateway using an Ethernet or USB connection to your computer. Then configure the wireless settings. See Chapter 2, “Wireless Configuration for instructions for wireless settings. Follow these steps to install your gateway: 1. Connect the gateway. a. Turn off your computer. b.
Wireless Cable Modem Gateway CGD24G User Manual B Figure 1-6 Note: The CGD24G 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 gateway and to a USB port on your computer. d.
Wireless Cable Modem Gateway CGD24G User Manual Figure 1-7 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 the online document “Preparing Your Network” in Appendix B. a.
Wireless Cable Modem Gateway CGD24G User Manual b. Log in to the gateway. There are two methods to log in: • For superuser access, enter mso for the user name and changeme for the password, both in lower case letters. • To access the gateway features except for content filtering, enter admin for the user name and password for the password, both in lower case letters. When you connect to the gateway, the Gateway Status screen displays.
Wireless Cable Modem Gateway CGD24G User Manual Configuring the Basic Settings To configure the cable network settings, in the main menu, under Setup, select Basic Settings. The Basic Settings screen displays. Figure 1-10 The default setting is for DHCP. Click Apply to save your settings. After you have connected to the Internet, the network configuration settings on the Basic Settings screen match the cable network settings. Connecting the Gateway to the Internet 1-9 v1.
Wireless Cable Modem Gateway CGD24G User Manual 1-10 Connecting the Gateway to the Internet v1.
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.
Wireless Cable Modem Gateway CGD24G User Manual • 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 WPSenabled 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.
Wireless Cable Modem Gateway CGD24G User Manual • 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.
Wireless Cable Modem Gateway CGD24G User Manual To view or manually configure the wireless settings: 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. 2. In the main menu, under Setup, select Wireless Settings. The Wireless Settings screen displays. Figure 2-1 The settings for this screen are explained in Table 2-1 on page 2-5. 3. If you make changes, you must click Apply for them to take effect.
Wireless Cable Modem Gateway CGD24G User Manual Table 2-1. Wireless Settings Settings Wireless Network Description 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.
Wireless Cable Modem Gateway CGD24G User Manual Table 2-1. Wireless Settings (continued) Settings Security Options (continued) Description • WEP (Wired Equivalent Privacy) 64-bit encryption WEP security uses encryption keys. Wired Equivalent Privacy (WEP) data encryption provides data security. WEP Shared Key authentication • WEP (Wired Equivalent and WEP data encryption will block all but the most Privacy) 128-bit encryption determined eavesdropper. You can select 64-bit or 128-bit encryption.
Wireless Cable Modem Gateway CGD24G User Manual 3. In the Wireless Settings screen, 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 Settings for WEP encryption are shown in the following figure (which is the bottom part of the Wireless Settings screen). Figure 2-2 4. Select the WEP security encryption from the Authentication drop-down list.
Wireless Cable Modem Gateway CGD24G User Manual • Key 1 through Key 4: You can manually enter the four data encryption keys. These values must be identical on all computers and access points in your network. For 64-bit WEP, enter 10 hexadecimal digits (any combination of 0–9 or A–F). For 128-bit WEP, enter 26 hexadecimal digits. • 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.
Wireless Cable Modem Gateway CGD24G User Manual • WPA2. This setting provides the AES encryption type with authentication from a RADIUS server. The content that you see in the Wireless Settings screen depends on the WPA setting that you select. Figure 2-3 displays the WPA-PSK and WPA2_PSK settings. Figure 2-4 displays the WPA and WPA2 settings.. Figure 2-3 Figure 2-4 Wireless Configuration 2-9 v1.
Wireless Cable Modem Gateway CGD24G User Manual 4. Depending on the WPA settings that you select, enter the required information: • For WPA-PSK or WPA2-PSK, enter the pre-shared key, which is a passphrase between 8 and 63 characters. • For WPA or WPA2, enter the settings for the RADIUS Server: – Primary Radius Server IP Address. The IP address of the RADIUS server. The default is 0.0.0.0. – Radius Port. Port number of the RADIUS server. The default is 1812. – Shared Key.
Wireless Cable Modem Gateway CGD24G User Manual A WPS client can be added using the Push Button method or the PIN method. • Using the Push Button. This is the preferred method. See the following section, “Using a WPS Button to Add a WPS Client. • Entering a PIN. For information about using the PIN method, see “Using a PIN Entry to Add a WPS Client” on page 2-12. Using a WPS Button to Add a WPS Client Any wireless computer or wireless adapter that will connect to the gateway wirelessly is a client.
Wireless Cable Modem Gateway CGD24G User Manual When the gateway adds the WPS client, it sends the SSID and WPA-PSK or WPA2-PSK configuration to the client. Note: If the Security Option in the Wireless Settings screen was set to Disabled, the gateway automatically changes it to WPA-PSK or WPA2-PSK (including a PSK security password) when it successfully adds the WPS client. You can view the gateway’s new settings in the Wireless Settings screen.
Wireless Cable Modem Gateway CGD24G User Manual 3. In the main menu, under Setup, select WPS Settings. The Wi-Fi Protected Setup (WPS) screen displays. Figure 2-7 4. Select the PIN STA PIN radio button. 5. Go to the client wireless computer. Run a WPS configuration utility. Follow the utility’s instructions to generate a PIN. Take note of the client PIN. 6. Enter the client’s PIN in the STA PIN field in the WiFi Protected Setup screen (Figure 2-7) of the gateway, and then click Add.
Wireless Cable Modem Gateway CGD24G User Manual Adding Just WPS Clients To add a wireless client device that is WPS-enabled, follow the procedures in “Using a WPS Button to Add a WPS Client” on page 2-11 or “Using a PIN Entry to Add a WPS Client” on page 2-12. Adding Both WPS and Non-WPS Clients For non-WPS clients, you cannot use the WPS setup procedures to add them to the wireless network.
Wireless Cable Modem Gateway CGD24G User Manual How to Configure a Wireless Guest Network To configure a wireless guest network: 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. In the main menu, under Setup, select Wireless Guest Network.The Wireless Guest Network Settings screen displays Figure 2-8 3.
Wireless Cable Modem Gateway CGD24G User Manual • IP Address. Enter the IP address for the guest network The default IP addresses are as follows: – Netgear_1: 192.168.1.1 – Netgear_2: 192.168.2.1 – Netgear_3: 192.168.3.1 Note: The subnet mask has a permanent address of 255.255.255. • • • Lease Pool Start. Enter the lease pool start IP address for the guest network. The default lease pool start IP addresses are as follows: – Netgear_1: 192.168.1.10 – Netgear_2: 192.168.2.10 – Netgear_3: 192.168.3.
Wireless Cable Modem Gateway CGD24G User Manual How to Configure Wireless Security for a Wireless Guest Network Note: To restore all guest network settings, including the wireless security settings, to their default settings, click Restore Guest Network Settings. After you have completed step 5 in the previous section, the screen expands and the security options for the guest network display. Figure 2-9 Wireless security is disabled by default.
Wireless Cable Modem Gateway CGD24G User Manual Configuring Wi-Fi Multimedia Wi-Fi Multimedia (WMM), also referred to as Wireless Multimedia, is a subset of the 802.11e standard. WMM allows wireless traffic to have a range of priorities, depending on the kind of data. Time-dependent information, like video, audio, or voice will have a higher priority than normal traffic.
Wireless Cable Modem Gateway CGD24G User Manual – • Off. Acknowledgement messages are disabled. Power Save Support. Select the power save mode to conserve battery power in smaller devices that are connected to the gateway: – – On. Power save support is enabled. Off. Power save support is disabled. 4. Click Apply to save your settings.
Wireless Cable Modem Gateway CGD24G User Manual Figure 2-11 By default, the Access List table is empty. You must add wireless clients so that they will have access to the wireless network when the list is enabled. 5. Adjust the access list as needed for your network. You can add 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 computer to capture its MAC address. Then click Add.
Chapter 3 Content Filtering and Firewall Rules This chapter describes how to use content filtering and firewall rules for the gateway. Note: 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. To access the content filtering features you must log in to the gateway with the mso user name and its default password changeme, or whatever new password you have set up.
Wireless Cable Modem Gateway CGD24G User Manual 2. Enter the following information: • Contact Email Address. Enter an e-mail address to which the logs will be sent. Use a full e-mail address (for example, ChrisXY@myISP.com). • SMTP Server Name. Enter 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. • Sender Email Address. Enter an e-mail address from which the logs will be sent.
Wireless Cable Modem Gateway CGD24G User Manual 1. In the main menu, under Content Filtering, select Block Sites. The Block Sites screen displays. Figure 3-2 2. To use keyword blocking, select the Keyword Blocking Enable check box. You can enter up to eight keywords. After you have entered a keyword in the field to the left of the Add Keyword button, click Add Keyword. The keyword will be shown in the Keyword List. Note the following: • If the keyword XXX is specified, the URL www.zzzyyqq.com/xxx.
Wireless Cable Modem Gateway CGD24G User Manual If the domain www.zzzyyqq.com is specified, the URL is blocked, along with all other URLs in the www.zzzyyqq.com site. To remove a domain from the Domain List, select the domain, and then click Remove Domain. 4. Click Apply to save your settings. Blocking Services You can use the Services screen to control which services are enabled or disabled. To enable or disable certain gateway features and web features: 1.
Wireless Cable Modem Gateway CGD24G User Manual Table 3-1. Services (continued) Settings Description VPN Pass Through When VPN passthrough is enabled, IPSec and PPTP traffic are forwarded. When it is disabled, this traffic is blocked. Multicast When multicast is enabled, the gateway passes multicasting streams through the firewall. Web Features Filter Proxy Filter Cookies When enabled, these features are not blocked by the firewall. When disabled, these features are blocked by the firewall.
Wireless Cable Modem Gateway CGD24G User Manual 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. 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.
Wireless Cable Modem Gateway CGD24G User Manual • • Protocol. Select the protocol for the ports: – TCP. Select TCP only. – UDP. Select UDP only. – Both. Select both TCP and UDP. Local IP Address. Complete the local IP address for the computer that is using the service. Note: To reset the selection in the Service field and to clear all the fields in the Add Custom Rules table, click Reset. 4. Perform one of the following actions: • Click Add to save your settings.
Wireless Cable Modem Gateway CGD24G User Manual To configure port blocking and services to block specific outbound traffic: 1. In the main menu, under Advanced, select Port Blocking. The Port Blocking screen displays. Figure 3-5 2. Under Add Predefined Service, select a predefined service from the Service field. (For example, FTP, which uses TCP ports 20 and 21.) 3.
Wireless Cable Modem Gateway CGD24G User Manual • Local IP Address. Complete the local IP address for the computer that is using the service. Note: To reset the selection in the Service field and to clear all the fields in the Add Custom Rules table, click Reset. 4. Perform one of the following actions: • Click Add to save your settings. The Active Filters table now displays the list of ports that are currently forwarded.
Wireless Cable Modem Gateway CGD24G User Manual 3-10 Content Filtering and Firewall Rules v1.
Chapter 4 Managing Your Network This chapter describes how to perform network management tasks with your CGD24G gateway. When you log in to the gateway, these tasks are grouped under Maintenance.
Wireless Cable Modem Gateway CGD24G User Manual Figure 4-1 The Gateway Status screen fields are explained in the following table. Table 4-1. Gateway Status Fields Field Information Description Standard Specification Compliant The specification to which the gateway’s cable interface is compatible. Hardware Version The hardware version of the gateway. Software Version The software version of the gateway. Cable Modem MAC Address The MAC address used by the cable modem port of the gateway.
Wireless Cable Modem Gateway CGD24G User Manual Table 4-1. Gateway Status Fields (continued) Field Status Description 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. Device IP Address The IP address of you gateway, as seen from the Internet.
Wireless Cable Modem Gateway CGD24G User Manual The gateway automatically goes through the following steps in the provisioning process: 1. It acquires and locks the downstream channel 2. It acquires the upstream parameters and range. 3. It locks the upstream channel 4. It acquires the IP address through DHCP Changing the Built-In Password For security reasons, the gateway has its own user name and password.
Wireless Cable Modem Gateway CGD24G User Manual 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.
Wireless Cable Modem Gateway CGD24G User Manual 2. In the main menu, under Maintenance, select Backup Settings. The Backup Settings screen displays. Figure 4-4 You can save a copy of the current configuration settings or restore the saved settings: • To save a copy of the current configuration settings, click Backup. • To restore the saved configuration settings from a backup file: a. Click Browse. b. Locate and select the previously saved backup file (by default, CGD24G-100NAS.cfg). c. Click Restore.
Wireless Cable Modem Gateway CGD24G User Manual Figure 4-5 To clear the log, click Clear Log; to refresh the log, click Refresh. You can enable e-mail notification to receive these logs in an e-mail message. For information about e-mail notifications, see “Configuring Logs” on page 3-1. Running Diagnostic Utilities You can use the Diagnostics screen to test connectivity to a PC using the ping command. To start a ping test: 1. Log in to the gateway using its default address of http://192.168.0.
Wireless Cable Modem Gateway CGD24G User Manual Figure 4-6 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 of the ping packet. • No. of Pings. Enter the number of times you would like to ping the computer. • Ping Interval. Enter the time you would like to wait between the pings. 4. Click Start Test.To stop the test while in progress, click Abort Test. 5.
Wireless Cable Modem Gateway CGD24G User Manual Chapter 5 Customizing Your Network This chapter describes how to customize your network through the advanced settings on your CGD24G gateway. When you log in to the gateway, these tasks are grouped under Advanced.
Wireless Cable Modem Gateway CGD24G User Manual To configure dynamic DNS: 1. In the main menu, under Advanced, select Dynamic DNS. The DDNS screen displays. Figure 5-1 2. From the DDNS Service pull down menu, select www.DynDNS.org. 3. Enter the following information: • User Name. Enter the user name for your dynamic DNS account. • Password. Enter the password (or key) for your dynamic DNS account. • Host Name. Enter the host same that your dynamic DNS service provider gave you.
Wireless Cable Modem Gateway CGD24G User Manual To configure MAC filtering: 1. In the main menu, under Advanced, select MAC Filtering. The MAC Filtering screen displays. Figure 5-2 The Trusted Devices table shows the PCs that are allowed access to the Internet through the gateway. Click Refresh to update the Trusted Devices table. 2.
Wireless Cable Modem Gateway CGD24G User Manual • • To deselect a PC from the MAC Filter List, select the PC from the drop-down list, and then clear its 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 Delete. 4. Select the days and times that a selected PC will be blocked: a. Day(s) to Block.
Wireless Cable Modem Gateway CGD24G User Manual 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 response. As such, it would be handled in accordance with the port forwarding rules.) Note: Only one PC can use a port triggering application at any time.
Wireless Cable Modem Gateway CGD24G User Manual – • • • End Port. Enter the start port for the trigger range. Target Range. The target range consists of the range of incoming ports that will be opened when triggered: – Start Port. Enter the start port for the target range. – End Port. Enter 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.
Wireless Cable Modem Gateway CGD24G User Manual 2. If you want the gateway to respond to a ping from the Internet, select the Respond to Ping on WAN check box. Responding to pings can be useful in a diagnostic situation. 3. Complete the DMZ IP address in the DMZ Address field to designate a PC that is available to anyone 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.
Wireless Cable Modem Gateway CGD24G User Manual 2. Enter the following LAN IP settings: • LAN IP Address. Enter the LAN IP address that you would like to assign for your gateway in dotted decimal notation. The factory default settings is 192.168.0.1. • Subnet Mask. Enter the network number portion of an IP address. Unless you are implementing subnetting, use 255.255.255.0 as the subnet mask. • DHCP Server.
Wireless Cable Modem Gateway CGD24G User Manual To delete an IP address from the DHCP Client Lease Info table: 1. In the DHCP Client Lease Info table, click the radio button for the MAC and IP address that you want to remove. 2. Click Delete to remove the information for the selected MAC and IP address from the DHCP Client Lease Info table. To remove all information from the DHCP Client Lease Info table, click Clear DHCP Leases.
Wireless Cable Modem Gateway CGD24G User Manual 3. Enter the following information: • Remote Password. Enter the user name that will be used from the remote PC to manage the gateway. This password is different from the password that you use to log into the gateway from your LAN. Note: Be sure to change the gateway’s remote management password to a very secure password before enabling remote management.
Wireless Cable Modem Gateway CGD24G User Manual Managing the URL to Connect to The Gateway To manage the gateway via the Internet, you need its public IP address, as seen from the Internet. This public IP address is allocated by your ISP, and is shown under “IP Address to connect this device” in the Remote Management screen. Note that if your ISP account uses a dynamic IP address instead of a fixed IP address, the address can change each time you connect to your ISP.
Wireless Cable Modem Gateway CGD24G User Manual 3. Enter the following information: • Advertisement Period. Enter how often the gateway broadcasts its UPnP information. The default is 30 minutes.Shorter durations will ensure that control points have current device status at the expense of additional network traffic. Longer durations may compromise the freshness of the device status but can significantly reduce network traffic. • Advertisement Time to Live.
Chapter 6 Troubleshooting This chapter gives information about troubleshooting your CGD24G Wireless Cable Modem Gateway. For the common problems listed, go to the section indicated. Tip: NETGEAR provides helpful articles, documentation, and the latest software updates at http://www.netgear.com/support. • Have I connected the gateway correctly? Go to “Basic Functions” on page 6-1. • I cannot access the gateway configuration with my browser. Go to “Connecting to the Gateway’s Main Menu” on page 6-3.
Wireless Cable Modem Gateway CGD24G User Manual Using LEDs to Troubleshoot The following table provides help when using the LEDs for troubleshooting. Table 6-1. 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.
Wireless Cable Modem Gateway CGD24G User Manual 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. • 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.
Wireless Cable Modem Gateway CGD24G User Manual Troubleshooting the ISP Connection 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 Gateway” on page 1-5. Additionally, your PC may not have the gateway configured as its TCP/IP gateway.
Wireless Cable Modem Gateway CGD24G User Manual 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 6-2. – 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.
Wireless Cable Modem Gateway CGD24G User Manual 6-6 Troubleshooting v1.
Appendix A Technical Specifications and Factory Default Settings This appendix provides technical specifications and default factory settings for the CGD24G Wireless Cable Modem Gateway. Technical Specifications Table A-1.
Wireless Cable Modem Gateway CGD24G User Manual Table A-1. Technical Specifications (continued) Specification Description 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 ranges 2.412~2.462 GHz (US) 2.412~2.472 GHz (Japan) 2.412~2.
Wireless Cable Modem Gateway CGD24G User Manual Table A-2.
Wireless Cable Modem Gateway CGD24G User Manual A-4 Technical Specifications and Factory Default Settings v1.
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 Using Microsoft Vista and Windows XP to Manage Wireless Network Connections 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://documentation.netgear.
Wireless Cable Modem Gateway CGD24G User Manual B-6 Related Documents v1.
Index B dynamic service 5-1 primary server 1-10 secondary server 1-10 backing up the configuration file 4-5 blocking keywords 3-2 PCs based on MAC address 5-5 ports 3-5, 3-8 services 3-5 sites 3-2 C cable channel 4-3 cable line splitter 1-5 cable network settings 1-9 Cat5 cable 1-4 coaxial cable 1-5 configuration backup 4-5 erasing 4-6 factory default 4-5, 5-13 connected wireless devices adding to 2-22 list of 2-22 crossover cable 5-2 D default gateway 1-10, 1-12 Denial of Service (DoS) 3-1 DHCP 1-9 re
Wireless Cable Modem Gateway CGD24G User Manual connection 1-11, 1-12 server 1-11 LAN IP address 5-11 IP settings 5-10 LEDs description 1-2 troubleshooting 5-2 rules inbound 3-5 outbound 3-4, 3-5 S secondary DNS server 1-10 security options 2-5, 2-6 side panel 1-3 M MAC address 4-2 location of 2-22 restrict access based on MAC address 2-21 SSID 2-5 Static IP address 1-10 static IP address 1-10, 1-12 static IP mask 1-10, 1-12 MAC filtering 5-5 MD5 authentication 5-3 T O TCP/IP network, troubleshootin
Wireless Cable Modem Gateway CGD24G User Manual card access list 2-5 channel 2-5 guest network 2-15 guest network security options 2-17 manually configuring settings 2-3 multimedia 2-19 wireless security 2-14 WPA 2-6, 2-8 RADIUS settings 2-10 WPA2 2-6, 2-9 RADIUS settings 2-10 WPA2-PSK 2-6, 2-8 WPA-PSK 2-6, 2-8 WPS 2-10 Index-3 v1.
Wireless Cable Modem Gateway CGD24G User Manual Index-4 v1.
