NETGEAR CG814M manual Mail.xxx.yyy.com

Page 96

Reference Manual for the Model CG814M Wireless Cable Modem Gateway

•An IP address and subnet mask

•A gateway IP address, which is the address of the ISP’s router

•One or more domain name server (DNS) IP addresses

•Host name and domain suffix

For example, your account’s full server names may look like this:

mail.xxx.yyy.com

In this example, the domain suffix is xxx.yyy.com.

If any of these items are dynamically supplied by the ISP, your gateway automatically acquires them.

If an ISP technician configured your PC during the installation of the cable modem, or if you configured it using instructions provided by your ISP, you need to copy the configuration information from your PC’s Network TCP/IP Properties window or Macintosh TCP/IP Control Panel before reconfiguring your PC for use with the gateway. These procedures are described next.

Obtaining ISP Configuration Information for Windows Computers

As mentioned above, you may need to collect configuration information from your PC so that you can use this information when you configure the CG814M Gateway. Following this procedure is only necessary when your ISP does not dynamically supply the account information.

To get the information you need to configure the gateway for Internet access:

1.On the Windows taskbar, click the Start button, point to Settings, and then click Control Panel.

2.Double-click the Network icon.

The Network window opens, which displays a list of installed components.

3.Select TCP/IP, and then click Properties. The TCP/IP Properties dialog box opens.

4.Select the IP Address tab.

If an IP address and subnet mask are shown, write down the information. If an address is present, your account uses a fixed (static) IP address. If no address is present, your account uses a dynamically-assigned IP address. Click “Obtain an IP address automatically”.

5.Select the Gateway tab.

C-10	Preparing Your Network

Image 96

Contents NETGEAR, Inc Trademarks World Wide Web Page Contents USB Appendix a Appendix C Contents Contents About This Manual AudienceTypographical Conventions Special Message Formats Technical SupportKey Features Chapter IntroductionAbout the CG814M Gateway Built-in Cable ModemPowerful, True Firewall Content Filtering802.11b Standards-based Wireless Networking Configurable Auto Uplink Ethernet Connection USB PortProtocol Support Easy Installation and Management What’s in the Box? Firewall’s Front PanelLED Descriptions Gateway’s Rear Panel CG814M Gateway Rear PanelIntroduction Connecting the Gateway to the Internet What You Will Need Before You BeginLAN Hardware Requirements Computer RequirementsLAN Configuration Requirements Internet Configuration RequirementsWhere Do I Get the Internet Configuration Parameters? Connecting the Gateway to the Internet Record Your Internet Connection Information Connecting the CG814M Gateway Connecting to Your ComputerEthernet USBConnecting to your Cable Service Provider WirelessConnecting the Power Adapter Log in to the GatewayLogin window opens as shown in -3below Connect to the Internet Connecting the CG814M Gateway to the Internet ConfigurationConnecting the Gateway to the Internet Connecting the Gateway to the Internet Connecting the Gateway to the Internet Chapter Wireless Configuration Considerations For a Wireless NetworkSecurity Wireless Settings Placement and RangeWireless Settings Restricting Wireless Access by MAC AddressConfiguring Wired Equivalent Privacy WEP Wireless Configuration Wireless Configuration Protecting Access to Your CG814M Gateway Changing the Built-In PasswordChapter Protecting Your Network Blocking Keywords, Sites, and Services Set Password menuBlock Keywords and Domains Click on the Block Sites link of the Content Filtering menu Blocking Services ProxyPort Blocking CookiesPort Forwarding Port Blocking menuTo forward inbound traffic Port Triggering Considerations for Port ForwardingTo configure Port Triggering Setting Up a Default DMZ Host Respond to Ping on Internet WAN PortProtecting Your Network Chapter Managing Your Network Network Status InformationViewing Gateway Status This screen shows the following parametersMenu 3.2 Router Status Fields Connection Status Connection screenConfiguring LAN IP Settings LAN IP SetupCurrent System Time Dhcp Use router as Dhcp serverViewing and Emailing Logged Information Logs menuErasing Configuration Enabling Logs Event E-mail NotificationRunning Diagnostic Utilities Diagnostics menuManaging Your Network Chapter Troubleshooting Basic FunctionsPower LED Not On Test LED Stays OnLocal Link LEDs Not On Troubleshooting the Web Configuration Interface Cable Link LED Not OnTroubleshooting the ISP Connection Troubleshooting a TCP/IP Network Using a Ping UtilityTesting the LAN Path to Your Gateway Testing the Path from Your PC to a Remote Device Troubleshooting Appendix a Technical Specifications TCP/IPTechnical Specifications Appendix B Networks, Routing, and Firewall Basics Related Publications Basic Router ConceptsWhat is a Router? Routing Information ProtocolIP Addresses and the Internet Three Main Address Classes Netmask EqualsSubnet Addressing Example of Subnetting a Class B AddressNetmask Notation Translation Table for One Octet Private IP Addresses Single IP Address Operation Using NAT Single IP Address Operation Using NATMAC Addresses and Address Resolution Protocol Related DocumentsIP Configuration by Dhcp Internet Security and FirewallsDomain Name Server What is a Firewall? Denial of Service AttackStateful Packet Inspection Wireless Networking Wireless Network ConfigurationAd-hoc Mode Peer-to-Peer Workgroup Infrastructure ModeExtended Service Set Identification Essid Authentication and WEP EncryptionWireless Channel Selection Table B-1 802.11b Radio Frequency ChannelsUplink Switches and Crossover Cables Ethernet CablingCable Quality Appendix C Preparing Your Network Preparing Your Computers for TCP/IP NetworkingConfiguring Windows 95, 98, and ME for TCP/IP Networking Install or Verify Windows Networking ComponentsPreparing Your Network Enabling Dhcp to Automatically Configure TCP/IP Settings Selecting Windows’ Internet Access MethodConfiguring Windows NT, 2000 or XP for IP Networking Verifying TCP/IP PropertiesConfiguring the Macintosh for TCP/IP Networking MacOS 8.6 orMacOS Verifying TCP/IP Properties for Macintosh Computers What Is Your Configuration Information? Verifying the Readiness of Your Internet AccountMail.xxx.yyy.com Preparing Your Network Restarting the Network Glossary Networks See Network Address Translation Connection