Motorola SBG-940 User Manual
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Motorola SBG-940 User Manual

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Summary of Contents for Motorola SBG-940

  • Page 1 User Guide SBG940 Wireless Cable Modem Gateway...
  • Page 2 IN THE INSTALLATION AND TROUBLESHOOTING INSTRUCTIONS. REFER ALL SERVICING TO QUALIFIED SERVICE PERSONNEL. CAUTION: CHANGES AND MODIFICATIONS NOT EXPRESSLY APPROVED BY MOTOROLA FOR COMPLIANCE COULD VOID USER’S AUTHORITY TO OPERATE THE EQUIPMENT. When using this device, basic safety precautions should always be followed to reduce the risk of fire, electric shock and injury to persons, including the following: •...
  • Page 3 Caring for the Environment by Recycling When you see this symbol on a Motorola product, do not dispose of the product with residential or commercial waste. Recycling your Motorola Equipment Please do not dispose of this product with your residential or commercial waste.
  • Page 4 Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Be sure that the outside cable system is grounded, so as to provide some protection against voltage surges and built-up static charges. Article 820-20 of the NEC (Section 54, Part I of the Canadian Electrical Code) provides guidelines for proper grounding and, in particular, specifies the CATV cable ground shall be connected in the grounding system of the building, as close to the point of cable entry as practical.
  • Page 5 Motorola, Inc. Motorola reserves the right to revise this publication and to make changes in content from time to time without obligation on the part of Motorola to provide notification of such revision or change. Motorola provides this guide without warranty of any kind, either implied or expressed, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose.

  • Page 6: Table Of Contents

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Contents Overview ............1 Easy Setup .
  • Page 7 Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Basic Configuration ..........25 Starting the SBG940 Setup Program .
  • Page 8 Running the Motorola USB Driver Removal Utility ........

  • Page 9: Overview

    Thank you for purchasing a Motorola Wireless Cable Modem Gateway SBG940 for your home, home office, or small business/enterprise. Applications where the Motorola SBG940 is especially useful include: • Households having multiple computers requiring connection to the Internet and each other •...

  • Page 10: Easy Setup

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Easy Setup It is much easier to configure a local area network (LAN) using an SBG940 than using traditional networking equipment: • The Installation Assistant application on the SBG940 Installation CD-ROM enables easy connection to the cable network.

  • Page 11: Powerful Features In A Single Unit

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Powerful Features in a Single Unit An SBG940 combines high-speed Internet access, networking, and computer security for a home or small-office LAN. An SBG940 provides: • An integrated high-speed cable modem for continuous broadband access to the Internet and other online services with much faster data transfer than traditional dial-up or ISDN modems •...

  • Page 12: Sample Hybrid Lan

    ® • One desktop Apple Macintosh computer on a wireless connection • One desktop PC on a wireless connection using a Motorola Wireless PCI Adapter • A laptop PC on a wireless connection using a Motorola Wireless Notebook Adapter •...

  • Page 13: Optional Accessories

    Optional Accessories All networks are composed of multiple devices. The SBG940 works with any IEEE 802.11g or IEEE 802.11b compliant client product. Motorola supplies a range of accessories for use with the SBG940. Some examples are: Wireless Ethernet Ethernet Broadband...

  • Page 14: Front Panel

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Front Panel The front panel provides indicator lights. The display is dark unless there is a connection or activity on an interface: Light Flashing Never flashes The AC power is connected properly Scanning for a receive (downstream) The downstream channel is connected channel connection...

  • Page 15: Rear Panel

    Use the cable connector to connect to the coaxial cable outlet. Removable, adjustable antenna. If necessary, contact your cable provider about obtaining an optional Motorola wireless high gain antenna to increase WLAN performance and coverage. Use the AC connector to connect to the AC power outlet.

  • Page 16: Label On The Bottom Of The Sbg940

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Label on the Bottom of the SBG940 To receive data service, you need to provide the MAC address marked HFC MAC ID to your cable provider: HFC MAC ID SBG940 LAN Choices The SBG940 enables you to connect up to 253 client...

  • Page 17: Wireless Lan

    Your maximum wireless operation distance depends on the type of materials through which the signal must pass and the location of your antennas and clients (stations). Motorola cannot guarantee wireless operation for all supported distances in all environments. An optional Motorola high gain antenna can improve wireless performance.

  • Page 18: Wired Ethernet Lan

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Wired Ethernet LAN Each computer on the 10/100Base-T Ethernet LAN requires an Ethernet network interface card (NIC) and driver software installed. Because the SBG940 Ethernet port supports auto-MDIX, you can use straight-through or cross-over cable to connect a hub, switch, or computer.
  • Page 19 Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB A wired Ethernet LAN with more than four computers requires one or more hubs, switches, or routers. You can: • Connect a hub or switch to any Ethernet port on the SBG940 •...

  • Page 20: Usb Connection

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB USB Connection ® ™ ® You can connect a single PC running Windows 98 Second Edition, Windows XP , Windows Me , or ® Windows 2000 to the SBG940 USB V1.1 port. For cabling instructions, see “Connecting a PC to the USB Port”.

  • Page 21: Security

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Security The SBG940 provides: • firewall to protect the SBG940 LAN from undesired attacks over the Internet • For wireless transmissions, data encryption and network access control Network Address Translation (NAT) provides some security because the IP addresses of SBG940 LAN computers are not visible on the Internet.

  • Page 22: Dmz

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB A de-militarized zone (DMZ) is one or more computers logically located outside the firewall between an SBG940 LAN and the Internet. A DMZ prevents direct access by outside users to private data. For example, you can set up a web server on a DMZ computer to enable outside users to access your website without exposing confidential data on your network.

  • Page 23: Port Forwarding

    IPSec stacks Related Documentation The SBG940 Quick Installation Guide also provides information about using the SBG940. For information about and documentation for Motorola home-networking products, visit the Motorola Home Networking page http://broadband.motorola.com/consumers/home_networking.asp. SBG940 User Guide...

  • Page 24: Installation

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Installation The following subsections provide information about installing the SBG940 hardware: • Before You Begin • Precautions • Signing Up for Service • Computer System Requirements • Connecting the SBG940 to the Cable System •...

  • Page 25: Precautions

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Precautions Postpone SBG940 installation until there is no risk of thunderstorm or lightning activity in the area. To avoid damaging the SBG940 or computers with static electricity: Always make the wall connection first.

  • Page 26: Computer System Requirements

    You can use the USB connection with any PC running Windows 98 Second Edition, Windows 2000, Windows Me, or Windows XP that has a USB interface. The USB connection requires special USB driver software that is supplied on the SBG940 Installation CD-ROM. You can upgrade your USB drivers from the Motorola Downloads page http://broadband.motorola.com/noflash/usb_drivers.asp.

  • Page 27: Connecting The Sbg940 To The Cable System

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Connecting the SBG940 to the Cable System Be sure the computer is on and the SBG940 is unplugged. Connect one end of the coaxial cable to the cable outlet or splitter. Connect the other end of the coaxial cable to the cable connector on the SBG940.

  • Page 28: Obtaining An Ip Address For Ethernet

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Obtaining an IP Address for Ethernet Obtaining an IP Address in Windows 98, Windows 98 SE, or Windows Me You must do the following on each Ethernet client PC running Windows 98, Windows 98 SE, or Windows Me: On the Windows Desktop, click Start.

  • Page 29: Connecting A Pc To The Usb Port

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Connecting a PC to the USB Port You can connect a single PC running Windows 98 Second Edition, Windows XP, Windows Me, or Windows 2000 to the SBG940 USB port. Caution! Before plugging in the USB cable, be sure the SBG940 Installation CD-ROM is inserted in the PC CD-ROM drive.

  • Page 30: Wall Mounting

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Wall Mounting If you mount the unit on the wall, you must: • Locate the unit as specified by the local or national codes governing residential or business cable TV and communications services.
  • Page 31 Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB If necessary, seat an anchor in each hole. Use M5 x 38 mm (#10-16 x 1 inch) screws with a flat underside and maximum screw head diameter of 10.5 mm to mount the SBG940.

  • Page 32: Wall Mounting Template

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Wall Mounting Template You can print this page to use as a wall mounting template. Be sure you print it at 100% scale. In Acrobat Reader, be sure that Fit To Page is not selected in the Print dialog box.

  • Page 33: Basic Configuration

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Basic Configuration The following sections provide information about basic SBG940 configuration: • Starting the SBG940 Setup Program • Changing the Default Password • Getting Help • Setting the Firewall Policy •...

  • Page 34: Starting The Sbg940 Setup Program

    Log In window: In the User ID field, type the User Name; the default is “admin” (this field is case sensitive). In the Password field, type the Password; the default is “motorola” (this field is case sensitive). SBG940 User Guide...
  • Page 35 Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Click Log In to display the SBG940 user configuration and status windows: Click To Perform Cable Configure and monitor the cable system connection. Gateway Configure and monitor the gateway preferences (see “Configuring the Gateway”).

  • Page 36: Changing The Default Password

    To change the default password: On the SBG940 Setup Program left panel, click Admin to display the ADMIN — basic page: In the Old Password field, type the old password. The default password is “motorola” (this field is case sensitive).

  • Page 37: Enabling Remote Access

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Enabling Remote Access You can enable remote access to the SBG940 over the Internet. You must know the userid, password, and public IP address assigned to your SBG940 to run the Setup Program over the Internet. Remote access is provided using a web browser on the remote client and connecting to the SBG940 web server.

  • Page 38: Getting Help

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Getting Help To get help on any underlined item or field, click the text. For example, if you click a field or the help button on the ADMIN —...

  • Page 39: Setting The Firewall Policy

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Setting the Firewall Policy The SBG940 firewall protects the SBG940 LAN from undesired attacks and other intrusions from the Internet. This section describes using the Firewall > POLICY — basic page to choose one of the predefined firewall policy templates provided with the SBG940.
  • Page 40 Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Click Apply to apply your changes. After you edit some fields and click Apply, you are warned that you must reboot your SBG940 for your change to take effect. Rebooting takes 10 to 15 seconds. After rebooting, you must log in again. If you have the need, you can: •...

  • Page 41: Firewall > Policy - Advanced Page

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Firewall > POLICY — advanced Page Do not create a custom firewall policy unless you have the necessary expertise and the need to do so. Instead, select one of the predefined policy templates as described in “Setting the Firewall Policy”.
  • Page 42 Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Firewall > POLICY — advanced page fields Field Description NEW FILTER ENTRY Use these fields to set up one or more custom firewall filters, if you have the necessary expertise.

  • Page 43: Firewall > Alert - Basic Page

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Firewall > ALERT — basic Page You can use this page to set the alert mechanism for firewall intrusion detection events. Firewall > ALERT — basic page fields Field or Button Description Intrusion Detection...

  • Page 44: Firewall > Alert - Email Page

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Firewall > ALERT — email Page You can use this page to configure the e-mail alert parameters: Firewall > ALERT — email page fields Field or Button Description E-mail Server IP Address Sets the e-mail server IP address in dotted-decimal...

  • Page 45: Firewall > Logs Page

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Firewall > LOGS Page You can use this page to set which firewall events are logged. Firewall > LOGS page fields Field or Button Description Enable Session Log Select this box to log every data session from the private LAN that was authorized by the SBG940 firewall.

  • Page 46: Gaming Configuration Guidelines

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Gaming Configuration Guidelines The following subsections provide information about configuring the SBG940 firewall and DMZ for gaming. Configuring the Firewall for Gaming By default, the SBG940 firewall is disabled. If, as recommended, you enable the firewall, refer to the game’s documentation to ensure that the necessary ports are open for use by that game.

  • Page 47: Configuring A Gaming Dmz Host

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Configuring a Gaming DMZ Host Caution! The gaming DMZ host is not protected by the firewall. It is open to communication or hacking from any computer on the Internet. Consider carefully before configuring a device to be in the DMZ. Some games and game devices require one of: •...

  • Page 48: Configuring The Gateway

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Configuring the Gateway This section describes the Gateway configuration pages in the SBG940 Setup Program: • Gateway > STATUS Page • Gateway > WAN Page • Gateway > LAN — nat config Page •...

  • Page 49: Gateway > Status Page

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Gateway > STATUS Page This page displays the gateway status information: These fields display settings that are set on the other Gateway pages. For field descriptions, see the following subsections that describe the fields on each tab.

  • Page 50: Gateway > Wan Page

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Gateway > WAN Page Use this page to configure the external (public) wide area network (WAN) interface: Gateway > WAN page fields Field Description Host Name If the cable provider requires a hostname to access their network, type the hostname they provided in this field.
  • Page 51 Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Gateway > WAN page fields (continued) Field Description DNS IP Address 1 The cable provider DNS server provides name-to-IP address resolution. If the cable DNS IP Address 2 provider does not automatically assign DNS addresses from their DHCP server, they must DNS IP Address 3 provide at least one DNS server IP address to enter in these fields in dotted-decimal...

  • Page 52: Gateway > Lan - Nat Config Page

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Gateway > LAN — nat config Page Use this page to enable and add clients to the CURRENT NAT PASSTHROUGH list: Gateway > LAN — nat config page fields Field or Button Description Enable NAT...

  • Page 53: Gateway > Lan - Dhcp Server Config Page

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Gateway > LAN — dhcp server config Page Only experienced network administrators should use this page to perform advanced DHCP server configuration: CAUTION! Do not modify these settings unless you are an experienced network administrator with strong knowledge of IP addressing, subnetting, and DHCP.

  • Page 54: Gateway > Lan - Dhcp Leases Page

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Gateway > LAN — dhcp leases Page Use this page to configure DHCP leases: Gateway > LAN — dhcp leases page fields Field Description GAMING DMZ Enable Gaming DMZ Select this box to designate the selected computer or gaming device as the gaming DMZ host.

  • Page 55: Gateway > Port Forwarding - Status Page

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Gateway > LAN — dhcp leases page fields (continued) Field Description RESERVE NEW IP You can reserve up to 32 IP addresses assigned by the SBG940 DHCP server for specific ADDRESS LAN clients.

  • Page 56: Gateway > Port Forwarding - Config Page

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Gateway > PORT FORWARDING — config Page Use this page to configure up to 32 virtual servers: Gateway > PORT FORWARDING — config page fields Field Description ADD NEW PORT You can configure up to 32 virtual servers.

  • Page 57: Gateway > Port Triggers - Predefined Page

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Gateway > PORT FORWARDING — config page fields (continued) Field Description LAN IP Address Sets the private LAN IP address for the port forwarding page. An Internet user must know the public IP address to access any port forwarding entry you define on the private LAN.
  • Page 58 Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Only one computer at a time connected to the SBG940 can use an application requiring port triggering. Use this page to view predefined port triggers: Gateway > PORT TRIGGERS — predefined page fields Field Description Name...

  • Page 59: Gateway > Port Triggers - Custom Page

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Gateway > PORT TRIGGERS — custom Page Use this page to create a custom port trigger: Gateway > PORT TRIGGERS — custom page fields Field Description ADD NEW SPECIAL APPLICATION Name Enter the unique name for the port trigger.

  • Page 60: Gateway > Log Page

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Gateway > LOG Page Use this page to view detailed information about the gateway: Gateway > LOG page fields Field Description Time The date and time in the format yyyy-mm-dd hh:mm:ss Priority Indicates the importance of the message.

  • Page 61: Configuring Tcp/Ip

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Configuring TCP/IP You must be sure all client computers are configured for TCP/IP (a protocol for communication between computers). Perform one of: • Configuring TCP/IP in Windows 98, Windows 98 SE, or Windows Me •...
  • Page 62 Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Double-click the Network icon to display the Network window: Although your SBG model number may be different than in the images in this guide, the procedure is the same.
  • Page 63 Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Click Protocol and click Add. The Select Network Protocol window is displayed: Click Microsoft in the Manufacturers section and click TCP/IP in the Network Protocols section. Click OK. Click TCP/IP on the Network window.

  • Page 64: Configuring Tcp/Ip In Windows 2000

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Configuring TCP/IP in Windows 2000 On the Windows Desktop, click Start. Select Settings and then Control Panel from the pop-up menus to display the Control Panel window: Double-click the Network and Dial-up Connections icon to display the Network and Dial-up Connections window: In the steps that follow, a connection number such as 1, 2, or 3 is a reference displayed on PCs with multiple...
  • Page 65 Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Click Local Area Connection number. The value of number varies from system to system. The Local Area Connection number Status window is displayed: Click Properties. Information similar to the following window is displayed: If Internet Protocol (TCP/IP) is in the list of components, TCP/IP is installed.
  • Page 66 Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Click Protocol on the Select Network Component Type window and click Add. The Select Network Protocol window is displayed: Click Internet Protocol (TCP/IP). Click OK. The Local Area Connection number Properties window is re-displayed. Be sure the box next to Internet Protocol (TCP/IP) is selected.
  • Page 67 Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Click Properties. The Internet Protocol (TCP/IP) Properties window is displayed: Be sure Obtain IP address automatically and Obtain DNS server address automatically are selected. Click OK to accept the TCP/IP settings. Click Close to close the Local Area Connection number Properties window.

  • Page 68: Configuring Tcp/Ip In Windows Xp

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Configuring TCP/IP in Windows XP On the Windows desktop, click Start to display the Start window: Click Control Panel to display the Control Panel window. The display varies, depending on the Windows XP view options.
  • Page 69 Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Click Network and Internet Connections to display the Network and Internet Connections window: Click Network Connections to display the LAN or High-speed Internet connections. Skip to step 7. If a Classic view similar to below is displayed: Double-click Network Connections to display the LAN or High-speed Internet connections.
  • Page 70 Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Right-click on the network connection. If more than one connection is displayed, be sure to select the one for your network interface: Select Properties from the pop-up menu to display the Local Area Connection Properties window: SBG940 User Guide...
  • Page 71 Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Select Internet Protocol (TCP/IP) and click Properties to display the Internet Protocol (TCP/IP) Properties window: Verify that the settings are correct, as shown above. Click OK to close the TCP/IP Properties window. Click OK to close the Local Area Connection Properties window.

  • Page 72: Verifying The Ip Address In Windows 98, Windows 98 Se, Or Windows Me

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Verifying the IP Address in Windows 98, Windows 98 SE, or Windows Me To check the IP address: On the Windows Desktop, click Start. Select Run. The Run window is displayed. Type winipcfg.exe and click OK.

  • Page 73: Verifying The Ip Address In Windows 2000 Or Windows Xp

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Verifying the IP Address in Windows 2000 or Windows XP To check the IP address: On the Windows Desktop, click Start. Select Run. The Run window is displayed. Type cmd and click OK to display a command prompt window.
  • Page 74 Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB To renew the IP address: Type ipconfig /renew and press . If a valid IP address is displayed as shown, Internet access should ENTER be available. Type exit and press to return to Windows.

  • Page 75: Setting Up Your Wireless Lan

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Setting Up Your Wireless LAN You can use the SBG940 as an access point for a wireless LAN (WLAN) without changing its default settings. Caution! To prevent unauthorized eavesdropping or access to WLAN data, you must enable wireless security. The default SBG940 settings provide no wireless security.

  • Page 76: Encrypting Wireless Lan Transmissions

    Uses a standard algorithm on all compliant products to generate a key from a textual passphrase • Will be incorporated into the new IEEE 802.11i wireless networking standard For new wireless LANs, we recommend purchasing client adapters that support WPA, such as the Motorola Wireless Notebook Adapter WN825G, Wireless PCI Adapter WPCI810G, Wireless USB Adapter WU830G.

  • Page 77: Configuring Wpa On The Sbg940

    (MIC), initialization vector (IV), and re-keying mechanism. The Advanced Encryption Standard algorithm implements symmetric key cryptography as a block cipher using 128-bit keys. We recommend this setting if all of your wireless clients support AES. The Motorola client adapters shown in “Optional Accessories” support AES.
  • Page 78 Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Choose the WPA Authentication type: Remote If a Remote Authentication Dial-In User Service (RADIUS) server is available, you can select this (Radius) option and go to step 6. A RADIUS server is typically used in a large corporate location. Local If you choose Pre-Shared Key (PSK) local authentication, if the passphrase on any client (WPA-PSK)

  • Page 79: Configuring Wep On The Sbg940

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Configuring WEP on the SBG940 Use Wired Equivalent Privacy (WEP) only if you have wireless clients that do not support WPA. Caution! If you use WEP encryption, you must configure the same WEP key on the SBG940 access point all wireless clients (stations).
  • Page 80 If all of your wireless adapters support 128-bit encryption, you can select Enable 128 Bit. Otherwise, you must select Enable 64 Bit. • For a WLAN client equipped with a Motorola wireless adapter, you can enter the WEP Passphrase when you perform Configuring a Wireless Client for WEP.

  • Page 81: Restricting Wireless Lan Access

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Restricting Wireless LAN Access The default SBG940 wireless settings enable any computer having a compatible wireless adapter to access your WLAN. To protect your network from unauthorized intrusions, you can restrict access to your WLAN to a limited number of computers on the Wireless >...

  • Page 82: Configuring The Wireless Network Name On The Sbg940

    Click the NETWORK tab to display: In the ESSID field, type a unique name. It can be any alphanumeric, case-sensitive string up to 32 characters. The default is “Motorola.” Do not use the default ESSID. Click Save Changes to save your changes.
  • Page 83 Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Click advanced to display the Wireless > SECURITY — advanced Page: Select Disable ESSID Broadcast to restrict WLAN access to clients configured with the same Network Name (ESSID) as the SBG940. Click Apply to save your changes.

  • Page 84: Configuring A Mac Access Control List On The Sbg940

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Configuring a MAC Access Control List on the SBG940 You can restrict wireless access to one to 32 wireless clients, based on the client MAC address. To configure a MAC access control list: On the SBG940 Setup Program left panel, click Wireless.

  • Page 85: Configuring The Wireless Clients

    Step 3 Step 1 Configure the adapter to obtain an IP address automatically. The Motorola wireless adapters are supplied with a client configuration program called Wireless Client Manager, which is installed in the Windows Startup group. On a PC with Wireless Client Manager installed, the icon is displayed on the Windows task bar.

  • Page 86: Configuring A Wireless Client For Wpa

    The client WEP key does not match the SBG940 WEP key On a WLAN client equipped with a Motorola wireless adapter, you can enter the WEP Passphrase you set when you configured the SBG940. For all other wireless adapters, you must enter the 64-bit or 128-bit WEP key generated by the SBG940.

  • Page 87: Wireless Pages In The Sbg940 Setup Program

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Wireless Pages in the SBG940 Setup Program Use the Wireless pages to control and monitor the wireless interface: • Wireless > STATUS Page • Wireless > NETWORK Page •...

  • Page 88: Wireless > Status Page

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Wireless > STATUS Page You can use this display-only page to: • View the wireless interface status • Help perform Troubleshooting for wireless network problems Wireless > STATUS Page Fields Regulatory Domain Indicates the country the SBG940 is manufactured for.

  • Page 89: Wireless > Network Page

    Page, all clients on the WLAN must have the same ESSID (network name) as the SBG940. It can be any alphanumeric, case-sensitive string up to 32 characters. The default is “Motorola.” We strongly recommend not using the default. Never provide the ESSID to anyone who is not authorized to use your WLAN.
  • Page 90 Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Wireless > NETWORK page fields (continued) Field Description Operating Mode Sets how the SBG940 communicates with wireless clients (stations): • 11b/11g Standard — Enables all IEEE 802.11b and IEEE 802.11g clients to work with the SBG940.

  • Page 91: Wireless > Security - Basic Page

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Wireless > SECURITY — basic Page Use this page to configure how your SBG940 encrypts wireless transmissions. For information about using this page, see “Encrypting Wireless LAN Transmissions”.

  • Page 92: Wireless > Security - Advanced Page

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Wireless > SECURITY — advanced Page Use this page to configure advanced wireless security settings. Wireless > Security — ADVANCED page fields Field or Button Description Disable ESSID Broadcast If selected, only wireless clients (stations) having the same Network Name (ESSID) as the SBG940 can communicate with the SBG940.

  • Page 93: Wireless > Statistics Page

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Wireless > Security — ADVANCED page fields (continued) Field or Button Description ADD NEW STATION New Station Type the MAC address of the wireless client to add to the MAC access control list. Use the format xx:xx:xx:xx:xx:xx.
  • Page 94 Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Wireless > STATISTICS page fields (continued) Field or Button Description Multiple Retry Count The number of successfully transmitted MSDUs after more than one retransmission. Frame Duplicate The number of frames received where the Sequence Control field indicated the frame was a Count duplicate.

  • Page 95: Troubleshooting

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Troubleshooting If the solutions listed here do not solve your problem, contact your cable provider. Before calling your cable provider, try pressing the reset button on the rear panel. Resetting the SBG940 may take 5 to 30 minutes. Your service provider may ask for the status of the lights as described in “Front-Panel Lights and Error Conditions”.

  • Page 96: Front-Panel Lights And Error Conditions

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Front-Panel Lights and Error Conditions Light Turns Off During Startup If Turns Off During Normal Operation If The downstream receive channel cannot be acquired The downstream channel is lost The upstream send channel cannot be acquired The upstream channel is lost IP registration is unsuccessful...

  • Page 97: Setting Up A Usb Driver

    Removing the USB Driver from Windows 98 Second Edition or Windows Me • Removing the USB Driver from Windows 2000 • Removing the USB Driver from Windows XP Then perform “Running the Motorola USB Driver Removal Utility” on page 107. SBG940 User Guide...

  • Page 98: Setting Up A Usb Driver In Windows 98 Second Edition

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Setting Up a USB Driver in Windows 98 Second Edition Insert the SBG940 Installation CD-ROM in the CD-ROM drive. This CD contains the USB drivers and must be inserted and read by the PC before you connect the SBG940 to the PC.
  • Page 99 Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Click Next and the following window is displayed: Be sure “CD-ROM drive” is the only box selected. Click Next. The message “Please wait while Windows searches for a new driver for this device” is displayed. If the computer successfully locates the driver, you can skip to step 9.
  • Page 100 Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Click Next. The following window is displayed: Select The updated driver... and click Next. If the following window is not displayed, verify that the SBG940 Installation CD-ROM is properly inserted in the CD-ROM drive. If you still cannot find the correct driver file, click Cancel to cancel the installation and perform the procedure for “Removing the USB Driver from Windows 98 Second Edition or Windows...
  • Page 101 Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB After all the necessary files are loaded, the following window is displayed to confirm a successful installation: Click Finish. The Systems Settings Change window is displayed: Click Yes to restart the computer. When you finish setting up the USB driver, you can continue with “Configuring TCP/IP”.

  • Page 102: Setting Up A Usb Driver In Windows 2000

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Setting Up a USB Driver in Windows 2000 Insert the SBG940 Installation CD-ROM in the CD-ROM drive. This CD contains the USB drivers and must be inserted and read by the PC before you connect the SBG940 to the PC. Connect the USB cable as shown in Connection.
  • Page 103 Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Click Next. The following window is displayed: Be sure “CD-ROM drives” is the only box selected. Click Next. The following window is displayed: Click Next. If the Insert Disk window is displayed, be sure the SBG940 Installation CD-ROM is in the CD-ROM drive and follow steps 7 to 12.
  • Page 104 Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB On the Insert Disk window, click OK. The Files Needed window is displayed: If necessary, select the CD-ROM drive in the Copy files from list. Click Browse. Locate the NetMotCM.sys file in the CD-ROM root directory.

  • Page 105: Setting Up A Usb Driver In Windows Me

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Setting Up a USB Driver in Windows Me Insert the SBG940 Installation CD-ROM in the CD-ROM drive. This CD contains the USB drivers and must be inserted and read by the PC before you connect the SBG940 to the PC. Connect the USB cable as shown in Connection.

  • Page 106: Setting Up A Usb Driver In Windows Xp

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Setting Up a USB Driver in Windows XP Insert the SBG940 Installation CD-ROM in the CD-ROM drive. This CD contains the USB drivers and must be inserted and read by the PC before you connect the SBG940 to the PC. Connect the USB cable as shown in Connection.

  • Page 107: Removing The Usb Driver From Windows 98 Second Edition Or Windows Me

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Removing the USB Driver from Windows 98 Second Edition or Windows Me On the Windows Desktop, right-click one of: • In Windows 98 Second Edition, the Network Neighborhood icon •...
  • Page 108 Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Click the Motorola SURFboard SBG940 USB Gateway and click Remove. The Network window no longer displays Motorola SURFboard SBG940 USB Gateway in the list: Click OK. The System Settings Change window is displayed: Disconnect the USB cable from the PC or SBG940.

  • Page 109: Removing The Usb Driver From Windows 2000

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Removing the USB Driver from Windows 2000 On the Windows desktop, click Start. Click Settings. Click Control Panel to display the Control Panel window: Double-click System to display the System Properties window. Click the Hardware tab: SBG940 User Guide...
  • Page 110 Although your SBG model number may be different than in the images in this guide, the procedure is the same. Double-click Network Adapters. Click the Motorola SURFboard SBG940 USB Gateway. The Uninstall icon displays on the window near the top. Click the Uninstall icon. The following window is displayed: Click OK.

  • Page 111: Removing The Usb Driver From Windows Xp

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Removing the USB Driver from Windows XP On the Windows desktop, click Start to display the Start window: Click Control Panel to display the Control Panel window. The display varies, depending on the Windows XP view options: SBG940 User Guide...
  • Page 112 Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB If a Category view similar to the image under step 2 is displayed, click Performance and Maintenance to display the Performance and Maintenance window. Otherwise, skip to step 5. Click System to display the System Properties window.
  • Page 113 Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB If a Classic view similar to the following is displayed, double-click System to display the System Properties window: Click the Hardware tab to display the Hardware page: SBG940 User Guide...
  • Page 114 Although your SBG model number may be different than in the images in this guide, the procedure is the same. Double-click Network adapters. Click the Motorola SURFboard SBG940 USB Gateway. The Uninstall icon displays on the window near the top. Click the Uninstall icon.

  • Page 115: Running The Motorola Usb Driver Removal Utility

    Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Running the Motorola USB Driver Removal Utility Before running the Motorola USB Driver Removal Utility, you must run the Windows Device Manager by performing one of: • “Removing the USB Driver from Windows 98 Second Edition or Windows Me”...
  • Page 116 The following window displays when the USB driver has been successfully removed: Click Exit to exit the Motorola USB Driver Removal Utility. You can click Details to display informational messages about the files that were found and deleted similar to the ones shown below.

  • Page 117: Contact Us

    Regulatory, Safety, Software License, and Warranty Information card provided with the SBG940. For answers to typical questions, see “Frequently-Asked Questions”. For more information about Motorola consumer cable products, education, and support, visit http://broadband.motorola.com/consumers. SBG940 User Guide...

  • Page 118: Frequently-Asked Questions

    “Setting Up Your Wireless LAN”. Why is there no Standby button? As a security measure, current Motorola cable modems provide a Standby button to temporarily suspend the Internet connection. Because enabling the SBG940 firewall provides high security levels while connected, the Standby button is not required.
  • Page 119 Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Do I need to change my Internet service provider (ISP)? Currently, most Internet service providers do not provide cable Internet access. Contact your cable company for your specific information. Do I need to subscribe to cable TV to get cable Internet access? No, but you will need to subscribe to cable Internet service.

  • Page 120: Specifications

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Specifications Wireless Standards compliance IEEE 802.11g, IEEE 802.11b DSSS, IEEE 802.11g OFDM RF frequency range 2.412 to 2.462 GHz for North America 2.412 to 2.835 GHz for Japan Data rate 1 Mbps DBPSK 2 Mbps DQPSK...
  • Page 121 Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Downstream Modulation 64 or 256 QAM 38 Mbps Maximum data rate Frequency range 88 to 860 MHz (30 kHz minimum step size) Bandwidth 6 MHz Maximum symbol rate 5.069 Msym/s (64 QAM) 5.361 Msym/s (256 QAM) Operating level range -15 to +15 dBmV...

  • Page 122: Glossary

    Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Glossary This glossary defines terms and lists acronyms used with the SBG940. access point A device that provides WLAN connectivity to wireless clients (stations). The SBG940 acts as a wireless access point.
  • Page 123 Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB bandwidth The transmission capacity of a medium in terms of a range of frequencies. Greater bandwidth indicates the ability to transmit more data over a given period of time. Baseline An optional feature that encrypts data between the CMTS and the cable modem or gateway.
  • Page 124 Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB CableHome A project of CableLabs and technology suppliers to develop interface specifications for extending high-quality cable-based services to home network devices. It addresses issues such as device interoperability, QoS, and network management.
  • Page 125 CableLabs Certified Cable Modems. Euro-DOCSIS is DOCSIS adapted for use in Europe. domain name A unique name, such as motorola.com, that maps to an IP address. Domain names are typically much easier to remember than are IP addresses.
  • Page 126 Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB dotted-decimal Method of representing an IP address or subnet mask using four decimal numbers called octets. Each format octet represents eight bits. In a class C IP address, the octets are “network.network.network.host.” The first three octets together represent the network address and the final octet is the host address.
  • Page 127 Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB frame check sequence F-type A type of connector used to connect coaxial cable to equipment such as the SBG940. connector firewall A security software system on the SBG940 that enforces an access control policy between the Internet and the SBG940 LAN.
  • Page 128 Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB H.323 A suite of protocols created by the ITU for interactive video-conferencing, data sharing, and audio applications such as VoIP. half-duplex Network where only one device at a time can transmit data. See also full-duplex. headend A location that receives TV programming, radio programming, data, and telephone calls that it modulates onto the HFC network.
  • Page 129 Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB IANA The Internet Numbering Address Authority (IANA) is an organization under the Internet Architecture Board (IAB) of the Internet Society that oversees IP address allocation. It is under a contract from the U.S.
  • Page 130 Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB IP address A unique 32-bit value that identifies each host on a TCP/IP network. TCP/IP networks route messages based on the destination IP address. An IP address has two parts: •...
  • Page 131 Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Layer 2 Forwarding is an OSI layer 2 protocol that establishes a secure tunnel across the Internet to create a virtual PPP connection between the user and the enterprise network. L2F is the most established and stable layer 2 tunneling protocol.
  • Page 132 Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB MAC address The Media Access Control address is a unique, 48-bit value permanently saved in ROM at the factory to identify each Ethernet network device. It is expressed as a sequence of 12 hexadecimal digits printed on a Label on the Bottom of the SBG940.
  • Page 133 Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB network access server Network Address Translation is an Internet standard for a LAN to use one set of IP addresses for internal traffic and a second set of IP addresses for external traffic. NAT provides some security because the IP addresses of SBG940 LAN computers are invisible on the Internet.
  • Page 134 Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB packet The unit of data that is routed between the sender and destination on the Internet or other packet-switched network. When data such as an e-mail message or other file is sent over the Internet, IP on the sender divides the data into uniquely-numbered packets.
  • Page 135 Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB port mirroring A feature that enables one port (source) on the SBG940 to be copied to another port (destination) to be studied. The destination mirrors the transmitted (from) or received (to) data on the source port to enable the person managing the network to monitor activity.
  • Page 136 Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB Remote Access Server registration How a cable modem makes itself known to the CMTS. The cable modem configuration file and authorization are verified and the CoS is negotiated. return loss A measurement of the quality of the match of the device to the cable system.
  • Page 137 Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB server In a client/server architecture, a dedicated computer that supplies files or services such as file transfer, remote login, or printing to clients. scope The set of IP addresses that a DHCP server can lease to clients. service provider A company providing cable data services to subscribers.
  • Page 138 Overview Installation Troubleshooting Contact Specifications Glossary License Configuration: Basic Gateway TCP/IP Wireless USB switch On an Ethernet network, a switch filters frames based on the MAC address, in a manner similar to a bridge. A switch is more advanced because it can connect more than two segments. symbol rate Also known as baud rate, is a measure of the number of times per second a signal in a communications channel varies, or makes a transition between states (states being frequencies,...
  • Page 139 Wireless fidelity (pronounced y-phi) brand name applied to products supporting IEEE 802.11b. Wireless Cable The Motorola SURFboard Wireless Cable Modem Gateway is a single device that combines a cable Modem modem, router, Ethernet switch, wireless access point, and DHCP server for SOHO or SME use.

  • Page 140: Software License

    The Software includes associated media, any printed materials, and any “on-line” or electronic documentation, as well as any updates, revisions, bug fixes, or drives obtained by you from Motorola or your service provider. Software provided by third parties may be subject to separate end-user license agreements from the manufacturers of such Software.
  • Page 141 Visit our website at: www.motorola.com 521987-001 7/05 MGBI...

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