Wireless-G Cable Gateway Use this guide to install the following product: WCG200 User Guide
COPYRIGHT & TRADEMARKS Specifications are subject to change without notice. Linksys is a registered trademark or trademark of Cisco Systems, Inc. and/or its affiliates in the U.S. and certain other countries. Copyright © 2003 Cisco Systems, Inc. All rights reserved. Other brands and product names are trademarks or registered trademarks of their respective holders.
Wireless-G Cable Gateway Table of Contents Chapter 1: Introduction The Linksys Cable Gateway Features An Introduction to LANs and WANs IP Addresses Network Setup Overview 1 1 1 2 2 4 Chapter 2: Getting to Know the Cable Gateway The Cable Gateway’s Back Panel Ports The Reset Button Rebooting the Cable Gateway The Cable Gateway’s Front Panel LEDs The USB Icon USB Cabling 5 5 6 6 6 8 8 Chapter 3: Connecting the Cable Gateway Overview Ethernet Port Connection USB Port Connection Installing the USB Driver f
Wireless-G Cable Gateway Chapter 1: Introduction Appendix A: Troubleshooting Common Problems and Solutions Frequently Asked Questions 54 54 55 Appendix B: Configuring Wireless Security in Windows XP 59 Appendix C: Installing the TCP/IP Protocol 65 Appendix D: Finding the MAC Address and IP Address for Your Ethernet Adapter 67 Appendix E: Glossary 71 Appendix F: Specifications Environmental 82 83 Appendix G: Warranty Information 84 Appendix H: Contact Information 85 The Linksys Cable Gateway
Wireless-G Cable Gateway An Introduction to LANs and WANs Simply put, a router is a network device that connects two networks together. The Cable Gateway has a built-in router that connects your Local Area Network (LAN), which is the group of PCs in your home or office, to the Wide Area Network (WAN), which is the Internet. The Cable Gateway processes and regulates the data that travels between these two networks.
Wireless-G Cable Gateway Network Setup Overview This user guide covers the basic steps for setting up a network with the Cable Gateway. After going through the Chapter 2: Getting to Know the Cable Gateway, proceed through the following chapters: • Chapter 3: Connecting the Cable Gateway This chapter instructs you on how to connect the coaxial Cable line to the Cable Gateway and connect the PC(s) to the Cable Gateway.
Wireless-G Cable Gateway The Reset Button Pressing the Reset Button and holding it in for a few seconds will clear all of the Cable Gateway’s data and restore the factory defaults. This should be done only if you are experiencing networking problems and have exhausted all of the other troubleshooting options. By resetting the Cable Gateway, you run the risk of creating conflicts between your PCs’ actual IP Addresses and what the Cable Gateway thinks the IP Addresses of the PCs should be.
Wireless-G Cable Gateway The USB Icon The USB icon, shown in Figure 2-3, marks a USB port on a PC or device. Chapter 3: Connecting the Cable Gateway Overview Figure 2-3 You will connect the Cable Gateway to your Cable service’s coaxial cable line and to the computers in your home or business. With the Cable Gateway, you can use a standard Ethernet connection or connect via USB. For Ethernet connection continue with the Ethernet Cable Connection section.
Wireless-G Cable Gateway 3. Connect the other end of the cable to one of the LAN ports on the back of the Cable Gateway, as shown in Figure 3-3. USB Port Connection First, make sure that all the devices that you’ll be working with are powered down, including your PCs and the Cable Gateway. Figure 3-3 Make sure there is an Ethernet cable connected from the Cable Gateway to every PC that you want on your local network.
Wireless-G Cable Gateway Installing the USB Driver for Windows 98 3. Select CD-ROM drive as the only location where Windows will search for the driver software and click the Next button. 1. When the Add New Hardware Wizard window appears, insert the Setup CD into your CD-ROM drive and click Next. Figure 3-3 Figure 3-1 2. Select Search for the best driver for your device and click the Next button. Figure 3-2 12 4.
Wireless-G Cable Gateway 5. Windows will begin installing the driver for the modem. At this point, the installation may require files from your Windows 98 CD-ROM. If prompted, insert your Windows 98 CD-ROM into your CD-ROM drive and enter d:\win98 in the box that appears (where “d” is the letter of your CD-ROM drive). If you were not supplied with a Windows 98 CD-ROM, your Windows files may have been placed on your hard drive by your computer manufacturer.
Wireless-G Cable Gateway many manufacturers use c:\windows\options\install as the path. Try entering this path into the box. If no files are found, check your computer’s documentation or contact your computer manufacturer for more information. Installing the USB Driver for Windows 2000 1. Start up your PC. Windows will notify you that it has detected new hardware. Insert the Setup CD into the CD-ROM drive. 4. When Windows finishes installing the driver, click Finish. Figure 3-10 2.
Wireless-G Cable Gateway 3. Select Search for a suitable driver for my device and click the Next button. 5. Windows will notify you that it has located the appropriate driver and is ready to install it. Click the Next button. Figure 3-14 Figure 3-12 4. Windows will now search for the driver software. Select only CD-ROM drives and click the Next button. 6. When Windows has completed installing the driver, click Finish. Figure 3-15 Figure 3-13 18 The Windows 2000 driver installation is complete.
Wireless-G Cable Gateway Installing the USB Driver for Windows XP 3. Windows will now search for the driver software. Click the Next button. 1. Start up your PC. Windows will notify you that it has detected new hardware. Insert the Setup CD into the CD-ROM drive. Figure 3-16 2. When the Found New Hardware Wizard screen appears to confirm that the USB Modem has been identified by your PC, make sure that the Setup CD is in the CD-ROM drive and click Next. Figure 3-18 4.
Wireless-G Cable Gateway Chapter 4: Configuring the PCs Overview The instructions in this chapter will help you configure each of your computers to be able to communicate with the Cable Gateway. To do this, you need to configure your PC’s network settings to obtain an IP (or TCP/IP) address automatically (called DHCP). Computers use IP addresses to communicate with each other across a local network or the Internet.
Wireless-G Cable Gateway 4. Now click the Gateway tab to ensure that the Installed Gateway field is left blank. Click the OK button. 4. Select Internet Protocol (TCP/IP), as shown in Figure 4-4, and click the Properties button. 5. Click the OK button again. Windows may ask you for the original Windows installation disk or additional files. Supply them by pointing to the correct file location, e.g., D:\win98, D:\win9x, c:\windows\options\cabs, etc. (if “D” is the letter of your CD-ROM drive). 6.
Wireless-G Cable Gateway Windows XP 4. Select Internet Protocol (TCP/IP), and click the Properties button. The following instructions assume you are running Windows XP with the default interface. If you are using the Classic interface (where the icons and menus look like previous Windows versions), please follow the instructions for Windows 2000. 1. Open the Network screen. To do this, click the Start button and select the Control Panel.
Wireless-G Cable Gateway Chapter 5: Using the Cable Gateway’s Web-based Utility Accessing the Web-Based Utility The Setup The Setup Tab The first screen that appears is the Setup tab. This tab allows you to change the Router's general settings. Change these settings as described here and click the Save Settings button to save your changes or Cancel Changes to cancel your changes. For your convenience, an administrative utility has been programmed into the Cable Gateway.
Wireless-G Cable Gateway Primary DNS. (Required) and Secondary DNS (Optional). Your ISP will provide you with at least one DNS (Domain Name System) Server IP Address. The Wireless Tab Optional Settings (required by some ISPs) Host Name and Domain Name. These fields allow you to supply a host and domain name for the Router. Some ISPs require these names as identification. You may have to check with your ISP to see if your broadband Internet service has been configured with a host and domain name.
Wireless-G Cable Gateway Wireless Security 64-Bit Encryption Figure 5-5 Wireless SSID Broadcast. When wireless clients survey the local area for wireless networks to associate with, they will detect the SSID broadcast by the Router. To broadcast the Router's SSID, keep the default setting, Enabled. If you do not want to broadcast the Router's SSID, then select Disabled. Wireless Encryption Level.
Wireless-G Cable Gateway 128-Bit Encryption Wireless Network Access Figure 5-7 Figure 5-8 Default Key. Select which WEP key (1-4) will be used when the Router sends data. Make sure the receiving device is using the same key. Passphrase for Keys. Instead of manually entering WEP keys, you can enter a Passphrase. This Passphrase is used to generate one or more WEP keys. It is case-sensitive and should not be longer than 16 alphanumeric characters.
Wireless-G Cable Gateway Advanced Wireless Settings Advanced Wireless On this screen you can access the Advanced Wireless features of Basic Data Rates, Control Tx Rates, Beacon Interval, DTIM Interval, Fragmentation Threshold, RTS Threshold, and Authentication Type. Note - these adveance settings typically do not need to be modified. the next DTIM with a DTIM Interval value. Its clients hear the beacons and awaken to receive the broadcast and multicast messages. Fragmentation Threshold.
Wireless-G Cable Gateway The Security Tabs Firewall When you click the Security tab, you will see the Firewall screen (see Figure 5-11). This screen contains Filters and Block WAN Requests. Filters block specific internal users from accessing the Internet and block anonymous Internet requests and/or multicasting. Filter Multicast. Multicasting allows for multiple transmissions to specific recipients at the same time.
Wireless-G Cable Gateway The Access Restrictions Tabs Website Blocking The Access Restrictions tabs, shown in Figure 5-13, allow you allows you to block or allow specific kinds of Internet usage. Keyword Blocking. To block a keyword, click Enable. Enter a keyword in the New Keyword field, then click Add. To remove a keyword from being blocked, select the keyword from the Keyword List, then click Remove. Website Blocking. To block a website, click Enable. Then click Deny Websites in List.
Wireless-G Cable Gateway Filter Internet Traffic This screen is used to filter Internet traffic by IP Address Range or by Port Range. Figure 5-15 Select the MAC Address from the list, click the Select button , and click the Add button. Click the Refresh button if you want to refresh the screen. Click the Close button to return to the previous screen. When you return to the Timed Access screen, the MAC Address will appear in the fields.
Wireless-G Cable Gateway The Applications & Gaming Tabs Figure 5-17 When you click the Applications & Gaming tab, you will see the Port Range Forwarding screen (see Figure 5-17). Port Range Forwarding sets up public services on your network, such as web servers, ftp servers, e-mail servers, or other specialized Internet applications. (Specialized Internet applications are any applications that use Internet access to perform functions such as videoconferencing or online gaming.
Wireless-G Cable Gateway Port Triggering DMZ Figure 5-20 The DMZ screen allows one local user to be exposed to the Internet for use of a special-purpose service such as Internet gaming and videoconferencing. Whereas Port Range Forwarding can only forward a maximum of 10 ranges of ports, DMZ hosting forwards all the ports for one PC at the same time. Figure 5-19 The Port Triggering screen allows the Router to watch outgoing data for specific port numbers.
Wireless-G Cable Gateway The Administration Tabs Diagnostics The Administration tabs contain Security, Diagnostics, and Advanced Administration screens. This screen allows you to run a Ping Test to determine if an IP Address is online. Figure 5-22 Figure 5-21 Security Security. To change your password, enter the Gateway Password in the (Enter New Password) field, then re-enter it in the (Re-enter To Confirm) field. Reporting E-mail Alerts. Click Enable to allow alerts. Your Email Address.
Wireless-G Cable Gateway Advanced The Status Tabs The Advanced screen allows you to restore the Router’s configuration to its factory default settings, and to enable routing and NAT. When you click the Status tab, you will see the Gateway screen (see Figure 630). It displays information about the Gateway and its settings.
Wireless-G Cable Gateway Status System Up Time. This indicates how long the Gateway has been active. Network Access. Thsi indicates whether access to the network has been achieved. WAN IP Address. This indicates the IP Address that is assigned to the cablemodem. WAN DHCP IP Address Lease. This indicates how long the lease is. WAN DHCP IP Expires. This indicates when the lease expires. Startup Procedure.
Wireless-G Cable Gateway Appendix A: Troubleshooting Common Problems and Solutions This section provides possible solutions to problems regarding the Cable Gateway’s installation and operation. If your situation is described here, the problem should be solved by applying the corresponding solution. If you can’t find an answer here, check the Linksys website at www.linksys.com. 1. The Cable Gateway is not working. • Verify that the Power cord and other network cables are plugged in.
Wireless-G Cable Gateway What is Network Address Translation and what is it used for? Network Address Translation (NAT) translates multiple IP addresses on the private LAN to one public address that is sent out to the Internet. This adds a level of security since the address of a PC connected to the private LAN is never transmitted on the Internet. Furthermore, NAT allows the Cable Gateway to be used with low cost Internet accounts, when only one TCP/IP address is provided by the ISP.
Wireless-G Cable Gateway Does the Cable Gateway pass PPTP packets or actively route PPTP sessions? The Cable Gateway allows PPTP packets to pass through. Is the Cable Gateway cross-platform compatible? Any platform that supports Ethernet and TCP/IP is compatible with the Cable Gateway. How many ports can be simultaneously forwarded? Theoretically, the Cable Gateway can establish 520 sessions at the same time, but you can only forward 10 ranges of ports.
Wireless-G Cable Gateway The following steps will help you enable WEP and enter the encryption key manually for your wireless PC cards, in order to enable your Windows XP system to communicate with the Gateway wirelessly. 2. In the “Control Panel” window, click the Network and Internet Connections icon. These steps assume that you are running Windows XP in the default mode. Be sure you have the WEP Key generated in the Gateway, shown in the Key 1 field. 1.
Wireless-G Cable Gateway If a “Connect to Wireless Network” window appears, in the Available Networks section, click the desired wireless network, specified by the Gateway’s SSID. Then, double-click the Wireless Network Connection icon. Figure B-4 5. When the “Wireless Network Connection Status” window appears, click the Properties button. 6. When the “Wireless Network Connection Properties” window appears, click the Wireless Networks Tab. Figure B-6 7.
Wireless-G Cable Gateway 8. The “Wireless Network Properties” window will appear. Click the check box for the Data encryption (WEP enabled) option. Remove the check from the Network Authentication (Shared mode) and The key is provided for me automatically fields. Appendix C: Installing the TCP/IP Protocol In the "Network key" field, enter the exact Key (all 10 or 26 digits, depending on the level of encryption) generated by the Gateway.
Wireless-G Cable Gateway 6. Find and double-click TCP/IP in the list to the right (see Figure C-2). Appendix D: Finding the MAC Address and IP Address for Your Ethernet Adapter This section describes how to find the MAC address for your Ethernet adapter to do either MAC Filtering for the Gateway and ISP. You can also find the IP address of your computer’s Ethernet adapter. The IP address is used for filtering.
Wireless-G Cable Gateway 3. Write down the Adapter Address as shown on your computer screen (see Figure D-3). This is the MAC address for your Ethernet adapter and will be shown as a series of numbers and letters. 2. In the command prompt, enter ipconfig /all. Then press the Enter key. The MAC address/Adapter Address is what you will use for MAC Filtering. Figure D-3 The example in Figure D-3 shows the IP address of your Ethernet adapter as 192.168.1.100. Your computer may show something different.
Wireless-G Cable Gateway When entering the information using the Router’s web-based utility, you will type the 12-digit MAC address in this format, XXXXXXXXXXXX without the hyphens for MAC Filtering. Appendix E: Glossary 10BaseT - An Ethernet standard that uses twisted wire pairs. 100BaseTX - IEEE physical layer specification for 100 Mbps over two pairs of Category 5 UTP or STP wire. 802.11b - One of the IEEE standards for wireless networking hardware.
Wireless-G Cable Gateway Broadband - A data-transmission scheme in which multiple signals share the bandwidth of a medium. This allows the transmission of voice, data and video signals over a single medium. Cable television uses broadband techniques to deliver dozens of channels over one cable. Browser - A browser is an application program that provides a way to look at and interact with all the information on the World Wide Web or PC.
Wireless-G Cable Gateway DTIM (Delivery Traffic Indication Message) - A DTIM field is a countdown field informing clients of the next window for listening to broadcast and multicast messages. When the AP has buffered broadcast or multicast messages for associated clients, it sends the next DTIM with a DTIM Interval value. AP Clients hear the beacons and awaken to receive the broadcast and multicast messages.
Wireless-G Cable Gateway the development and application of electrotechnology and allied sciences for the benefit of humanity, the advancement of the profession, and the well-being of our members." The IEEE fosters the development of standards that often become national and international standards. The organization publishes a number of journals, has many local chapters, and several large societies in special areas, such as the IEEE Computer Society.
Wireless-G Cable Gateway Port - A pathway into and out of the computer or a network device such as a switch or router. For example, the serial and parallel ports on a personal computer are external sockets for plugging in communications lines, modems and printers. PPTP (Point-to-Point Tunneling Protocol) - A protocol which allows the Point to Point Protocol (PPP) to be tunneled through an IP network.
Wireless-G Cable Gateway TCP/IP (Transmission Control Protocol/Internet Protocol) - The basic communication language or set of protocols for communications over a network (developed specifically for the Internet). TCP/IP defines a suite or group of protocols and not only TCP and IP. Throughput - The amount of data moved successfully from one place to another in a given time period.
Wireless-G Cable Gateway Appendix F: Specifications 82 Model Number WCG200 Standards DOCSIS 1.0, DOCSIS 1.1, DOCSIS 2.0, IEEE 802.11g, IEEE 802.11b. Ports 4 RJ-45 10/100, 1 USB, 1 Female Coax F-Connector Buttons Power ON/OFF switch, Reset Environmental Dimensions: 7.32" x 2.48" x 6.08" (186 mm x 63 mm x 154.5 mm) Unit Weight: 1.5 lb. (0.68 kg) Power: 12VDC, 1A Certifications: DOCSIS 1.1, DOCSIS 2.0, FCC Part 15B Class B, UL 1950, EN60950, CE EN 55022 Class B, VCCI, IC-03 Operating Temp.
Wireless-G Cable Gateway Appendix H: Contact Information Appendix G: Warranty Information For help with the installation or operation of the Cable Gateway, contact Linksys Technical Support at one of the phone numbers or Internet addresses below. LIMITED WARRANTY Linksys warrants to You that, for a period of three years (the “Warranty Period”), your Linksys Product will be substantially free of defects in materials and workmanship under normal use.
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