Linksys WRT54G3G-VN manual Planning Your Wireless Network, Network Topology, Network Layout

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Wireless-G Router for Mobile Broadband

Chapter 2: Planning Your Wireless Network

Network Topology

A wireless local area network (WLAN) is exactly like a regular local area network (LAN), except that each computer in the WLAN uses a wireless device to connect to the network. Computers in a WLAN share the same frequency channel and SSID, which is an identification name shared by the wireless devices belonging to the same wireless network.

ssid (service set identifier): your wireless network’s name.

Ad-Hoc versus Infrastructure Mode

Unlike wired networks, wireless networks have two different modes in which they may be set up: infrastructure and ad-hoc. An infrastructure configuration is a WLAN and wired LAN communicating to each other through an access point. An ad-hoc configuration is wireless-equipped computers communicating directly with each other. Choosing between these two modes depends on whether or not the wireless network needs to share data or peripherals with a wired network or not.

If the computers on the wireless network need to be accessible by a wired network or need to share a peripheral, such as a printer, with the wired network computers, the wireless network should be set up in Infrastructure mode. The basis of Infrastructure mode centers around a wireless router or an access point, such as the Wireless-G Router for Mobile Broadband, which serves as the main point of communications in a wireless network. The Router transmits data to PCs equipped with wireless network adapters, which can roam within a certain radial range of the Router. You can arrange the Router and multiple access points to work in succession to extend the roaming range, and you can set up your wireless network to communicate with your Ethernet hardware as well.

If the wireless network is relatively small and needs to share resources only with the other computers on the wireless network, then the Ad-Hoc mode can be used. Ad-Hoc mode allows computers equipped with wireless transmitters and receivers to communicate directly with each other, eliminating the need for a wireless router or access point. The drawback of this mode is that in Ad-Hoc mode, wireless-equipped computers are not able to communicate with computers on a wired network. And, of course, communication between the wireless- equipped computers is limited by the distance and interference directly between them.

Network Layout

The Wireless-G Router for Mobile Broadband has been specifically designed for use with both your 802.11b and 802.11g products. It is compatible with all 802.11g and 802.11b adapters, such as the notebook adapters for your

infrastructure: a wireless network that is bridged to a wired network via an access point.

ad-hoc: a group of wireless devices communicating directly to each other (peer-to- peer) without the use of an access point.

Chapter 2: Planning Your Wireless Network

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Network Topology

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Contents 802 GHz .11g Wireless- G Word definition How to Use This User GuideCopyright and Trademarks Table of Contents Appendix C Upgrading Firmware Appendix D Windows Help Appendix a TroubleshootingAppendix B Wireless Security Common Problems and Solutions Frequently Asked QuestionsRouter’s Ports List of Figures17 Setup Tab Advanced Routing Router 51 Status Tab Wireless Welcome IntroductionWhat’s in this User Guide? Wireless-G Router for Mobile Broadband Network Topology Planning Your Wireless NetworkAd-Hoc versus Infrastructure Mode Ssid service set identifier your wireless network’s namePlanning Your Wireless Network Network Layout Router’s Ports Getting to Know the Wireless-G Router for Mobile BroadbandRouter’s LEDs are located on the Router’s other side panel Router’s LEDsRouter’s Data Card Slot Overview Connecting the Wireless-G Router for Mobile BroadbandConnect Your Computer Hardware Installation for Connection to Your Broadband Modem Connect the Power Diagram for Connection to Another Router Hardware Installation for Connection to Another RouterConnect Your Computer Stand Option Placement Options11 Measurement between Wall-Mount Slots Wall-Mount OptionPassword Screen Configuring the Wireless-G Router for Mobile BroadbandStatus Setup Tab Basic SetupMobile Network Setup Internet SetupStatic IP Connection Type L2TP Connection Type Optional SettingsRouter IP Network SetupNetwork Address Server Settings Dhcp 11 Time Setting Time SettingData Card Status Setup Tab Mobile NetworkMobile Network Connection Mode Mobile Network StatusTZO.com Setup Tab DdnsDynDNS.org MAC Clone Setup Tab MAC Address CloneStatic Routing Setup Tab Advanced RoutingAdvanced Routing Dynamic RoutingWireless Network Wireless Tab Basic Wireless SettingsWireless Security Wireless Tab Wireless SecurityAES 25 Wireless Tab Wireless Security Radius Wireless MAC Filter Wireless Tab Wireless MAC FilterAdvanced Wireless Wireless Tab Advanced Wireless SettingsWireless-G Router for Mobile Broadband Block WAN Requests Security Tab FirewallFirewall Security Tab VPN Passthrough Access Restrictions Tab Internet AccessInternet Access To create an Internet Access policy33 Internet Policy Summary Port Range Forward Applications and Gaming Tab Port Range ForwardForwarded Range Applications & Gaming Tab Port TriggeringPort Triggering Triggered RangeDevice Priority Wired QoSApplications and Gaming Tab DMZ Applications and Gaming Tab QoSApplication Priority Wireless QoSEthernet Port Priority UPnP Administration Tab ManagementRouter Password Log Administration Tab LogTraceroute Test Administration Tab DiagnosticsPing Test Administration Tab Config Management Administration Tab Factory DefaultsAdministration Tab Firmware Upgrade 48 Status Tab Mobile Network Status Tab Mobile NetworkInternet Status Tab RouterRouter Information Local Network Status Tab Local NetworkWireless Status Tab WirelessNeed to set a static IP address on a PC Appendix a TroubleshootingCommon Problems and Solutions Wireless-G Router for Mobile Broadband Wireless-G Router for Mobile Broadband TCP Application Start and End Protocol IP Address EnabledCan’t get the Internet game, server, or application to work My DSL service’s PPPoE is always disconnecting To start over, I need to set the Router to factory defaultNeed to upgrade the firmware Power LED keeps flashing Does the Router support IPX or AppleTalk? Frequently Asked QuestionsWhere is the Router installed on the network? Is IPSec Pass-Through supported by the Router?How can I avoid corrupted FTP downloads? If all else fails in the installation, what can I do?How will I be notified of new Router firmware upgrades? Is the Router cross-platform compatible? What is DMZ Hosting?What are the advanced features of the Router? Will the Router function in a Macintosh environment?What Ieee 802.11b features are supported? What is the Ieee 802.11g standard?What is the Ieee 802.11b standard? What Ieee 802.11g features are supported?What is Spread Spectrum? What is infrastructure mode?What is roaming? What is ISM band?How do I reset the Router? What is DSSS? What is FHSS? And what are their differences?What is WEP? What is a MAC Address?How do I connect to the mobile network? What do the indicator LEDs signify on the Router?Whom should I call if there is a question or problem? How do I know which mobile network I am using?Security Threats Facing Wireless Networks Appendix B Wireless SecuritySecurity Precautions Appendix B Wireless Security Wireless-G Router for Mobile Broadband Appendix C Upgrading Firmware Figure C-1 Upgrade FirmwareNetwork Neighborhood/My Network Places Appendix D Windows HelpShared Resources For the Router’s Web-based Utility Windows 2000 or XP InstructionsFigure E-4 MAC Address Filter List Appendix F Glossary Wireless-G Router for Mobile Broadband Wireless-G Router for Mobile Broadband Wireless-G Router for Mobile Broadband Wireless-G Router for Mobile Broadband Appendix G Specifications FCC, IC-03, CE, Wi-Fi 802.11b, 802.11g, WPA Appendix H Warranty Information Appendix I Regulatory Information Wireless-G Router for Mobile Broadband Wireless-G Router for Mobile Broadband Wireless-G Router for Mobile Broadband Wireless-G Router for Mobile Broadband Wireless-G Router for Mobile Broadband Wireless-G Router for Mobile Broadband
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