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3Com WL-540A, WL-540B, 3CRWE754G72-A, 3CRWE754G72-B manual Glossary

Models: 3CRWE754G72-A, 3CRWE754G72-B WL-540B 3CRWE754G72-A WL-540A

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common speed. The order of preference (best first) is: 100BASE-TX full duplex, 100BASE-TX half duplex, 10BASE-T full duplex, and 10BASE-T half duplex. Auto-negotiation is defined in the IEEE 802.3 standard for Ethernet and is an operation that takes place in a few milliseconds.

Bandwidth The information capacity, measured in bits per second, that a channel can transmit. The bandwidth of Ethernet is 10 Mbps, the bandwidth of Fast Ethernet is 100 Mbps. The bandwidth for 802.11b wireless is 11Mbps.

Category 3 Cables One of five grades of Twisted Pair (TP) cabling defined by the EIA/TIA-586 standard. Category 3 is voice grade cable and can only be used in Ethernet networks (10BASE-T) to transmit data at speeds of up to 10 Mbps.

Category 5 Cables One of five grades of Twisted Pair (TP) cabling defined by the EIA/TIA-586 standard. Category 5 can be used in Ethernet (10BASE-T) and Fast Ethernet networks (100BASE-TX) and can transmit data up to speeds of 100 Mbps. Category 5 cabling is better to use for network cabling than Category 3, because it supports both Ethernet (10 Mbps) and Fast Ethernet (100 Mbps) speeds.

Channel Similar to any radio device, the Wireless Cable/DSL router allows you to choose different radio channels in the wireless spectrum. A channel is a particular frequency within the 2.4GHz spectrum within which the Router operates.

Client The term used to described the desktop PC that is connected to your network.

DHCP Dynamic Host Configuration Protocol. This protocol automatically assigns an IP address for every computer on your network. Windows 95, Windows 98 and Windows NT 4.0 contain software that assigns IP addresses to workstations on a network. These assignments are made by the DHCP server software that runs on Windows NT Server, and Windows 95 and Windows 98 will call the server to obtain the address. Windows 98 will allocate itself an address if no DHCP server can be found.

DNS Server Address DNS stands for Domain Name System, which allows Internet host computers to have a domain name (such as 3com.com) and one or more IP addresses (such as 192.34.45.8). A DNS server keeps a database of

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3Com WL-540A, WL-540B, 3CRWE754G72-A, 3CRWE754G72-B manual Glossary

Contents

OfficeConnect Adsl Wireless 11g Firewall Router User Guide 3Com Corporation Campus Drive Marlborough, MA USA Contents Running the Setup Wizard Troubleshooting Technical Specifications About this Guide Conventions Document to 3Com atPddtechpubscomments@3com.com Configure your Router About this Guide Wireless11g OfficeConnect AdslFirewall Router Example Network Without a Gateway Router Advantages Power LED Green Minimum System Component RequirementsFront Panel DSL Sync LED GreenWireless LAN Wlan Status LED Green Wireless AntennaeRear Panel Four LAN Status LEDsReset Button Power Adapter SocketAdsl Port Safety Information IntroductionPositioning the Router Powering Up ConnectingRouter Connecting the Gateway EitherInstalling with a splitter Installing without a splitter Hardware Installation Setting UP Your Computers Obtaining an IP Address AutomaticallyRestart your computer Local Area Properties ScreenWindows XP From the Windows Start menu, select Control PanelWindows 95/98/ME Software ProxyAccessing WizardRouter Login Screen Accessing the Wizard PPPoE Mode PPPoE ScreenPPPoA Mode RFC1483 Routed ModeRFC1483 Bridged Mode RFC1483 Routed Configuration ScreenRFC1483 Bridged Configuration Screen Running the Setup Wizard Configuration NavigatingThrough the Router PagesLAN Setup LAN Setup Dhcp Clients List Dhcp Clients List Screen Wireless Wireless Settings ScreenEncryption Encryption Screen WPA-PSK no server WPA-PSK no server Screen Bit WEP 128-bit WEP Screen Server WPA with Radius Server ScreenConnection Type Connection Type Screen Internet Settings PPPoA PPPoA Settings Screen Enter a value of 0 to disable this timeout Click Apply Single PCRouting Supports the following routing functionalityStatic Routing RIP Routing Information Protocol RIP allows the networkRouting Select the Operation Mode Disabled RIP is not enabled for the WAN or LAN interfaceFirewall Routing Table ScreenSpecial Applications Special Applications Screen Virtual Servers Virtual Servers Screen Access Control Access Control Screen Click OK to add the settings Add PC ScreenURL Blocking URL Blocking Screen Click Add Rule Add Schedule Rule Screen Filtering MAC Address Filtering ScreenDMZ DMZ Screen Remote Admin NAT EnableUniversal Plug and Play Remote Administration WAN Ping BlockingAgent installed Snmp Simple Network Management Protocol allows remoteSnmp Community Snmp Trap Snmp Trap Screen Perform certain administrative functions DefaultSystem Tools Restart RouterSettings Admin Password Admin Password Screen Time and Time Zone Time and Time Zone screen This screen shows modem status and statistics Router Configuration Browsing to the Router Configuration Screens Basic ConnectionChecks Connecting to Forgotten PasswordReset to Factory DefaultsNetworking Troubleshooting Frequently Asked Questions How do I reset the Router to Factory Defaults?How many wireless clients does the Router support? How many computers on the LAN does the Router support?Where can I download software updates for the Router? Does the Router support virtual private networks VPNs?Protocol Suite Managing the Router over the NetworkInternet protocol suite consists of a well-defined set TCP working together. TCP/IP is an internationally adoptedType One Type TwoHow does a Device Obtain an IP Address and Subnet Mask? Appendix a IP Addressing OfficeConnect Adsl Wireless 11g Firewall Router InterfacesWlan Interfaces Operating Temperature PowerDimensions WeightSystem Requirements Operating Systems Maximum cable length of 100m 327.86 ftAppendix B Technical Specifications Safety Information Important Safety InformationWichtige Sicherheitshinweise Consignes Importantes de Sécurité Appendix C Safety Information Agreement 3Com CorporationAppendix D END User Software License Agreement Product to Gain Service Benefits ServicesRegister Your PurchaseAccess Software DownloadsContact Us Telephone TechnicalAustralia 800 678 Philippines Published 16th July Glossary Glossary Ethernet Address See MAC address Glossary Glossary Traffic The movement of data packets on a network Area Glossary Index Index Channels FCC StatementLocal regulatory agencies You are locatedConformity Model Description 3CRWE754G72-A/BCE Statement EuropeRF Exposure Compliance Statement U.S108 Page DUA0075-4AAA01 Rev