Overview of Digital Wireless Networking | Cabletron Systems 3Com

10CHAPTER 1: OVERVIEW OF DIGITAL WIRELESS NETWORKING

Same-Site Separate In this scenario, as shown in the following ﬁgure, Multiple APs can coexist as Networks separate networks at the same site without interference using different network

identiﬁers (wireless LAN service areas). The wireless clients can move within the coverage area of one AP and remain connected, or can roam (if conﬁgured to do so) to the coverage area of a different AP, and communicate with the wireless clients associated with that AP.

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Cabletron Systems 3Com manual Overview of Digital Wireless Networking

Contents

AirConnect 11 Mbps Wireless LAN Access Point User Guide Version Clara, California 3Com CorporationBayfront Plaza Santa 95052-8145 Contents Installing Access Point Hardware Monitoring Wireless Clients Access Point Installation Conﬁguring the AP Access Point Specifications Technical Support Page AirConnect Network Overview of Digital Wireless NetworkingIntroduction Topologies Overview of Digital Wireless Networking AirConnect Network Topologies Point AirConnect AccessWireless clients To the Ethernet LAN AirConnect Access Point Radio Basics PowerBASE-TWireless clients and APs Results in the original digital data Radio Basics Wireless LAN Service Area 802.1d Spanning Tree Support Site Surveys Filtering and Access Control Network Control Protocol NCP as described PPP Connection Data Rate Requirement Overview of Digital Wireless Networking Theory of Operation Simple Network Management Protocol Snmp Management protocol MIB Using SnmpProgrammable Snmp Trap Support Increased MIB Support Using the User Interface Method Description Package Contents Installing Access Point HardwarePrecautions Requirements Remote power distribution system, Part Number AP-PS-11 Power OptionsStandard power supply 115/230VAC, 50/60Hz, 24V/14 US line cord Part Number Below Mounting the APWall Mount To mount an AP on a wall Ceiling Mount To mount an AP on a ceiling Mounting the AP PowerBASE-T UsingPowerBASE-T can be used to power the AP Off Blinking Power No power Power on During boot sequence LED IndicatorsCondition, and other activity Verify AP Operation Troubleshooting3Com Support Center Electrical Management System EMS operating outlet Verify Network Wiring Topology Network connection veriﬁcationPage Interface Statistics Monitoring StatisticsSystem Properties Forwarding Counts Radio Frequency Ethernet StatisticsStatistics Press Esc or Previous F4 to exit MiscellaneousStatistics window, select Main Menu→Misc Statistics Type Name Definition Known APs Clearing StatisticsSelect Clear All Statistics Help File Access Gaining Access to the User Interface UI Using a Web BrowserGaining access to the User Interface UI Setup Network Web Server Help File Access Select Close/Exit Accessing the Web Browser UISelect Virtual Directory Select System Conﬁguration Select Special Functions Select Reset AP Select Save F1 to save the conﬁguration Under Conﬁguration, select Security Select System Password Type the case sensitive AP name Select Easy Setup--Easy Setup Click Add/Delete Gateways Select Easy Setup--Easy SetupParameter Description Adding or Deleting a Range of Allowed Wireless Clients Adding Allowed Wireless ClientsAdding or Deleting Disallowed Wireless Clients Enabling or Disabling Encryption For the Short RF Preamble setting, click DisabledConsiderations Select Conﬁguration--Security Interface Description Default Condition Enable or disable interfaces on the APFrequency No. of Channels Country Enter the Multicast Mask data and voice values Select Enabled or Disable All for All Snmp Traps Snmp Trap Description Default Value Conﬁguring the Originating Modem Filtering to Forward Packets Conﬁguring the Answering ModemFiltering to Discard Packets Disabling Type Filtering Removing Filtered Packet Types Networking ProtocolsClick Delete Filter Under Conﬁguration, select Firmware Active. Clear the wireless client association table for Special Function Description Wireless Clients Monitoring Wireless ClientsSelect Regular at the Wireless Clients prompt Indicates a 3Com voice-enabled device Latest version. Refer to Manually Updating AP Firmware on Ascii InterfaceVersions Conﬁgure the AP for the following Enable serial portArrow/Function Key Control Character To exit from submenus, press Esc Prompt Description To enable and conﬁgure the serial port connection on the AP Select Telnet LoginsPress Tab to select System Password Conﬁguring The Serial Port Hanging Up Setting DescriptionConﬁguring the Dial-Up System Select Modem Hangup Installation Window Configuring the AP That can associate with this AP. The default is Disabled Wsaid Establishing a Connection PPP DirectPPP with Modems Answering AP Set the Connect Mode to AnswerOriginating AP From the answering APs UI For automatic dial-out, reset the AP Range of Wireless Clients Press up/down arrows to toggle between range and individual Enable/Disable the ACL Removing Allowed Wireless ClientsRemoving All Allowed Wireless Clients Removing Disallowed Wireless Clients Load ACL from Wireless Client ListAdding Disallowed Wireless Clients Address Filtering Clients from the AP Clearing WirelessSetting Logging Options AP Firmware Manually UpdatingPrevious version of AP ﬁrmware Select Alter Filenames/HELP URL/TFTP and press Enter Remainder of this procedure uses Windows 98 as an exampleType the ﬁrmware ﬁle name in the Download Filename ﬁeld Select Transfer from the emulation program menu bar Open the Special Functions windowSelect Send File Download is complete when the UI displays Select Alter Filenames/HELP URL/TFTP Server and press Enter Performing Pings Using MD5Authentication Extended Roaming Encryption Wireless client and the access pointHex-digit sequence Press the Tab key to highlight .Short RF Preamble Enabled Restoring Conﬁgurations Select Restore Factory Conﬁguration Radio Characteristics Frequency No. of Channels Country Access Point SpecificationsPhysical Characteristics Output Characteristics Network Characteristics Online Technical ServicesTechnical Support World Wide Web Site Latin America North America To obtain an RMA number, call or fax Page Index Ascii Snmp agent 3Com Corporation Limited Warranty 3Com AirConnect Access Point Obtaining Warranty Regulatory Compliance Information Radio Frequency Interference Requirements Canada Important Read Before Using This Product 3Com End User Software License Agreement