Cabletron Systems 3Com manual Conﬁguring the Originating Modem

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Special Configuration Considerations

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Conﬁguring PPP/Modem To use a Point-to-Point (PPP) connection, choose the appropriate hardware connection (direct or modem). On the System Conﬁguration page, select PPP for Default Interface.

The PPP interface provides a connection using modems over a telephone line. Connect modems to the APs with straight-through serial cables. Designate one AP as the Originating AP and the other AP as the Answering AP. Conﬁgure the Originating AP with dial-out information to the answering AP. The answering AP waits for a dial-in from the originating AP.

The AP supports modems that use the generic Hayes Smartmodem command set The AP uses Hayes commands and is capable of operating with various modems of 19200 baud or faster. 3Com does not support modems the company has not qualiﬁed.

The following modems qualify to work with the AP:

■Practical Peripherals PM288MT II V.34

■Supra Fax Modem 288

■US Robotics Sportster Modem 28.8

Conﬁguring the Originating Modem

1Select Conﬁguration-->PPP/Modem. The PPP/Modem Setup page displays.

2Select Enabled for PPP Interface.

3Select PPP for Serial Port Use.

4Select Originate for Modem Connect Mode.

5Select Yes for Modem Connected.

6Select Auto for Dialout Mode.

7Select the appropriate mode for Modem Speaker.

This setting sends a command to the modem to turn the modem speaker on or off. The default is On.

8Type the telephone number (maximum 31 characters) of the answering AP for Dialout Number.

This string follows a typical Hayes Smartmodem ATDT command. Possible characters include pauses, numbers and letters. Refer to your modem documentation for speciﬁc information.

9Enter the time in seconds that the AP will wait for a remote connection for Answer Wait Time.

If the AP does not make a remote connection in the amount of time you specify, it will discontinue attempts to make a connection. The default is 60 seconds from a 5- to 255-second range.

10Enter the time in minutes for Inactivity Timeout.

This setting controls the time-out between issuing a PPP packet and the anticipated reply. This is necessary if the serial connection has long delay periods. Zero (0) indicates no time-out. The default is 3 from a 0 to 255-minute range.

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Contents Version AirConnect 11 Mbps Wireless LAN Access Point User Guide95052-8145 3Com CorporationBayfront Plaza Santa Clara, CaliforniaContents Installing Access Point Hardware Monitoring Wireless Clients Access Point Installation Conﬁguring the AP Access Point Specifications Technical Support Page Topologies Overview of Digital Wireless NetworkingIntroduction AirConnect NetworkOverview of Digital Wireless Networking AirConnect Network Topologies To the Ethernet LAN AirConnect AccessWireless clients PointAirConnect Access Point Results in the original digital data PowerBASE-TWireless clients and APs Radio BasicsRadio Basics 802.1d Spanning Tree Support Wireless LAN Service AreaSite 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 Increased MIB Support Using SnmpProgrammable Snmp Trap Support Management protocol MIBMethod Description Using the User InterfaceRequirements Installing Access Point HardwarePrecautions Package ContentsUS line cord Part Number Power OptionsStandard power supply 115/230VAC, 50/60Hz, 24V/14 Remote power distribution system, Part Number AP-PS-11Mounting the AP BelowWall Mount To mount an AP on a wall Ceiling Mount To mount an AP on a ceiling Mounting the AP Using PowerBASE-TPowerBASE-T can be used to power the AP LED Indicators Off Blinking Power No power Power on During boot sequenceCondition, and other activity Electrical Management System EMS operating outlet Troubleshooting3Com Support Center Verify AP OperationNetwork connection veriﬁcation Verify Network Wiring TopologyPage Forwarding Counts Monitoring StatisticsSystem Properties Interface StatisticsEthernet Statistics Radio FrequencyStatistics Type Name Definition MiscellaneousStatistics window, select Main Menu→Misc Statistics Press Esc or Previous F4 to exitClearing Statistics Known APsSelect Clear All Statistics Setup Network Web Server Help File Access Gaining Access to the User Interface UI Using a Web BrowserGaining access to the User Interface UI Help File AccessSelect System Conﬁguration Accessing the Web Browser UISelect Virtual Directory Select Close/ExitSelect Save F1 to save the conﬁguration Select Special Functions Select Reset APType the case sensitive AP name Under Conﬁguration, select Security Select System PasswordSelect Easy Setup--Easy Setup Select Easy Setup--Easy Setup Click Add/Delete GatewaysParameter Description Adding Allowed Wireless Clients Adding or Deleting a Range of Allowed Wireless ClientsAdding or Deleting Disallowed Wireless Clients Select Conﬁguration--Security For the Short RF Preamble setting, click DisabledConsiderations Enabling or Disabling EncryptionEnable or disable interfaces on the AP Interface Description Default ConditionFrequency No. of Channels Country Enter the Multicast Mask data and voice values Snmp Trap Description Default Value Select Enabled or Disable All for All Snmp TrapsConﬁguring the Originating Modem Conﬁguring the Answering Modem Filtering to Forward PacketsFiltering to Discard Packets Under Conﬁguration, select Firmware Removing Filtered Packet Types Networking ProtocolsClick Delete Filter Disabling Type FilteringSpecial Function Description Active. Clear the wireless client association table forMonitoring Wireless Clients Wireless ClientsSelect Regular at the Wireless Clients prompt Indicates a 3Com voice-enabled device Ascii Interface Latest version. Refer to Manually Updating AP Firmware onVersions Enable serial port Conﬁgure the AP for the followingArrow/Function Key Control Character Prompt Description To exit from submenus, press EscConﬁguring The Serial Port Select Telnet LoginsPress Tab to select System Password To enable and conﬁgure the serial port connection on the APSelect Modem Hangup Setting DescriptionConﬁguring the Dial-Up System Hanging UpWindow InstallationConfiguring the AP That can associate with this AP. The default is Disabled Wsaid PPP Direct Establishing a ConnectionPPP with Modems From the answering APs UI Set the Connect Mode to AnswerOriginating AP Answering APFor automatic dial-out, reset the AP Press up/down arrows to toggle between range and individual Range of Wireless ClientsRemoving Allowed Wireless Clients Enable/Disable the ACLRemoving All Allowed Wireless Clients Address Filtering Load ACL from Wireless Client ListAdding Disallowed Wireless Clients Removing Disallowed Wireless ClientsOptions Clearing WirelessSetting Logging Clients from the APManually Updating AP FirmwarePrevious version of AP ﬁrmware Remainder of this procedure uses Windows 98 as an example Select Alter Filenames/HELP URL/TFTP and press EnterType the ﬁrmware ﬁle name in the Download Filename ﬁeld Open the Special Functions window Select Transfer from the emulation program menu barSelect Send File Select Alter Filenames/HELP URL/TFTP Server and press Enter Download is complete when the UI displaysExtended Roaming Using MD5Authentication Performing PingsWireless client and the access point EncryptionHex-digit sequence Restoring Conﬁgurations Press the Tab key to highlight .Short RF Preamble EnabledSelect Restore Factory Conﬁguration Output Characteristics Access Point SpecificationsPhysical Characteristics Radio Characteristics Frequency No. of Channels CountryNetwork Characteristics World Wide Web Site ServicesTechnical Support Online TechnicalNorth America Latin AmericaTo obtain an RMA number, call or fax Page Ascii IndexSnmp agent 3Com AirConnect Access Point 3Com Corporation Limited WarrantyObtaining Warranty Radio Frequency Interference Requirements Canada Regulatory Compliance Information3Com End User Software License Agreement Important Read Before Using This Product