Milan Technology MIL-W1311 AT Commands, Required Settings, Finding the current Initial String

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Appendix C

AT Commands

AT Commands

C

This Appendix details the "AT" commands used by modems and ISDN TAs. This information is provided to assist users who are using the Wireless Gateway's serial (RS232 port).

It is not relevant to Cable or DSL modems connected to the WAN (Ethernet) port.

Required Settings

For the Wireless Gateway to use the Serial Port correctly, the modem or ISDN TA must be set as follows.

Setting	AT Command
Fixed baud rate setting	AT&B1

RTS/CTS flow control	AT&K3

DCD to track the presence of a carrier	AT&C1

DTR off to hang-up modem	AT&D2

DSR always on	AT&S0

If your Modem or ISDN TA uses the commands above, then the Initial String would be as follows:

AT&F&B1&K3&C1&D2&S0X4

Notes:

•The command "AT&F" is used to set the modem to the factory default settings, to ensure a consistent starting point.

•For some Mircocom and other modems, the "ATX4" command is not sufficient - a "W2" command (no "AT") must be used as well.

•ISDN TAs may not use these commands; please check your user guide for your ISDN TA.

Finding the current Initial String

If your modem or ISDN TA is already working correctly using the PC's serial port, but you don’t know what the initialization string is, you can use the following procedure to find out.

1.Select My Computer, then Dial-Up Networking.

2.Select the icon for your connection, then Properties.

3.Click the Configure button, then the Connection tab, as shown below.

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Contents ShAir Office Table of Contents Wireless Gateway Pcmcia Wireless Card MIL-W1311 only Access Control Wireless LAN ConfigurationAT Commands Standard AT Commands URL Filter Virtual ServersLAN Features Wireless Gateway FeaturesIntroduction Wireless Features Internet Access FeaturesNetwork Printer Security Features RAS Remote Access ServicesConfiguration & Management Advanced Internet FunctionsPackage Contents Physical DetailsRear Panel Rear PanelPower port Reset ButtonTo Clear All Data and restore the factory default values Pcmcia slotRestore Default IP Address and Clear Password DIP SwitchesDIP Switch Setting Description Choose an Installation Site InstallationProcedure RequirementsConnect LAN Cable Insert Wireless Pcmcia cardPower Up Connect WAN CableOverview ConfigurationTo Do this Refer to Preparation Configuration ProgramConnecting to the Wireless Gateway If you cant connectPassword Navigation & Data InputQuick Setup Screen Quick Setup OverviewConfiguration Data Quick Setup Screen RouterWireless Buttons CancelWEP Status SaveData Wireless Screen Wireless ScreenConfiguration Wireless Station Access WEP Data PrivacyExisting Stations Access For Wireless Stations listed above PermissionFor Other Wireless Stations New stationDevice Name Status ScreenData Status Screen Physical AddressSystem WAN LinksAccess Control Log Internet Access LogData WAN Status Direct ConnectionWAN Status Status Data WAN Status PPPoEConnection Log Disconnect Connection Log MessagesConnect Clear LogTo check your PCs TCP/IP Settings PC ConfigurationTCP/IP Settings Windows ClientsUsing Dhcp Using Specify an IP AddressGateway Tab Win 95/98 Internet Access Accessing AOLPrinting Setup Print Port Driver SetupManagement Port OptionsBanner Windows NT 4.0 Server ConfigurationLPD/LPR Printing RetryWindows 2000 Server Configuration Adding the PrinterClient PC Setup for LPD/LPR Printing Windows 2000 Select PortDial-in Configuration Creating a Dial-in Connection in WindowsUsing the Dial-in Connection Dial-up Networking PropertiesMacintosh Clients Installing the PrinterPrinting LPD Printing on Linux Internet Access on LinuxLinux Clients To act as a Dhcp Client recommendedOther Unix Systems Wireless Station ConfigurationFor Internet Access via the Wireless Gateway LPD PrintingUsing another Dhcp Server Using the Wireless Gateways Dhcp ServerWhat Dhcp Does To Configure your PCs to use Dhcp Serial Port Serial Port ScreenData Serial Port Screen Internet AccessModem Dial-In LinksInitial String Modem Properties ScreenData Modem Properties Screen Other PropertiesSave as OtherDial -in Users Controlling Dial-in AccessOverview Existing Users Dial-in Users ScreenData Dial-in Users Screen Other UsersData User Details Screen User Details ScreenUser ID Time limit Enable dial-in accessEnforce connection Call backData Serial Port Status Screen Serial Port StatusOverview StatusConnection Log LogSerial Port When prompted for the password, leave the User Name blank PasswordOptions Remote Management DNS Domain Name ServerNAT Network Address Translation To connect from a remote PC via the InternetData Printer Port Screen Routing TablePrinter Port AppleTalkLogical Printers Printer StatusRouting Screen Using this ScreenRouting Static Routing TableData Routing Screen Static Routing TableLocal Router Router ConfigurationUpdate Other Routers on the Local LANFor Router Bs Default Route For the Wireless Gateways Routing TableFor Router As Default Route Static Routing ExampleAdvanced Internet Advanced Internet ScreenSpecial Applications Screen Using a Special ApplicationSpecial Internet Applications At any time, only one 1 PC can use each Special ApplicationSelect Entry Data Special Applications ScreenManaging Special Application Entries DetailsIncoming Operation URL FilterTips Data URL Filter Screen URL Filter ScreenSite List IP Address seen by Internet Users Virtual ServersTypes of Virtual Servers WAN IP Address Virtual Server ScreenData Virtual Server Screen Virtual ServersUser Defined Virtual Servers LAN IP AddressData- User Defined Virtual Servers Screen Managing User Defined Virtual ServersSelect Server Number External Port Connecting to the Virtual ServersInternal Port NumberData DMZ Screen EnableDMZ Screen LAN IP AddressWAN IP Address Access Control Log Access ControlTo use this feature Security Groups Screen OperationsData Security Groups Screen Access Rights Internet Access for this GroupPacket Filter Table Data PCs Screen PCs ScreenSelect PC Reserved Network AdapterReserve entry Security GroupTCP Filters Filters ScreenData Filters Screen Port NoGeneral Problems TroubleshootingInternet Access Problem 1 My PC cant locate the Wireless Access Point Wireless AccessProblem 2 Wireless connection speed is very slow To remove an existing printer port installation PrintingWireless Gateway User Guide Appendix a Troubleshooting Check the Modem Dial-in AccessCheck the Remote PC Appendix a Troubleshooting Infrastructure Mode About Wireless LANsAd-hoc Mode ModesWEP Authentication ChannelsAccess Control Wireless LAN ConfigurationRequired Settings AT CommandsAT Commands Setting AT CommandConnection Properties W95/98 Standard AT Commands Command DescriptionATO Extended AT& Commands Specifications Wireless GatewayPcmcia Wireless Card MIL-W1311 only