Lantronix 900-653-R manual Change Telnet Configuration Password, Dhcp Name

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7: Setup Mode: Server Configuration

Change Telnet Configuration Password

Setting the Telnet configuration password prevents unauthorized access to the setup menu through a Telnet connection to port 9999 or through web pages. The password must have 4 characters. The default setting is N (No).

Change Telnet/Web Manager password (N) ? _

An enhanced password setting (for Telnet access only) of 16 characters is available under Security Settings (Option 6) and can be modified or disabled via Web Manager (see Server Configuration).

Note: You do not need a password to access the Setup Mode window by a serial connection.

DHCP Name

If a DHCP server has automatically assigned the IP address and network settings, you can discover the unit by using the DeviceInstaller network search feature or Monitor Mode (see Chapter 11: Monitor Mode).

Note: When you enter Monitor Mode from the serial port with network connection enabled and issue the NC (Network Communication) command, you see the unit’s IP configuration.

There are three methods for assigning DHCP names to the unit.

Default DHCP Name: If you do not change the DHCP name, and you are using an IP of 0.0.0.0, then the DHCP name defaults to XX.XX.XX.XX (XXXXXX is the last 6 digits of the MAC address shown on the label on the bottom/side of the unit). For example, if the MAC address is 00-20-4A-12-34-56, then the default DHCP name is C123456.

Custom DHCP Name: You can create your own DHCP name. If you are using an IP address of 0.0.0.0, then the last option in Server configuration is Change DHCP device name. This option allows you to change the DHCP name to an alphanumeric name (LTX in our example).

Change DHCP device name (not set) ? (N) Y Enter new DHCP device Name : LTX

Numeric DHCP Name: You can change the DHCP name by specifying the last octet of the IP address. When you use this method, the DHCP name is LTXYY where YY is what you chose for the last octet of the IP address. If the IP address you specify is 0.0.0.12, then the DHCP name is LTX12. This method only works with 2 digit numbers (01-99).

xDirect User Guide

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Contents User Guide Copyright & Trademark WarrantyContacts DisclaimerUsing this Guide Table of ContentsInstallation of xDirect Using DeviceInstallerConfiguration Via Telnet or Serial Port Setup Mode Configuration Using Web ManagerSetup Mode Channel Configuration Setup Mode Server ConfigurationMonitor Mode Setup Mode Advanced SettingsFirmware Upgrades Appendix B Connections and Pinouts Appendix a Troubleshooting and Contact InfoAppendix E Binary to Hexadecimal Conversions Appendix F ComplianceSerial Tunneling Example List of FiguresList of Tables Chapter Summary Using this GuidePurpose and Audience Document Description Additional DocumentationApplications Key FeaturesIntroduction Introduction Protocol Support Additional FeaturesConfiguration Methods Product Label Product Information LabelInstalling the xDirect Installation of xDirectPackage Contents IP Address Required InformationHardware Address Installing DeviceInstaller Using DeviceInstallerTo install DeviceInstaller Assigning an IP AddressViewing the Current Configuration Accessing the xDirect Using DeviceInstallerTo view the units current settings XDirect Configuration in DeviceInstallerComments Supports Configurable PinsDevice Family TypeNext Step Assigning the IP Address Serial Port LoginAccessing xDirect Using DeviceInstaller Configuration Using Web ManagerConfiguration Using Web Manager Network Mode Network ConfigurationAutomatic IP Address Configuration To assign an IP address automaticallyEthernet Configuration Static IP Address ConfigurationSelect Use the following IP configuration To assign an IP address manuallyTo configure the xDirect device server settings Server ConfigurationCPU Performance Mode Monitor Mode @ BootupConfig Server Port Timeout msTo configure the host list Host List ConfigurationRetry Timeout Retry CounterTo configure the channel’s serial settings Channel 1 ConfigurationSerial Settings Baud Rate Enable PackingData Bits ParityAccept Incoming Connection Settings TCPTo configure a channel’s TCP settings Modem Mode Password RequiredModem Escape Sequence Pass ThroughTo configure a channel’s UDP settings Connection Settings UDPDevice Address Table Datagram TypeUse Broadcast Apply Defaults Apply SettingsAccessing Setup Mode Configuration Via Telnet or Serial Port Setup ModeTelnet Connection To establish a Telnet connectionPassword Press Enter for Setup Mode Serial Port Connection Exiting Setup ModeTwo options through which to exit setup mode Server Configuration Option Setup Mode Server ConfigurationBootP/DHCP/AutoIP options IP AddressNetmask Number of Bits for Host Part Set Gateway IP AddressSet DNS Server IP Address Standard IP Network NetmasksDhcp Name Change Telnet Configuration PasswordBaudrate Setup Mode Channel ConfigurationChannel 1 Option Interface Mode Options Interface ModeCommon Interface Mode Settings FlowPort Number Connect ModeFlow Control Options Reserved Port NumbersIncoming Connection Connect Mode OptionsConnect Mode Option Manual Connection Address Example ResponseActive Startup C0.0.0.0/0 Host List Option HostlistAutostart Automatic ConnectionTo enable the hostlist Modem ModeDatagram Type Directed UDPMessage Meaning Modem Mode Messages10 Modem Mode Commands Send the Escape Sequence +++ in Modem ModeModem Mode Function Command Show IP Address after RingAuto Increment Source Port Disconnect Mode DisConnModeRemote IP Address Remote Port12 Flush Mode Options Flush Mode Buffer Flushing11 Disconnect Mode Options Packing Interval Pack ControlTrailing Characters Send CharactersChannel Port Password DisConnTime Inactivity TimeoutSend Characters Telnet Terminal TypeExpert Settings Option Setup Mode Advanced SettingsARP Cache Timeout In Seconds TCP Keepalive Time In SecondsSecurity Settings Option Snmp Community Name Disable SnmpDisable Telnet Setup Disable Port 77FE Hex Disable Tftp Firmware UpdateDisable Web Server Disable Web SetupEnable Enhanced Password Default Settings OptionExpert Settings Defaults Channel 1 Configuration DefaultsSecurity Settings Defaults Setup Mode Advanced SettingsUsing Tftp Graphical User Interface Firmware UpgradesObtaining Firmware Reloading Firmware Firmware FilesTo recover firmware Using Tftp Command Line InterfaceFirmware Upgrades Entering Monitor Mode Using the Serial Port Monitor ModeEntering Monitor Mode Using the Network Port To enter Monitor Mode locallyMonitor Mode Commands Monitor Mode CommandsCommand Command Name Function G0, G1, ....,Ge, GfResponse Meaning Command Response CodesLEDs Appendix a Troubleshooting and Contact InfoStatus LED Table A-2 Status LEDRJ45 Ethernet LED Problems and Error MessagesSerial LEDs Using DeviceInstaller Serial Settings on page 29 or Europe, Middle East and Africa Technical SupportUnited States Serial Port Pinouts Appendix B Connections and PinoutsTable B-6 Ethernet RJ45 Connector Pin-Outs Ethernet Connector PinoutsPower Jack Mini USB-B Category Description Appendix C Technical SpecificationsTable C-1 xDirect Technical Specifications Appendix C Technical Specifications AutoIP Appendix D Alternative Ways to Assign an IP AddressTo assign a temporary IP address ARP and TelnetConverting Binary to Hexadecimal Appendix E Binary to Hexadecimal ConversionsConversion Table Scientific CalculatorAppendix E Binary to Hexadecimal Conversions Appendix F Compliance SafetyManufacturer’s Name & Address Electromagnetic EmissionsRoHS Notice Appendix F Compliance