Western Telematic RSM-32 Direct Connect Feature, Standard Telnet Protocol, SSH and Raw Socket

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Telnet & SSH Functions

8.3. The Direct Connect Feature

The Direct Connect feature allows you to initiate a Telnet, SSH or Raw Socket session with the RSM and make an immediate connection to a specific RS232 Port of your choice, without first being presented with the command interface. This allows you to connect to a TCP port that is mapped directly to one of the RSM's RS232 Serial Ports.

Direct Connect employs unique, pre-assigned TCP port numbers for each RS232 Port. The user connects to the port of choice by including the associated TCP port number in the Telnet or SSH connect command line.

The Direct Connect feature can be individually configured at each RS232 Port and can be used to connect to Any-to-Any, Passive, Buffer, or Modem Mode ports.

8.3.1.Standard Telnet Protocol, SSH and Raw Socket

The Direct Connect feature allows you to establish port connections using either Standard Telnet Protocol, SSH encryption or Raw Socket. When Standard Telnet Protocol is used, the RSM will respond to all IACs.

When configuring a port to allow Direct Connections using SSH protocol, note that the Direct Connect option (Port Configuration Menu, Item 31), must be set to "On - Password" as described in Section 8.3.2.

When configuring a port to allow Direct Connections using either Standard Telnet or Raw Socket Mode, note that the Direct Connect option (Port Configuration Menu, Item 31) may be set to either "On - Password" or "On - No Password".

8.3.2.Configuration

The Direct Connect Function is configured on a per port basis using the Port Configuration Menus (/P nn), item 13, "Direct Connect". The following options are available:

1.Direct Connect OFF: Direct Connect disabled at this port. (Default)

2.Direct Connect ON - NO PASSWORD: The Direct Connect feature is enabled at this port, but no password is required in order to connect to the port.

a)When the Telnet connection is established, the user is immediately connected directly to the specified port, and the client is notified at the TCP level.

b)This option is intended for situations where security is provided by the attached device.

Note: The SSH Direct Connection function is disabled when the "On - No Password" option is selected.

8-2

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Contents RSM Series Shock Hazard Do Not Enter Lithium Battery Secure RackingDisconnect Power Agency Approvals Table of Contents Configuration Table of Contents List of Figures Security and Collocation Features IntroductionIntelligent Port Selection Capture BufferConfiguration Backup RSM-8, RSM-16, RSM-16DC, RSM-32 and RSM-32DC UnitsTypographic Conventions Bold FontUnit Description Front PanelBack Panel Instrument Back Panel Model RSM-8 Power On/Off Switch Quick Hardware Installation Apply Power to the RSMGetting Started Connect your Control Device to the RSMCommunicating with the RSM Port Status Screen Text Interface RSM-8 Shown Getting Started Connecting Power to the RSM Unit Hardware InstallationDC Powered Units Connecting the Network Cable Connecting Devices to the RSMCommunicating with the RSM Unit ConfigurationText Interface Configuration Web Browser Interface Home Screen Web Browser InterfaceSystem SetUp Ports Configuration MenusDefining System Parameters System ParametersConfiguration Real Time Clock and Calendar Invalid Access Lockout Feature Audit Log Callback Security Configuration Port Access Supervisor AccessUser Accounts Managing User Accounts Viewing User AccountsAdding User Accounts Add User Menu Text Interface RSM-8 ShownConfiguration Modifying User Accounts Deleting User AccountsRS232 Port Configuration 1. RS232 Port ModesPort Configuration Menu Text Interface 2. RS232 Port Configuration Menus Communication SettingsGeneral Parameters Port Mode Parameters AT&C1&D2S0=1&B1&H1&R2Network Services Configuring the Internal Modem Network Configuration Servers and ClientsConfiguration Network Parameters 11 Network Parameters Menu Web Browser InterfaceNetwork Port Parameters 12 Network Port Parameters Menu Web Browser InterfaceConfiguration IP Security IP SecurityConfiguration Configuration Except Net/Mask PairsConfiguration Static Route 15 Static Route Menu Text InterfaceDomain Name Server 17 Nomain Name Server Menu Text Interface19 Snmp Access Menu Text Interface Snmp ParametersConfiguration Ldap Parameters LdapConfiguration Group Membership Value Type Default = DN Ldap Group25 Add Ldap Group Menu Text Interface RSM-8 Shown 27 View Ldap Group Menu Text Interface RSM-8 Shown 29 Modify Ldap Group Menu Text Interface RSM-8 Shown 31 Delete Ldap Group Menu Web Browser Interface 32 Ldap Kerberos Set Up Menu Text Interface Configuration Tacacs Parameters 34 The Tacacs Parameters Menu Text InterfaceConfiguration Radius Parameters 36 The Radius Parameters Menu Text InterfaceConfiguration 38 The Copy Port Parameters Menu Save User Selected Parameters CP 3,5,7-9 EnterStatus Screens Port Status Screen /S Status ScreensPort Diagnostics Screen /SD Port Diagnostics Screen RSM-8 ShownNetwork Status Screen /SN Porttcp Portstatus UsernamePort Parameters Screens /W Port Parameters Screen RS232 Port ShownXx Enter Operation Any-to-Any ModePort Connection and Disconnection Operation Operation 4 Enter EnterDefining Hunt Groups Hunt Group ExamplePassive Mode Buffer Mode Reading Data from Buffer Mode PortsPort Buffers Modem Mode Network Port Numbers Telnet & SSH FunctionsSSH Encryption Configuration Direct Connect FeatureStandard Telnet Protocol, SSH and Raw Socket Telnet & SSH Functions Standard Telnet Direct Connection without Password RSM-8 SSH Direct Connection with Password RSM-8RSM-16 & RSM-16DC RSM-32 & RSM-32DCRaw Socket Direct Connection without Password RSM-8 Raw Socket Direct Connection with Password RSM-8Connection Example Terminating a Direct Connect Session Syslog Feature ConfigurationCriteria for Generating a Syslog Message Testing Syslog Configuration Test Menu Text Interface, Supervisor Mode OnlySnmp Traps 10-1Snmp Trap Message How and When Snmp Traps are SentSnmp Contact Optional Snmp Location Optional Testing the Snmp Trap Function Saving and Restoring Configuration Parameters Sending Parameters to a FileRestoring Saved Parameters Upgrading RSM Firmware 12-112-2 Command Reference Guide Command ConventionsCommand Summary Resident Disconnect Sequence Command SetAudit Log Connect Format /C x x EnterCP Copy RS232 Port Parameters Format /CP EnterThird Party Disconnect Format /D/Y x x Enter2 Enter or /D/Y 3 Enter Erase BufferReboot System Default Set System ParametersHelp Display Site IDSet Network Port Parameters Send SSH KeySet RS232 Port Parameters PW Change Password SD Display Port DiagnosticsRead Buffer Display Port StatusUF Upgrade Firmware UL Unlock Port Invalid Access LockoutTest Test Network Parameters Save ParametersExit Command Mode Display Port Parameters WhoFormat /W x Enter Format /X EnterWhen not connected When connectedAppendix A. RS232 Port Interface Appendix B. Specifications RS232 Port Interface ConnectorsPhysical / Environmental Power Models RSM-32 and RSM-32DCAppendix C. Customer Service Trademark and Copyright Information Trademarks Used in this ManualIndex Tacacs DhcpIndex-2 Index-3 Index-4