Page 1 Order toll-free in the U.S. 24 hours, 7 A.M. Monday to midnight Friday: 877-877-BBOX FREE technical support, 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746 SUPPORT Mail order: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018 INFORMATION Web site: www.blackbox.com • E-mail: info@blackbox.com...
Page 3 TERMINAL SERVERS FEDERAL COMMUNICATIONS COMMISSION INDUSTRY CANADA RADIO FREQUENCY INTERFERENCE STATEMENTS This equipment generates, uses, and can radiate radio frequency energy and if not installed and used properly, that is, in strict accordance with the manufacturer’s instructions, may cause interference to radio communication. It has been tested and found to comply with the limits for a Class A computing device in accordance with the specifications in Subpart J of Part 15 of FCC rules, which are designed to provide reasonable protection...
Page 4 TERMINAL SERVERS NORMAS OFICIALES MEXICANAS (NOM) ELECTRICAL SAFETY STATEMENT INSTRUCCIONES DE SEGURIDAD 1. Todas las instrucciones de seguridad y operación deberán ser leídas antes de que el aparato eléctrico sea operado. 2. Las instrucciones de seguridad y operación deberán ser guardadas para referencia futura.
Page 5 TERMINAL SERVERS 10. El equipo eléctrico deber ser situado fuera del alcance de fuentes de calor como radiadores, registros de calor, estufas u otros aparatos (incluyendo amplificadores) que producen calor. 11. El aparato eléctrico deberá ser connectado a una fuente de poder sólo del tipo descrito en el instructivo de operación, o como se indique en el aparato.
Page 6: Table Of Contents
TERMINAL SERVERS CONTENTS 1. Specifications ......... 13 2.
Page 7 TERMINAL SERVERS 4.5.1 Physical Characteristics—Directly Attached Terminals ........50 4.5.2 Physical Characteristics—Modem Attached Terminals .
Page 8 TERMINAL SERVERS DISCONNECT/CLOSE (secure) ......108 DISCONNECT/CLOSE PORT (privileged) ....108 FORWARDS (secure) .
Page 9 TERMINAL SERVERS PORT BACKWARDS SWITCH (secure) ....143 PORT BREAK (secure) ....... . 143 PORT BROADCAST (nonprivileged) .
Page 10 TERMINAL SERVERS PORT SIGNAL CONTROL (privileged) ....167 PORT SLIP (nonprivileged) ......168 PORT SLIP COMPRESSION (nonprivileged) .
Page 11 TERMINAL SERVERS SERVER PASSWORD LIMIT (privileged) ....182 SERVER PRIVILEGED PASSWORD (privileged) ... 182 SERVER PROMPT (privileged) .
Page 12 TERMINAL SERVERS INTERNET ARP ENTRY (secure) ..... . . 203 INTERNET GATEWAY (secure) ......203 INTERNET HOST (secure) .
Page 13: Specifications
LE2608A-R2: (1) Power LED, For each port: (1) LAN and (1) Activity Connectors — LE2101A-T-R2, LE2101AE-T-R2: (1) DB25, (1) RJ-45, LE2101A-BT-R2, LE2101AE-BT-R2: (1) DB25, (1) RJ-45, (1) BNC); All multiport models: (1) IEC 320, (1) DB25 female (parallel); AUI multiport models: (1) DB15 female and (4) or (8) RJ-45;...
Page 14: Overview
TERMINAL SERVERS 2. Overview The Terminal Servers make possible Ethernet connections to computer equipment that was not designed to be networked. Serial devices such as personal computers, printers, terminals, and modems are supported by the Terminal Servers and the Ethernet concurrently. The Terminal Servers can be configured to provide services from network nodes as well as to access services from the network’s nodes.
Page 15: 2.2 Remote Access Server
The following models are available: • Single-Port Terminal Server (10BASE-T) (part number LE2101A-T-R2) • Single-Port Terminal Server (10BASE-T/BNC) (part number LE2101A-BT-R2) • Terminal Server/4 TCP/IP (AUI) (part number LE2104A-AUI-R2) • Terminal Server/4 TCP/IP (BNC) (part number LE2104A-BNC-R2) • Terminal Server/4 TCP/IP (TP) (part number LE2104A-TP-R2) •...
Page 16: 2.4 Terms
TERMINAL SERVERS 2.4 Terms The following are brief descriptions of the network components occurring in this manual. A session is a logical connection to a service, such as a terminal connected to a host through the Terminal Server. A service is a device that can establish a network connection, such as a host that terminals can connect to.
Page 17: Features Of The Terminal Server
TERMINAL SERVERS 2.5 Features of the Terminal Servers • Easy To Use—Command-line editing, recall and completion are all supported by the Terminal Server’s local mode. • Easy Configuration—The Terminal Server’s powerful command interface is easy for users as well as system managers to operate. Software upgrades are simple, since the Terminal Server’s operating code is immediately downloaded upon power on.
Page 18 TERMINAL SERVERS • Remote Console Support—DEC NCP and TSM facilities can be used to configure Terminal Servers from a remote location. Simple configuration of the Terminal Servers by UNIX managers is provided by the Telnet Terminal Server features of the IP network. •...
Page 19: Installation
TERMINAL SERVERS 3. Installation This chapter explains how to install the Terminal Server. With correct planning and a suitable choice of interfaces and cabling, installation will be relatively simple and trouble-free. Host Ethernet backbone Terminal Printer Server Terminal Terminal Figure 3-1. A Typical Terminal Server Layout. The typical configuration shown in Figure 3-1 shows the Terminal Server functioning as a primary interface between the local user (at a terminal, for example) and the network.
Page 20: 3.1 Indicators Of The Terminal Server
TERMINAL SERVERS 3.1 Indicators of the Terminal Server Table 3-1 describes the front and back panels, switches/buttons, and LED indicators for each Terminal Server model. Table 3-1. Terminal Server Indicators. Model Buttons/Switches Power LEDs LE2101A-R2 Power jack External 115-VAC PWR, LAN, power supply PORT, and ERROR...
Page 21 TERMINAL SERVERS Table 3-2. Power-On Diagnostic Indication. Code Description Base RAM test TIMER test LAN (Ethernet) test NVRAM test Power-On test completed. (If this flashes more than twice, NVRAM has been restored to default.)
Page 22 TERMINAL SERVERS Table 3-3. Loader Indication. Code Description The base unit has entered the software- download state. A loader prompt is displayed on the terminal where the INIT UPDATE command was executed. L (flashing) A new software module is currently being downloaded into the base unit.
Page 23 TERMINAL SERVERS Table 3-4. Hardware Fault Indication. Code Description The base unit Front End Processor (FEP) is not responding. Inconsistency in DPRAM protocol version. Turns to L and prompts the LOADER. Rebooting the Terminal Server (warm boot). High-rise FEP not responding. Jumper is set to Restore Factory defaults.
Page 24: 3.2 The Installation Process
ERVER Your package should contain the following items: • Terminal Server • This user manual If anything is missing or damaged, contact Black Box at 724-746-5500. 3.2.2 S ELECTING A OCATION Before installing the Terminal Server, verify that the chosen site meets the following requirements: •...
Page 25: Connecting Serial Devices To The Terminal
TERMINAL SERVERS 3.3.4 C ONNECTING ERIAL EVICES TO THE ERMINAL ERVER You may connect any RS-232/RS-423 device to any of the serial ports of the Terminal Server. This section describes the following procedures: connecting DCE and DTE devices, pin layouts of the RJ-45 connector, and RJ-45 to DB25 or DB9 conversions.
Page 26 TERMINAL SERVERS The RJ-45 Serial Port All the Terminal Servers have RJ-45 connectors, which operate as RS-232 (or RS-423) interfaces. Figure 3-2 describes the pin layout used in the RJ-45 ports. 1 2 3 4 5 6 7 8 1: Clear To Send (CTS) - input 2: Data Terminal Ready (DTR) - output 3: Transmit (TX+) 4: Transmit Return (TX-)
Page 27 TERMINAL SERVERS RJ-45 to DB25/DB9 (DTE) Conversion Table 3-5 describes the cable wiring required for connecting a DTE device (such as a terminal) with a RS-232 (DB9/25) port, to the Terminal Server’s RJ-45 serial port. Table 3-5. RJ-45 to DB25 (DTE) Conversion. RJ-45 Pin RJ-45 Signal Name DB25 pin...
Page 28 TERMINAL SERVERS RJ-45 to DB25/DB9 (DCE) Conversion The following table describes the cable wiring required for connecting a DCE device with an RS-232, DB25 port (such as a modem) to a Terminal Server’s RJ-45 serial port. Table 3-6. RJ-45 to DB25/DB9 (DCE) Conversion. RJ-45 Pin RJ-45 Signal Name DB25 pin...
Page 29: 3.3 Power On Procedure And Diagnostics
TERMINAL SERVERS The RJ-45 adapter does not support chassis ground but does supply signal ground to both pin 4 and pin 5. The reason for this is that on many DB25 devices, pin 1 is left unconnected. In other cases, signal ground and chassis ground are not electrically equivalent and connecting one to the other with a cross-cable can potentially damage both devices.
Page 30: 3.4 Restoring Factory Defaults
TERMINAL SERVERS 3.4 Restoring Factory Defaults In rare cases where access to the Terminal Server is not possible and the suspected cause may be incorrect configuration settings, or when you forget the privileged password, you need to be able to restore the device to factory defaults.
Page 31: 4- And 8-Port Terminal Servers
TERMINAL SERVERS 3.4.2 4- ERMINAL ERVERS 1. Turn the power off and unplug the terminal server power cable. 2. Remove the upper lid by unscrewing the fastener at the back end of the case. 3. Remove the printer-control printed circuit. This is the raised small printed circuit to which a gray ribbon cable is connected.
Page 32: Configuration Guide
TERMINAL SERVERS 4. Configuration Guide 4.1 Introduction This chapter explains how your system administrator can configure the Terminal Server. Each section describes the required configuration for a particular application of the Terminal Server. You only need to configure the Terminal Server once, since it remembers the configuration setup when it is powered off.
Page 33 TERMINAL SERVERS Table 4-1. Quick Look-Up Table. Environment Task Section Page TCP/IP Basic setup of the TCP/IP Configuring IP network interface of the parameters Terminal Server TCP/IP for Terminal Connecting a display Configuring Server mode terminal terminal ports Connecting a printer to the Adding TCP/IP parallel port printers...
Page 34: 4.2 Access To Management Commands
TERMINAL SERVERS 4.2 Access to Management Commands After the successful installation of the Terminal Server, the next step is the correct configuration of the unit so it can function as either a Terminal or Remote Access Server. The system administrator should connect to the system to configure the device.
Page 35: Using The Online Help
TERMINAL SERVERS Terminal Server SW V4.1.3, HW V1.0 Enter username> joe Local> SET PRIVILEGED Password> system Local> CHANGE SERVER PRIVILEGED PASSWORD Password> peace Verification> peace Local> Figure 4-1. Changing the System Password. NOTES The opening banner that appears when logging into the Server displays valuable information about the model type and current software version.
Page 36 TERMINAL SERVERS Local>HELP SET PORT SPEED PORTS SPEED (INPUT/OUTPUT) (nonprivileged) This nonprivileged option establishes the port speed in bits per second (bps). Valid speeds include: 75, 110, 134,150, 3000, 600, 1200, 1800, 2000, 2400, 4800, 9600, 19200,38400, 57600, and 115200. The default port speed is 9600.
Page 37 TERMINAL SERVERS • Automatic Command Completion (ACC)—While entering commands and not sure of the next allowed command keyword, one can enter a question mark ? in its place. The Terminal Server will respond immediately with all the possible parameters available from that particular point on.
Page 38 TERMINAL SERVERS ACC presents possible keywords as a combination of CAPITAL and small letters. It is enough to enter just that portion of the command seen in capital letters for it to be recognized by the Terminal Server. Therefore, INTERNET can be abbreviated to INT and PORTS to PO.
Page 39: Command Line Editing/Special Keys
TERMINAL SERVERS 4.2.3 C OMMAND DITING PECIAL Several special keys may be used to facilitate the command entry process. These keys can be used from any ANSI-compliant terminal. Table 4-2 displays these keys and their functions. Table 4-2. Special Keys Functions. Function Left and right arrow keys Moves the cursor along the current command...
Page 40: And For Lat Services
TERMINAL SERVERS 4.2.4 N LAT S AMING ONVENTIONS FOR ERMINAL ERVER AND FOR ERVICES Some commands require you to enter a name, whether it is that of the Terminal Server itself or a node, port, or service. All variable names must consist of a string of between 1 and 16 characters and cannot be abbreviated.
Page 41: Management Command Language
TERMINAL SERVERS 4.2.6 M ANAGEMENT OMMAND ANGUAGE Commands may be entered in the Terminal Server in Local Mode. The local mode is easily identified by the local prompt and cursor, Local>, which appears once a connection is established with the server from either a directly-connected terminal (in which case the operator needs to press the <Enter>...
Page 42 TERMINAL SERVERS Each command group affects either the Permanent Data Base (PDB) or the Operational Data Base (ODB) setup of the Terminal Server.The PDB resides in non-volatile memory so its contents are saved even without external power connected to the Terminal Server. The ODB, however, resides in regular RAM (Random Access Memory) which means that any changes made to the ODB will be lost if the Terminal Server is disconnected from its power source or is reinitialized in any other way.
Page 43: 4.2 Configuring Terminal Server Parameters
TERMINAL SERVERS 4.2 Configuring Terminal Server Parameters The initial setup of the IP environment in the Terminal Server involves several key steps: • Defining IP and/or LAT parameters—This involves the configuration of the basic IP and/or LAT parameters of the Server’s network port. For IP use, the IP address, subnet mask, gateway, DNS server need to be defined.
Page 44 TERMINAL SERVERS Step 2: Defines the Subnet Mask Information Statement 2 defines the subnet mask information. If your configuration does not use subnets, you will not need to define the mask value as the Terminal Server will define the correct mask value according to the class of IP address. Subnets divide one network into multiple smaller ones.
Page 45: Domain Name System (Dns) Server Setup
TERMINAL SERVERS Figure 4-5 shows a sample output of the SHOW commands (SHOW may be abbreviated as SH). Local> SH INTERNET Internet Address: 111.122.133.144 Subnet Mask: 255.255.255.0 Local> SH INTERNET GATEWAY Gateway: 111.122.133.155 Network: 255.255.255.0 Figure 4-5. SHOW Commands. 4.3.2 D (DNS) S OMAIN YSTEM...
Page 46: Using The Bootp Protocol
TERMINAL SERVERS Step 3: Verify the DNS Setup Use the Show Internet Name Resolution command. The following shows the output of these commands: Local> SHOW INTERNET NAME RESOLUTION Domain Name: MACHINE.TEST.COM Resolution Host Limit: 32 Resolution Time Limit: 4 Resolution Mode: Ordered Resolution Retry Limit: 3 Nameservers: 222.223.224.225...
Page 47: 4.4 Configuring Serial Ports
TERMINAL SERVERS The following is an example of configuring the Terminal Server to use BOOTP: 1. Local> DEFINE BOOTP ALWAYS 2. Local> DEFINE BOOTP SAVE 3. Local> DEFINE BOOTP VENDOR NONE Figure 4-9. Configuring the Server to use BOOTP. Step 1: Defining when to use BOOTP Statement 1 is used to configure the Terminal Server to make use of BOOTP features every time it is powered on or reset.
Page 48 TERMINAL SERVERS A common use for Terminal Server ports is for connecting local term- inals. There is an autobaud feature that attempts to configure a port with the correct baud rate by analyzing the first two <Enter> key presses made by the user before logging in.
Page 49: Port Naming Convention
TERMINAL SERVERS 4.4.1 P AMING ONVENTION Table 4-5 shows the names by which the PORT command refers to the serial and parallel ports of the Terminal Servers. Table 4-5. Port Naming Convention. Model Port Type Name LAT Name Single-Port Terminal Server Serial 4-Port Terminal Server Serial...
Page 50: 4.5 Configuring Terminal Ports
TERMINAL SERVERS 4.5 Configuring Terminal Ports The most common device used with the Terminal Server is the display terminal. This section describes the serial port and other settings necessary to configure the Terminal Server for connection of display terminals. Terminals may be connected to the Terminal Server using one of two methods: •...
Page 51 TERMINAL SERVERS Step 1: Define the Port Speed Statement 1 prevents the Terminal Server from sensing the speed used by the specified port automatically. Rather, it specifies a forced baud rate. NOTE The port characteristics must match the settings of the terminal in order for communications to work.
Page 52: Physical Characteristics-Modem Attached
TERMINAL SERVERS 4.5.2 P —M HYSICAL HARACTERISTICS ODEM TTACHED ERMINALS The example in Figure 4-12 shows how to define the physical characteristics of the serial port with a modem connection to a terminal. 1 Local> DEFINE PORT 3 AUTOBAUD DISABLED SPEED 19200 2 Local>...
Page 53: Operational Characteristics
TERMINAL SERVERS 4.5.3 O PERATIONAL HARACTERISTICS In addition to the physical characteristics defined in the previous section, various operational characteristics may be defined for the ports. Figure 4-13 shows examples that show several options that can be selected for a terminal. 1 Local>...
Page 54 TERMINAL SERVERS 3. Defining the Maximum Number of Concurrent Sessions Statement 3 limits the number of concurrent sessions permitted from the port, in this example to three. It allows the user to open up to three sessions, and to switch back and forth among them. The default is four sessions, but users on DEDICATED ports are automatically set to a limit of one.
Page 55 TERMINAL SERVERS • DEFINE PORT BROADCAST ENABLED/DISABLED—This allows/disallows the port to display messages from any other ports. Messages are sent using the BROADCAST command. (Default: ENABLED) • DEFINE PORT LOCK ENABLED/DISABLED—This allows/disallows a user to lock his terminal (Default: ENABLED) •...
Page 56: Using Special Characters
TERMINAL SERVERS 4.5.4 U SING PECIAL HARACTERS Certain specially-defined characters that are sent from a terminal attached to a port are acknowledged by the Terminal Server as commands and, therefore, are not forwarded to the user’s session. Occasionally, a specific application will require that one or more of these characters should nevertheless be forwarded since they have special meaning that can not be altered.
Page 57 TERMINAL SERVERS Table 4-6. Special Characters Functions. Function Default Key Command Resume connection with NONE PORT BACKWARDS SWITCH previous session Resume connection with NONE PORT FORWARD SWITCH next session on the session list Switch to local mode NONE PORT LOCAL SWITCH Send TELNET Abort Output PORT TELNET CLIENT AO (AO) request...
Page 58: Logical Characteristics-Lat
TERMINAL SERVERS 4.5.5 L —LAT OGICAL HARACTERISTICS The following example shows several logical options that are unique to the LAT environment. You can add them to a terminal definition. 1 Local> DEFINE PORT 1 DEFAULT PROTOCOL LAT 2 Local> DEFINE PORT 1 AUTHORIZED GROUPS ALL ENABLED 3 Local>...
Page 59: Accessing The Terminal Server From Remote/Network
TERMINAL SERVERS 4.6 Accessing the Terminal Server from Remote/Network (Reverse-Telnet) One can Telnet to the Terminal Server as well as to each of its specific ports, including its parallel port, without needing separate IP numbers for each. This allows you to share asynchronous devices such as modems and parallel devices such as printers.
Page 60 TERMINAL SERVERS Figure 4-15 shows a typical configuration of a Telnet listener. Port 1 is used in this example, but any port could be used, including the parallel port, which is referred to as PRINTER. 1 Local> DEFINE PORT 1 ACCESS REMOTE AUTOBAUD DISABLE SPEED 9600 1 Local>...
Page 61 TERMINAL SERVERS NOTE More than one serial port can be configured using this command (a rotary facility). If more than one port is defined and a session is started, the server will direct the data to the first available port among those defined.
Page 62: Configure Lat Services (Reverse Lat)
TERMINAL SERVERS 2. Connect the asynchronous device to the serial on which the listener function has been defined (port 1 in the above example). 3. From any Telnet client that can reach the Terminal Server, open a Telnet session with the Terminal Server. A typical command would be: telnet CS_IP_address TCP_PORT, where CS_IP_address is the IP address of the Terminal Server and TCP_PORT is the TCP port defined in the Telnet Listener command.
Page 63 TERMINAL SERVERS The following examples show: • Definition of a LAT service for accessing the Terminal Server. • Definition of a LAT service for connecting a printer. 4.7.1 D LAT S EFINE ERVICE FOR AN CCESS 1 Local> DEFINE PORT 1 ACCESS REMOTE 2 Local>...
Page 64: Define Lat Service For An Access Port
TERMINAL SERVERS 4.7.2 D LAT S EFINING A ERVICE FOR A ERIAL 3 Local> DEFINE SERVICE justaname PORTS 1 ENABLED Figure 4-18. LAT Service for a Serial Port. If Statement 3 from the previous example is replaced by the one above, associate it with serial port 1.
Page 65 TERMINAL SERVERS Host Definition Copy the downloaded PRTCP.C source and MAKEFILE executable files to your UNIX system and compile using the given MAKEFILE. You may have to change the library file you link with to fit your Operating System. Then, follow the relevant instructions for your UNIX to complete the procedure.
Page 66 TERMINAL SERVERS 5. When defining the queue name, choose a name other than the printer name. 6. Answer any other questions relevant to the printer attached. 7. Create a script file with the following script: #!/bin/sh /usr/lib/lpd/piobe $*|telnet IP_address_of_Passaport TCP_port This will be the “back-end shell script”...
Page 67 TERMINAL SERVERS 1. Define a printer using the program sam, specifying /dev/null as the printer device, or use the following command: /usr/lib/lpshut /usr/lib/lpadmin -pprinter_name -v/dev/null -minterface_script_file /usr/lib/lpsched Replace printer_name with a name of your choice. The above command will also create a script file at /usr/spool/interface/printer_name.
Page 68: Lat Printers
TERMINAL SERVERS 1. Define a printer using the sysadmsh program, specifying /dev/null as the printer device, or use the following command: /usr/lib/lpadmin -p printer_name -v /dev/n Replace printer_name by a name of your choice. 2. The following command will create a script file at /usr/spool/lp/admins/lp/interfaces/printer_name 3.
Page 69 TERMINAL SERVERS • Definition of a LAT Service function on the port where the printer is connected (refer to Defining LAT Services) • Definition of the printer in the host printing system The following describes the VMS procedure needed in order to define a Terminal Server port as a printer.
Page 70: Advanced Lat Definitions
TERMINAL SERVERS several configuration commands are available in order to enhance control over LAT functionality. The following list shows some of these commands. A complete list can be found in Chapters 6, 7, and 8. • DEFINE SERVER NAME—This allows you to change the Terminal Server default name which is CS_xxxxxxxxxxxx, where the 12 xs are the hexadecimal representation of the Terminal Server Ethernet MAC address.
Page 71: 4.11 Configuring Slip Ports
TERMINAL SERVERS 4.11 Configuring SLIP Ports The Terminal Server can be used to connect SLIP devices to an IP network. The SLIP (Serial Link Internet Protocol) protocol is a simple implementation of the IP protocol over Asynchronous links. The SLIP device can be a PC, workstation, router, or any other device connected through a serial port to the Terminal Server.
Page 72 TERMINAL SERVERS Step 3: Define the Port Flow Control We recommend that you disable flow control for directly-attached devices with SLIP connections, such as when a modem is used. Command 2 disables the flow control that is implemented by the SLIP itself. Note that the XON/XOFF mechanism must not be used for SLIP connections.
Page 73: 4.12 Configuring Ppp Ports
TERMINAL SERVERS 1 Local> DEFINE PORT 3 SLIP COMPRESSION ENABLED 2 Local> DEFINE PORT 3 SLIP COMPRESSION AUTOCOMPRESS 3 Local> DEFINE PORT 3 SLIP COMPRESSION STATES 16 Figure 4-21. Configuration of a CSLIP Port. Step 1: Define the Port Characteristics Statements 1 and 2 set the post-SLIP mode as CSLIP.
Page 74 TERMINAL SERVERS the IP Control Protocol (IPCP) to establish and configure the network-layer protocol. The PPP device can be a PC, workstation, router or any other device connected through a serial port to the Terminal Server. (For detailed information on both LCP and IPCP, refer to RFC1331 and RFC1332—both available on the Internet.) Any PPP device must be assigned a unique IP address.
Page 75 TERMINAL SERVERS Step 2: Define Port as Dedicated PPP and Enable it Statement 2 specifies that the port will be attached automatically as a PPP host when the user logs on to the Terminal Server. DEDICATED prevents the user from using the port as a terminal port and negates the need for any character- mode communication—except the user name and password (if needed).
Page 76: Using Advanced Ppp Parameters
TERMINAL SERVERS to compress PPP fields. It also forces the node to use a pre-configured IP address on the port. 1 Local> DEFINE PORT 1 CHARACTER 8 PARITY EVEN STOP 1 2 Local> DEFINE PORT 1 PPP IPCP COMPRESSION ENABLED 3 Local>...
Page 77 TERMINAL SERVERS Statement 6 says that the Terminal Server should invoke PPP Link Control Protocol (LCP) frames after the port is logged on. In this example, the LCP Configuration request starts after the modem is connected and DSR is active. Statement 7 deals with changing the default Async-Control-Character-Map (ACCM) and causes the Terminal Server to perform byte-stuffing on the bytes representing XON/XOFF.
Page 78: Verifying Ppp Port Configuration And Status
TERMINAL SERVERS The following example displays the port’s LCP configuration. Local> SHOW PORT 1 LCP CHARACTERISTICS Port 1: PPP 1 Server: CS_0020d207090 LCP Characteristics: LCP: Enabled Passive Open: Enabled Restart Timer: 3 seconds Max Configure: 10 transmissions Max Terminate: 2 transmissions Max Failure: 10 transmissions LCP Options:...
Page 79 TERMINAL SERVERS To find out the current state of a link, you can check the LCP status: Local> SHOW PORT 1 LCP STATUS Port 1: PPP 1 Server: CS_0020d2070790 LCP Status: State: Opened Authentication: None LCP Options: Local: MRU: 1500 Character Map: FFFFFFFF Authentication:...
Page 80 TERMINAL SERVERS The negotiation of IPCP starts after the Link Layer is established and the LCP state is OPENED. The following example asking to verify the IPCP configuration displays an IPCP valid configuration. Local> SHOW PORT 1 ICPC CHARACTERISTICS Port 1: PPP 1 Server: CS_0020d2070790 IPCP Characteristics:...
Page 81: 4.13 Configuring Security Options
TERMINAL SERVERS 4.13 Configuring Security Options 4.13.1 U ECURITY EVELS Three levels of security are available for Terminal Server ports: • Privileged status—The user at a privileged port has access to the entire Terminal Server command set including commands that manage the Terminal Server, its ports, its sessions, and its services.
Page 82: Conventions For Specifying Passwords
TERMINAL SERVERS 4.13.2 C ONVENTIONS FOR PECIFYING ASSWORDS Unless otherwise stated, all passwords consist of between one and sixteen ASCII characters. When specifying passwords in Terminal Server commands, either enclose the password in quotation marks and include it in the command line, or enter the command without the password and let the Terminal Server prompt you for it.
Page 83 TERMINAL SERVERS 4.13.3 U SING A ENERAL ASSWORD A general password may be defined for the Terminal Server and both enabled or disabled per port. If a serial port is defined with the PASSWORD characteristic, then each log-in operation to this port will prompt the user (with a #) to enter a valid general password.
Page 84: Using A General Password
TERMINAL SERVERS Terminal Servers working with modems operate as RADIUS clients. The RADIUS client sends authentication requests to the RADIUS server which responds accordingly. The protocol defines two entities: • RADIUS Client—a device that needs authentication services. The Terminal Server, for example, functions as a RADIUS client. •...
Page 85 TERMINAL SERVERS How it Works: User Authentication with RADIUS RADIUS authenticates users through a series of communications between the client and the server. Once a user is authenticated, the client provides that use with access to the appropriate network services. Host Terminal Server...
Page 86 TERMINAL SERVERS A typical description of such a process involves the following: • Using a modem, the user dials-in to a modem connected to the Terminal Server. Once the modem connection is completed, the Terminal Server prompts the user for a name and password. •...
Page 87: Implementing Radius Authentication
TERMINAL SERVERS 4.14.1 I RADIUS A MPLEMENTING UTHENTICATION The Terminal Server must be configured with the parameter of at least one (primary) RADIUS server in order to use the RADIUS authentication. The following example configures the Terminal Server to use RADIUS: 1 Local>...
Page 88: Using Pap And Chap
TERMINAL SERVERS Statement 3 enables RADIUS authentication on PORT number 1. If AUTHENTICATION is enabled globally, as with statement 4, the port can only be logged in to by a user with a valid user name and password. A valid user name is a user name that has an entry in the RADIUS server “users”...
Page 89 TERMINAL SERVERS • PAP—Password Authentication Protocol is used to authenticate user on the same principle as the standard login. The client authenticates itself to the server by sending a user name (and optionally a password) to the server. The server then compares it with its hidden database. The Terminal Server checks the data in its RADIUS server database (see Authentication—Using Radius).
Page 90: Accounting Using Radius
TERMINAL SERVERS RADIUS A MPLEMENTING CCOUNTING The following example configures the Terminal Server to register accounting information: 1 Local> DEFINE ACCOUNTING PRIMARY ADDRESS 110.111.112.113 Local> DEFINE ACCOUNTING ALTERNATE ADDRESS 111.112.113.114 2 Local> DEFINE ACCOUNTING PRIMARY SECRET acc-secret 3 Local> DEFINE ACCOUNTING ENABLED Figure 4-33.
Page 91 TERMINAL SERVERS Client-Id=111.122.133.144 Client-Port-Id=3 Acct-Status-Type=Start Acct-Session-Id=”IP (111.122.133.144)-Session (004)” Mon Jul 8 09:17:12 1996 User-Name=”andy” Client-Id=111.122.133.144 Client-Port-Id=3 Acct-Status-Type=Stop Acct-Session-Id=”IP (111.122.133.144)-Session (004)” Mon Jul 8 09:18;35 1996 User-Name=”john” Client-Id=111.122.133.144 Client-Port-Id=6 Acct-Status-Type=Start Acct-Session-Id=”IP (111.122.133.144)-Session (004)” Mon Jul 8 09:25:55 1996 User-Name=”john” Client-Id=111.122.133.144 Client-Port-Id=6 Acct-Status-Type=Stop Acct-Session-Id=”IP (111.122.133.144)-Session (004)”...
Page 92: Configuring The Snmp Agent
TERMINAL SERVERS acquire and initialize the configuration of the Terminal Server, check the different interface counters and also to get TRAPs on several Terminal Server special events. The following example shows how to configure a Terminal Server to work with an NMS station. 1 Local>...
Page 93 TERMINAL SERVERS to send TRAPs on these events to all stations configured as in statement 1. 4: Enabling SNMP Statement 5 configures the Terminal Server to support SNMP frames. If SNMP is disabled, no TRAPs are sent and all SNMP requests are ignored. (MIB UPPORTED ANAGEMENT...
Page 94: User Commands And Applications
TERMINAL SERVERS Terminal Server is important to comprehend and a correct grasp of these concepts will allow trouble-free and effortless operations. Certain control characters allow the user to circulate between sessions and to control each one in turn. These include controls for breaking out of sessions, terminating sessions, and switching between active sessions.
Page 95: 5.2 Examples Of Common Applications
TERMINAL SERVERS RESUME <x>, issued from the local prompt, switches the user back to the specified session. One can either resume back to the default current session from which one issued the break command, or to another specified session x, from the list of active sessions.
Page 96 TERMINAL SERVERS logs into port 3 with two <Enter> key-presses. Local> DEFINE PORT 3 USERNAME “ALEX” Local> DEFINE PORT 3 DEFAULT PROTOCOL TELNET Local> DEFINE PORT 3 TELNET CLIENT TERMTYPE VT100 Local> DEFINE PORT 3 DEDICATED 111.123.143.111 Local> DEFINE PORT 3 VERIFICATION DISABLE Figure 5-1.
Page 97 TERMINAL SERVERS LAN (either local or remote) using a Terminal Server. On the one site, the operator has a terminal connected via another Terminal Server to a LAN. Both LANs are connected to each other via a pair of routers and a WAN. At the local site, the user sets up a dedicated Telnet as follows: Local>...
Page 98 TERMINAL SERVERS Local> DEFINE PORT n AUTOBAUD DISABLE SPEED speed Local> DEFINE PORT n ACCESS REMOTE Local> DEFINE PORT n TELNET server NEW LINE TO TERMINAL <CR> Local> DEFINE PORT n TELNET server {ip}{ayt}{eor}{ao}{nop}NONE* Local> INIT DELAY 0 Figure 5-4. Remote Site Telnet Setup. *Each in a separate command line.
Page 99 TERMINAL SERVERS A sample script to connect to the Terminal Server is as follows: proc main delay 1 transmit “^M” delay 1 transmit “^M” wait for “name>” transmit $USERID transmit “^M” wait for “Local>” transmit “c ppp^M” endproc As a RADIUS client, the 8-Port Terminal Server can use either PAP or CHAP for password verification.
Page 100 TERMINAL SERVERS the user must initialize it manually by typing: Local> Connect PPP Additional Note for Dedicated PPP: • A dedicated PPP port will transmit negotiation requests upon sensing a change in the modem’s DSR signal. This DSR assertion may often cause the modem to disconnect as it receives data from the RS-232C while it is still in negotiation.
Page 101: Command Descriptions
TERMINAL SERVERS 6. Command Descriptions This chapter describes the Terminal Server commands that are not explained in one of the following command categories: SET/DEFINE/CHANGE (Chapter 7), SHOW/LIST (Chapter 8), or CLEAR/PURGE (Chapter 9). BACKWARDS (secure) BACKWARDS This command (available to all users) resumes the session preceding your current session in the list produced by the SHOW SESSIONS command.
Page 102: Close Port (Secure)
TERMINAL SERVERS • PASSALL or PASTHRU mode is currently set as an active Telnet session on the port. For further reference, see the SET SESSION Telnet command. • The port is locked or logged out. • Output flow control from the Terminal Server to the port is turned off. Restriction: •...
Page 103: Connect (Secure)
TERMINAL SERVERS CONNECT (secure) [ip-address CONNECT [host-name [service name This secured command requests a connection using the default protocol set for this port (refer to DEFINE PORT DEFAULT PROTOCOL). The destination part is not required—if missing, the preferred destination will be used (refer to DEFINE PORT PREFERRED).
Page 104: Connect Any (Secure)
TERMINAL SERVERS NODE node-name Indicates a particular service node to which you want to connect. The default node is the highest-rated node that offers the service. DESTINATION port-name Specifies a particular Terminal Server port to which you want to connect. The default port you are connected to is the first available port offering the service.
Page 105: Connect Ppp (Secure)
TERMINAL SERVERS Restriction: • This command cannot be used if AUTOCONNECT is ENABLED on the port. Example Local> CONNECT ANY JUMBO This command checks the host JUMBO to determine whether the Telnet protocol or the LAT protocol is used and then connects to the host JUMBO. CONNECT PPP (secure) CONNECT [PPP] This secure command specifies that a PPP session will be started on the...
Page 106: Connect Telnet/Open/Telnet (Secure)
TERMINAL SERVERS Restrictions: • The port must have SLIP enabled. • Only one SLIP or PPP session per port is allowed at any given time. • During a SLIP session, all switch characters are passed on as data. Example Local> CONNECT SLIP This command starts a SLIP session on the current port.
Page 107 TERMINAL SERVERS The internet address of a host. The address must be specified in dot- notation (for example, 191.34.75.4). host-name The ip domain name of a host. The name may be absolute (e.g., don.sales.radlinx.com.) or relative (e.g., sales.radlinx). [PORT] tcp-port The TCP port number on an internet host.
Page 108: Disconnect/Close (Secure)
TERMINAL SERVERS DISCONNECT/CLOSE (secure) {DISCONNECT}{ALL {CLOSE }{SESSION session-number } This command (available to all users) terminates all interactive sessions or a specific session. For more information, refer to the DISCONNECT/CLOSE PORT command (page 109). Terminates all sessions on a port. SESSION session-number Closes a particular session.
Page 109: Forwards (Secure)
TERMINAL SERVERS FORWARDS (secure) FORWARDS This command connects you to the session that follows your current session in the session list. The sessions list can be displayed with the SHOW SESSIONS command. The FORWARDS command allows you to continue the session with the next higher session number than your current session.
Page 110: Initialize (Privileged)
TERMINAL SERVERS INITIALIZE (Privileged) [DELAY minutes INITIALIZE [SERVER][UPDATE FLASHROM] [DIAGNOSE [DISABLE This privileged command reinitializes the Terminal Server. By default, the Terminal Server will be reinitialized about 1 minute after this command is processed. You can also specify no delay, or you can specify a longer delay in order to perform an orderly shutdown.
Page 111: Initialize Cancel (Privileged)
TERMINAL SERVERS Example Local> INITIALIZE DELAY 5 This command specifies initialization of the Terminal Server after 5 minutes have elapsed. Restrictions: • The INITIALIZE UPDATE command requires the FLASH product option. • The INITIALIZE UPDATE command always executes on physical port #1 of the Terminal Server.
Page 112: Lock (Secure)
TERMINAL SERVERS LOCK (secure) LOCK This command (available to all users) prevents unauthorized use of your terminal in your absence. When the Terminal Server characteristic LOCK and the SET PORT characteristic LOCK are ENABLED, the Terminal Server responds to a LOCK command by prompting for a lock password. You can specify a password ranging from 1 to 16 characters.
Page 113: Logout (Secure)
TERMINAL SERVERS LOGOUT (Secure) [ALL LOGOUT[PORT [port-list [port-number This command logs out a port on the Terminal Server and terminates any sessions associated with the port. The port characteristics in the port’s operational database are reset to the values defined in the permanent database when you log out a port.
Page 114: Open/Telnet (Secure)
TERMINAL SERVERS OPEN/TELNET (secure) For information on this command, refer to the CONNECT Telnet/OPEN/Telnet command (page 107). PING/TEST INTERNET (nonprivileged) {PING }{host-name } {TEST INTERNET}{inet-address} This nonprivileged command tests end-to-end communication between the Terminal Server and the specified target over an internet-protocol network. The target can be an internet domain name or an internet address.
Page 115: Remove Queue (Privileged, 4- And 8-Port Models)
TERMINAL SERVERS Example Local> PING 136.3.41.20 This command tests internet connectivity to the IP address 136.3.41.20. REMOVE QUEUE (Privileged , 4- and 8-Port models only) {ALL {ENTRY entry-number } REMOVE QUEUE {NODE node-name {SERVICE service-name This privileged command removes queued LAT connection request (for remote access to Terminal Server ports) from the Terminal Server queue.
Page 116: Restore Defaults (Privileged)
TERMINAL SERVERS RESTORE DEFAULTS (privileged) RESTORE DEFAULTS Restores factory defaults. RESUME (secure) RESUME [SESSION session-number] Resumes an interactive session from local mode. This command is available to all users. SESSION session-number Specifies the session to be resumed. Your current session is resumed by the Terminal Server when this parameter is omitted.
Page 117: Send Telnet (Secure)
TERMINAL SERVERS SEND TELNET (secure) {AYT {BREAK (BRK) {EOR Send Telnet {NOP {REQUEST STATUS {RESUME OUTPUT {SYNCH This command (available to all users) calls up the corresponding Telnet function on the current Telnet session. AO (Abort Output) Aborts any output en route to the user’s terminal. AYT (Are-You-There) Requests a response from the remote Telnet implementation.
Page 118: Test Internet
TERMINAL SERVERS RESUME OUTPUT Resumes a session after an Abort Output signal has been sent and the port hangs. Restrictions: • The session must be resumed to see an AYT response. • The session must be resumed to view a REQUEST STATUS response. •...
Page 119: Test Port (Secure)
TERMINAL SERVERS TEST PORT (Secure) TEST [PORT port-number][COUNT {n }][WIDTH n]... {NONE}] ...[LOOPBACK{EXTERNAL}] {INTERNAL}] Tests a port on the Terminal Server. The Terminal Server sends a stream of characters to the specified port. Problems with the terminal or with the connection of the port to the Terminal Server are seen as irregularities in the rotating ASCII pattern.
Page 120: Test Service (Privileged, 4- And 8-Port Models Only)
TERMINAL SERVERS TEST SERVICE (Privileged , 4- and 8-Port models only) [NODE node-name] TEST SERVICE service-name [DESTINATION port-name] [COUNT{n {NONE} This privileged command tests the end-to-end Terminal Servers over the LAT network. The test is performed between the Terminal Server and a service node.
Page 121: Zero Counters (Privileged)
TERMINAL SERVERS ZERO COUNTERS (Privileged) [ALL [INTERNET[NAME RESOLUTION ZERO [COUNTERS] [NODE node-name [PORT [ALL ][SLIP ] [SNMP [port-list ][PPP ] This privileged command resets counters for the Terminal Server . Entering this command without parameters zeroes only the Terminal Server counters. This command does not zero the uptime counter in displays.
Page 122 TERMINAL SERVERS SLIP Clears the SLIP counters for the specified port. SNMP Clears all SNMP error and access counters. Examples Local> ZERO INTERNET Clears the Terminal Server internet counters. Local> ZERO PORT 5 SLIP Clears the SLIP-specific counters for port 5. Local>...
Page 123: Set/Define/Change Commands
TERMINAL SERVERS 7. SET/DEFINE/CHANGE Commands This chapter describes the SET, DEFINE, and CHANGE commands. SET commands change characteristics and options stored in the Terminal Server’s operational database. DEFINE commands change characteristics stored in the Terminal Server’s permanent database. CHANGE commands change characteristics stored in the Terminal Servers permanent and operational databases.
Page 124: Accounting Address (Privileged)
TERMINAL SERVERS When the Terminal Server is communicating with an ACCOUNTING server, the MD5 algorithm is used to encrypt information and verify responses from the ACCOUNTING server. The MD5 algorithm requires that a secret (password) will be shared at both sides communicating with each other—the Terminal Server and the ACCOUNTING server in this case.
Page 125: Accounting Retries (Privileged)
TERMINAL SERVERS ACCOUNTING RETRIES (privileged) {SET {DEFINE }ACCOUNTING RETRIES count {CHANGE This privileged command specifies the number of times the Terminal Server will retry to send a message to the accounting server. Once this count is reached, the Terminal Server will either try to use the alternate server, or will reject the user login request.
Page 126: Accounting Timeout(Privileged)
TERMINAL SERVERS ACCOUNTING TIMEOUT(privileged) {SET {DEFINE }ACCOUNTING TIMEOUT seconds {CHANGE This privileged command specifies the timeout value, inseconds, after which the Terminal Server will re-send an ACCOUNTING request to the ACCOUNTING server. seconds This parameter specifies that the number of seconds after which the Terminal Server will re-send its request to the ACCOUNTING server.
Page 127: Authentication Address
TERMINAL SERVERS The username and password are either requested by the a prompt (for users accessing the server in terminal mode), or by using PPP PAP or CHAP protocols. Please note that each port should be defined with PORT AUTHENTICATION ENABLED in order for the authentication process to take place.
Page 128: Authentication Retries
TERMINAL SERVERS AUTHENTICATION RETRIES (privileged) {SET {DEFINE }AUTHENTICATION RETRIES count {CHANGE This privileged command specifies the number of times the Terminal Server will retry to send a message to the authentication server. Once this count is reached, the Terminal Server will either try to use the alternate server (if configured), or will reject the user login request.
Page 129: Authentication Timeout (Privileged)
TERMINAL SERVERS AUTHENTICATION TIMEOUT (privileged) {SET {DEFINE }AUTHENTICATION TIMEOUT seconds {CHANGE This privileged command specifies the timeout value, in seconds, after which the Terminal Server will re-send an authentication request to the authentication server. seconds This parameter specifies the number of seconds after which the Terminal Server will re-send its request to the authentication server.
Page 130: Bootp (Privileged)
TERMINAL SERVERS BOOTP (privileged) {SET {DISABLE {DEFINE }BOOTP{ALWAYS }{SAVE } {CHANGE {ONZERO }{NOSAVE This privileged command designates the use of a BOOTP protocol. The BOOTP protocol can be used to find the Terminal Server’s Internet address from a BOOTP server. The BOOTP server contains a data base to associate an Ethernet MAC address with an IP address.
Page 131: Bootp Vendor (Privileged)
TERMINAL SERVERS BOOTP VENDOR (privileged) {SET {CMU } {DEFINE }BOOTP VENDOR{DHCP} {CHANGE {NONE} This privileged command specifies BOOTP protocol extensions to be used for the BOOTP request and reply. The extensions enable the Terminal Server to obtain the gateway (default router) and netmask values from the BOOTP server.
Page 132 TERMINAL SERVERS ip-address The internet address must be a valid internet address of the form n.n.n.n, where n is a decimal number ranging from 0 to 255. NONE Entering the DEFINE INTERNET ADDRESS NONE command erases the previously defined internet address from the Terminal Server permanent database.
Page 133: Internet Gateway (Privileged)
TERMINAL SERVERS INTERNET GATEWAY (privileged) {SET {DEFINE }INTERNET GATEWAY ip-address... {CHANGE HOST[ADDRESS]ip-address ...[NETWORK{net-address[[SUBNET]MASK submask]}} This privileged command enters a gateway into the Terminal Server gateway database. ip-address Indicates the internet address of the gateway being defined. This address must be located in the same network as the Terminal Server. It must be a valid internet address in the form n.n.n.n, where n is a decimal number ranging from 0 to 255.
Page 134 TERMINAL SERVERS Restrictions: • You cannot define more than 8 gateway entries in the permanent database. • You must use a separate SET/DEFINE/CHANGE INTERNET GATEWAY command to assign the same ip-address to each network. You may use the SET/DEFINE/CHANGE command with various network addresses for the same gateway (using the same internet address).
Page 135: Internet Host (Privileged)
TERMINAL SERVERS INTERNET HOST (privileged) {SET {DEFINE } INTERNET HOST host-name ADDRESS ip-address {CHANGE This is a privileged command that enters internet hosts into the Terminal Server domain name system (DNS) database local HOSTS table. host-name Indicates an internet host name. The name length may range from 1 to 50 characters.
Page 136: Internet Name Resolution (Privileged)
TERMINAL SERVERS INTERNET NAME RESOLUTION (privileged) {DOMAIN{domain {DEFAULT }} {LOCAL {SET }INTERNET NAME RESOLUTION {MODE{REMOTE {DEFINE} {ORDERED {CHANGE} {RETRY LIMIT value {TIME LIMIT value The parameters associated with the internet domain name system (DNS) function are modified in the Terminal Server database by this privileged command.
Page 137: Internet Nameserver (Privileged)
TERMINAL SERVERS TIME LIMIT value Indicates the minimum delay (in seconds) between successive retries of queries to name servers to resolve a DNS name. The allowable range is 1-10. The default value is 4. Example Local> SET INTERNET NAME RESOLUTION RETRY LIMIT 5 This command sets a limit of 5 DNS queries to the same name server.
Page 138: Port (Secure)
TERMINAL SERVERS Example Local> DEFINE INTERNET NAMEserver aristo.tau.ac.il ADDRESS 192.213.45.13 This command adds a DNS name server whose IP address is 192.213.45.13 to the Terminal Server permanent database. PORT (secure) {SET [ALL ] characteristic [characteristic(s)] {DEFINE } PORT [port-list {CHANGE This command modifies port characteristics.
Page 139: Port Access (Privileged)
TERMINAL SERVERS • You cannot modify remote management port characteristics. Example Local> SET PORT 8 AUTHORIZED 1,2,6-19,25 ENABLED SESSION LIMIT 3 The parameters in this command influence the way port 8 can be used in service mode. When the port is logged out, these settings revert to their original values.
Page 140: Port Authentication (Privileged)
TERMINAL SERVERS • You cannot use the SET or CHANGE port-list ACCESS DYNAMIC or LOCAL command if any port in the port-list is defined as REMOTE or NONE. PORT AUTHENTICATION (privileged) {SET {DEFINE }PORT AUTHentication{ENABLED {CHANGE {DISABLED This privileged command specifies whether the user login request to this port will be authenticated.
Page 141: Port Authorized Groups (Privileged, 4- And 8-Port Models Only)
TERMINAL SERVERS PORT AUTHORIZED GROUPS (privileged , 4- and 8-port models only) {SET {DEFINE} PORT AUTHORIZED [GROUPS]{group-list }{ENABLED} {CHANGE} {ALL }{DISABLED} This is a privileged command that enables you to authorize groups of LAT service nodes to be available to the port. The default is group 0 ENABLED and all other groups DISABLED.
Page 142: Port Autobaud (Privileged)
TERMINAL SERVERS PORT AUTOBAUD (privileged) {SET {DEFINE} PORT AUTOBAUD{ENABLED} {CHANGE} {DISABLED} This is a privileged command that determines whether the Terminal Server automatically detects the speed, parity, and character size of the port device during login. This option also sets the Terminal Server port characteristics to correspond with the port device (default: ENABLED).
Page 143: Port Backwards Switch (Secure)
TERMINAL SERVERS PORT BACKWARDS SWITCH (secure) {SET {DEFINE } PORT BACKWARDS[SWITCH]{character {CHANGE {NONE This option sets a switch character that permits resumption of a previous session in the session list without returning to local mode. You can clear an existing switch by specifying NONE (default). This option is available to all users.
Page 144: Port Broadcast (Nonprivileged)
TERMINAL SERVERS PORT BROADCAST (nonprivileged) {SET {ENABLED {DEFINE } PORT BROADCAST {DISABLED This is a nonprivileged option that indicates if a port can receive a message sent from another port. The default condition is ENABLED. PORT CHARACTER SIZE (nonprivileged) {SET {DEFINE }PORT CHARACTER [SIZE] {CHANGE...
Page 145 TERMINAL SERVERS service-name Specifies the name of the dedicated LAT service. NODE node-name Indicates a LAT service node from which the dedicated service is available. DESTINATION Sets a specific port for connection. host-name [PORT tcp-port] Specifies the internet host name or address, and an optional Telnet TCP port number.
Page 146: Port Default Protocol (Privileged)
TERMINAL SERVERS PORT DEFAULT PROTOCOL (privileged) {ANY {AUTOLINK {SET {LAT 4- and 8-Port models only} {DEFINE }PORT DEFAULT [PROTOCOL] {PPP {CHANGE {SLIP {Telnet This option specifies the default protocol for the port. Telnet is the factory- set default. The default protocol clarifies commands when a protocol option has not been indicated.
Page 147: Port Dsrlogout (Privileged)
TERMINAL SERVERS • Set the PORT AUTOCONNECT characteristic to DISABLED when the DEFAULT PROTOCOL is set to ANY. • Only privileged users can use the DEFINE and CHANGE commands; however, all users can use the SET command. PORT DSRLOGOUT (privileged) DSRLOGOUT {ENABLED} {DISABLED} This is a privileged option that indicates whether a Terminal Server should...
Page 148: Port Dtrwait (Privileged)
TERMINAL SERVERS PORT DTRWAIT (privileged) {SET {DEFINE }PORT DTRWAIT{ENABLED} {CHANGE {DISABLED} This is a privileged option that indicates if the Terminal Server will use the DTR to indicate whether the port is being used by the Terminal Server for ports with ACCESS=REMOTE (e.g., ports with TELNET LISTENER). These modifications take effect when you log out of the port.
Page 149: Port Failover (Nonprivileged, 4- And 8-Port)
TERMINAL SERVERS PORT FAILOVER (nonprivileged , 4- and 8-port models only) {SET {DEFINE }PORT FAILOVER{ENABLED} {CHANGE {DISABLED} This is a nonprivileged option that indicates that upon disconnection from a LAT service, an automatic attempt will be made to connect to another node that provides the service.
Page 150: Port Forward Switch (Secure)
TERMINAL SERVERS DISABLED Specifies no flow control. PORT FORWARD SWITCH (secure) {SET {DEFINE }PORT FORWARD [SWITCH]{character} {CHANGE {NONE } A switch character option permits continuation of the next session in your session list without reverting to local mode. NONE (the default) clears an existing switch.
Page 151: Port Inactivity Logout (Privileged)
TERMINAL SERVERS Restriction: • GROUPS can only be specified with the SET PORT command. PORT INACTIVITY LOGOUT (privileged) {SET {DEFINE }PORT INACTIVITY [LOGOUT]{ENABLED } {CHANGE {DISABLED} This privileged option indicates whether the Terminal Server logs out a port automatically after an inactive period. The Terminal Server automatically logs out the port after the time-out period if ACCESS LOCAL is specified at a port and the local terminal user does not use the port.
Page 152: Port Limited View (Privileged)
TERMINAL SERVERS PORT LIMITED VIEW (privileged) {SET {DEFINE }PORT LIMITED [VIEW]{ENABLED } {CHANGE {DISABLED} This is a privileged option that specifies whether a nonprivileged port is prevented from listing LAT nodes, LAT services, or internet databases such as internet host, ARP entries, and gateways. The default is DISABLED. PORT LOCAL SWITCH (secure) {SET {DEFINE...
Page 153: Port Lock (Privileged)
TERMINAL SERVERS PORT LOCK (privileged) {SET {DEFINE }PORT LOCK{ENABLED } {CHANGE {DISABLED} This privileged option indicates if the LOCK command is accessible to a port user. When the LOCK characteristic is ENABLED on a port as well as on the Terminal Server, the port user can specify LOCK to deny access to the terminal where the command is entered.
Page 154: Port Parity (Nonprivileged)
TERMINAL SERVERS PORT PARITY (nonprivileged) {EVEN {SET {ODD {DEFINE }PORT PARITY {MARK {CHANGE {SPACE } {NONE } A nonprivileged option that specifies the port parity as EVEN, ODD, MARK, SPACE, or NONE (default). Restriction: • PARITY cannot be changed for a port that is currently in the AUTOBAUD process.
Page 155: Port Password (Privileged)
TERMINAL SERVERS PORT PASSWORD (privileged) {SET {DEFINE }PORT PASSWORD{ENABLED } {CHANGE {DISABLED} This privileged option determines whether a password is necessary for a user to login to the Terminal Server. Setting the Terminal Server characteristic LOGIN PASSWORD specifies the login password. The default is DISABLED.
Page 156: }Port[Ppp]Ipcp
TERMINAL SERVERS PORT PPP IPCP {SET {DEFINE }PORT[PPP]IPCP {ENABLED } {CHANGE {DISABLED} This option controls whether the IPCP negotiation is allowed on the link. Using this option, a manager can “bounce” the link to pick up new locally configured parameters. The PORT PPP IPCP command can be used to debug IPCP setups.
Page 157: Port Ppp Ipcp Compression
TERMINAL SERVERS It is possible that the link will come up if these address negotiations fail. However, each peer may have inconsistent knowledge about the system with which it is exchanging IP datagrams. The Terminal Server assumes that the peer has the address currently set up on the port if the link is open.
Page 158: Port Ppp Ipcp Compression States
TERMINAL SERVERS PORT PPP IPCP COMPRESSION STATES {SET {DEFINE }PORT[PPP]IPCP COMPRESSION STATES "number" {CHANGE This option specifies the number of TCP connections the Terminal Server can decompress from the peer at any given time. The range of values is 4-16. The default value is 16. Restrictions: •...
Page 159: Port Ppp Lcp Acfc
TERMINAL SERVERS PORT PPP LCP {SET {DEFINE }PORT[PPP]LCP {ENABLED } {CHANGE {DISABLED} This option controls whether the LCP negotiation is allowed on the link. To do this, DISABLE and ENABLE LCP for a running PPP session. The LCP characteristic will generally be ENABLED, so that LCP starts the link normally.
Page 160: Port Ppp Lcp Authentication (Privileged)
TERMINAL SERVERS PORT PPP LCP AUTHENTICATION (privileged) {SET {DEFINE }PORT[PPP]LCP ACFC {ENABLED } {CHANGE {DISABLED} This privileged command specifies whether the Terminal Server requires the peer to use the PPP PAP protocol to authenticate itself. The peer must provide the Terminal Server with the LOGIN password if PAP is specified. Restrictions: •...
Page 161: Port Ppp Lcp Mru
TERMINAL SERVERS PORT PPP LCP MRU {SET {DEFINE }PORT[PPP]LCP MRU "number" {CHANGE This option specifies the size in bytes of the maximum receive units (MRU) that the Terminal Server wants to negotiate for the link. This command tells the peer what the server wants to see as an upper limit to packet size. By setting the MRU size you can tune the link performance.
Page 162: Port Ppp Lcp Pfc
TERMINAL SERVERS PORT PPP LCP PFC {SET {DEFINE }PORT[PPP] LCP PFC {ENABLED } {CHANGE {DISABLED} To identify the type of packet being sent, PPP uses a two-character protocol field. This field may be compressed into a single byte and still uniquely identify the protocol type.
Page 163: Port Ppp Lcp/Ipcp Maxfailure
TERMINAL SERVERS PORT PPP LCP/IPCP MAXFAILURE {SET {DEFINE }PORT [PPP] {LCP }MAXFAILURE nn {CHANGE {IPCP} This option determines how many times LCP, IPCP, or ATCP will send a negative acknowledgment message (NAK) for the peer’s proposed options before deciding to start rejecting the problem options (the options whose values the LCP/IPCP finds objectionable).
Page 164: Port Ppp Lcp/Ipcp Restart
TERMINAL SERVERS PORT PPP LCP/IPCP RESTART {SET {DEFINE }PORT [PPP] {LCP }RESTART nn {CHANGE {IPCP} This option determines how many seconds there will be between an LCP, IPCP, or ATCP configure terminate retransmit while LCP/IPCP configuration or link termination is taking place. For example, the LCP will send one configure request packet to the peer and will wait a period of time for a response.
Page 165: Port Queuing (Nonprivileged, 4- And 8-Port Only)
TERMINAL SERVERS Specifies the internet host name or internet host address to which you want to connect. NODE node-name Sets a particular LAT service node to which you want to connect. tcp-port Specifies the optional Telnet/TCP port number. DESTINATION Indicates a particular port to which you want to connect. port-name To set the port’s default protocol to match the protocol (Telnet or LAT) of the preferred service, use the DEFINE PORT command.
Page 166: Port Remote Modification (Nonprivileged, 4- And 8-Port Models Only)
TERMINAL SERVERS PORT REMOTE MODIFICATION (nonprivileged, 4- and 8-port models only) {SET {DEFINE }PORT REMOTE [MODIFICATION]{ENABLED } {CHANGE {DISABLED} This nonprivileged option determines whether a suitable LAT service node can change port characteristics (e.g. SPEED, CHARACTER SIZE, PARITY, and LOSS NOTIFICATION) to correspond to the port characteristics of a remote device on the Terminal Server.
Page 167: Port Signal Check (Privileged)
TERMINAL SERVERS PORT SIGNAL CHECK (privileged) {SET {DEFINE } PORT SIGNAL [CHECK] {ENABLED } {CHANGE {DISABLED} This privileged option indicates if the Terminal Server checks for incoming signals on a remote terminal port prior to connection. In the absence of the DSR signal, the Terminal Server rejects an attempted connection, either LOCAL or REMOTE.
Page 168: Port Slip (Nonprivileged)
TERMINAL SERVERS PORT SLIP (nonprivileged) {SET {DEFINE }PORT SLIP {ENABLED } {CHANGE {DISABLED} This nonprivileged option specifies whether SLIP is enabled for the port (the default is DISABLED). The attached device on the port must support the SLIP protocol to enable SLIP. The SLIP session for the port is disconnected when SLIP is disabled.
Page 169: Port Slip Compression States (Privileged)
TERMINAL SERVERS Initially set to compression disabled; however, if the SLIP receives a compressed packet, compression starts automatically. Restriction: • The SET PORT SLIP COMPRESSION command is a secure option. PORT SLIP COMPRESSION STATES (privileged) {SET {DEFINE } PORT SLIP COMPRESSION STATES {CHANGE This privileged command determines how many compression states are used on the SLIP datalink.
Page 170: Port Slip Host Address (Nonprivileged)
TERMINAL SERVERS PORT SLIP HOST ADDRESS (nonprivileged) {SET {DEFINE } PORT SLIP HOST [ADDRESS] host-id {CHANGE This nonprivileged option assigns the internet address of the attached device needed to act as a host in the internet environment. This option allows the Terminal Server to determine which Internet Protocol (IP) packets it should transmit or receive over the asynchronous line between the IP host and the internet network.
Page 171: Port Speed (Input/Output) (Nonprivileged)
TERMINAL SERVERS PORT SPEED (INPUT/OUTPUT) (nonprivileged) {SET {DEFINE } PORT [INPUT ] SPEED speed {CHANGE [OUTPUT] This nonprivileged option specifies the port speed in bits per second (bps). The following are the permissible port-speed values: 75,110, 134, 150, 300, 600, 1200, 1800, 2000, 2400, 4800, 9600 (default value), 19200, 38400, 57600, and 115200.
Page 172: Port Telnet Client Termtype
TERMINAL SERVERS BREAK (BRK) [REQUEST] QUOTE CHARACTER [SIZE] SWITCH [CHARACTER] ECHO SYNCH [REQUEST] EOR [REQUEST] TOGGLE ECHO INPUT/OUTPUT FLOW CONTROL For a detailed description of each of the Telnet CLIENT characteristics, refer to the SET SESSION Telnet command. Restriction: • Secure users are not allowed to use the DEFINE or CHANGE command with this characteristic.
Page 173: Port Telnet Server (Privileged)
TERMINAL SERVERS PORT TELNET SERVER (privileged) {SET {DEFINE } PORT [ALL ] Telnet SERVER [characteristics] {CHANGE [port-list A privileged option that permits specification of the characteristics to be associated with Telnet connections established to the specified port(s). The Telnet Terminal Server characteristics are the current user-definable port parameters attributed to a Telnet Terminal Server connection.
Page 174: Port Telnet Server Character Size
TERMINAL SERVERS PORT TELNET SERVER CHARACTER SIZE (privileged) {SET {DEFINE } PORT TELNET SERVER [TRANSMIT] {CHARACTER} [SIZE]{7} {CHANGE [RECEIVE ] This command determines if 7-bit or 8-bit characters should be sent and received on this connection. Transmit characters are sent by the Terminal Server to the host.
Page 175: Port Termination
TERMINAL SERVERS PORT TERMINATION {SET {DEFINE }PORT TERMINATION [STRING]{NONE {CHANGE {string This command specifies a string that the Terminal Server sends to the port if a TelNet session is disconnected. STRING A string of up to two characters in length can be specified, for example, control D, logout.
Page 176: Privileged/Nonprivileged (Secure)
TERMINAL SERVERS PRIVILEGED/NONPRIVILEGED (secure) SET {PRIVILEGED {NONPRIVILEGED} This secure option enables privileged operations to be executed by the port in use. This command causes the Terminal Server to prompt you for the privileged password. Specify the default password SYSTEM the first time the Terminal Server is used.
Page 177: Server (Privileged)
TERMINAL SERVERS SERVER (privileged) {SET {DEFINE }server characteristic [characteristic(s)] {CHANGE These privileged options define Terminal Server characteristics. Restriction: Some Terminal Server characteristics using a SET command cannot be modified during an active or queued session. These characteristics are listed in their respective restrictions in this section. Examples Local>...
Page 178: Server Announcements (Privileged, 4- And 8-Port Models Only)
TERMINAL SERVERS SERVER ANNOUNCEMENTS (privileged, 4- and 8-port models only) {SET {DEFINE } SERVER ANNOUNCEMENTS{ENABLED } {CHANGE {DISABLED} This LAT protocol command designates whether LAT multicast messages are sent over the Ethernet by the Terminal Server showing the availability of local services.
Page 179: Server Identification (Privileged)
TERMINAL SERVERS SERVER IDENTIFICATION (privileged) {SET {DEFINE } SERVER IDENTIFICATION “id-string” {CHANGE The id-string value is a string ranging from 1 to 40 ASCII characters. The string must be contained in quotation marks (“id-string”). Entering the command with a quoted null string (" ")deletes an identification string. When a user logs into the Terminal Server, this string is displayed in the welcome banner.
Page 180: Server Keepalive Timer (Privileged, 4- And 8-Port Models Only)
TERMINAL SERVERS SERVER KEEPALIVE TIMER (privileged, 4- and 8-port models only) {SET {DEFINE } SERVER KEEPALIVE [TIMER] seconds {CHANGE This is a privileged LAT protocol command that designates the interval between messages for LAT circuits on which no data is being transmitted. The range is from 10 to 180 seconds while the default is 20 seconds.
Page 181: Server Multicast Timer (Privileged, 4- And 8-Port Models Only)
TERMINAL SERVERS SERVER MULTICAST TIMER (privileged, 4- and 8-port models only) {SET {DEFINE } SERVER MULTICAST [TIMER] seconds {CHANGE This privileged LAT protocol command designates the time span between service announcement transmissions ranging from 10 to 180 seconds. The default is 30 seconds. SERVER NAME (privileged) {SET {DEFINE...
Page 182: Server Number (Privileged)
TERMINAL SERVERS SERVER NUMBER (privileged) {SET {DEFINE } SERVER NUMBER [n] {CHANGE This privileged command indicates a Terminal Server number ranging from 0 to 32767. The default is 0. Restriction: • You cannot use the SET command with this parameter while sessions are active.
Page 183: Server Prompt (Privileged)
TERMINAL SERVERS SERVER PROMPT (privileged) {SET {DEFINE } SERVER PROMPT ["prompt-string"] {CHANGE This is a privileged command that designates a unique string of characters for the prompt-string value that you assign to the Terminal Server prompt. The default prompt “Local” is substituted by these characters. The prompt- string value is a string of 1 to 16 ASCII characters surrounded by quotation marks ("prompt-string").
Page 184: Server Retransmit Limit (Privileged, 4- And 8-Port Models Only)
TERMINAL SERVERS DISABLED This command causes the Terminal Server to respond exclusively to solicit information datagrams that request local node and service information. DISABLED is the default. NOTE If the Terminal Server’s RESPONDER characteristic is set or cleared, it can still react to local service/node information when it receives a Solicited Information request targeted to itself.
Page 185: Server Service Groups (Privileged, 4- And 8-Port Models Only)
TERMINAL SERVERS SERVER SERVICE GROUPS (privileged, 4- and 8-port models only) {SET {DEFINE }SERVER[SERVICE]GROUPS{group-list}[ENABLED ] {CHANGE {ALL }[DISABLED] This privileged command designates which groups are assigned to all locally defined services and which are enabled for the Terminal Server when it operates as a service node.
Page 186: Service (Privileged, 4- And 8-Port Models Only)
TERMINAL SERVERS count The value, in 2 minute intervals, of the retransmission timer. The default (and minimum) value is 3, which represents the basic limit of 4 minutes. The maximum value is 255, which represents a limit of 8 hours and 30 minutes (=510 minutes).
Page 187: Service Connections (Privileged, 4- And 8-Port)
TERMINAL SERVERS SERVICE CONNECTIONS (privileged, 4- and 8-port models only) {SET {DEFINE } SERVICE service-name CONNECTIONS {ENABLED } {CHANGE {DISABLED} This privileged command determines if the Terminal Server will be able to receive new connections to the specified LAT service. The default is ENABLED.
Page 188: Ervice Ports (Privileged, 4- And 8-Port Models)
TERMINAL SERVERS SERVICE PORTS (privileged, 4- and 8-port models only) {SET {DEFINE } SERVICE service-name PORTS {port-list}[ENABLED] {CHANGE {ALL }[DISABLED] This is a privileged option that indicates ports that offer the LAT service. Designating port-list with ENABLED adds ports from the existing port list; DISABLED removes them.
Page 189: Session Lat (Secure, 4- And 8-Port Models Only)
TERMINAL SERVERS SESSION LAT (secure, 4- and 8-port models only) {INTERACTIVE } SET SESSION [LAT] {PASSTHRU {PASSALL This is a secure option that designates characteristics for the most recent LAT session you entered in service mode. This command is available to all users.
Page 190: Session Telnet Ao Request (Secure)
TERMINAL SERVERS SESSION TELNET AO REQUEST (secure) {character (DEFAULT:CTRL/O)} SET SESSION Telnet AO [REQUEST] {<DEL> {NONE The abort output (AO) request specifies a keyboard character which calls up the Telnet Abort Output function. This function aborts output en route to the user’s terminal. The default character is Ctrl/O. If <DEL> is to be designated as the keyboard character, enter “<DEL>”...
Page 191: Session Telnet Break (Brk) Request (Secure)
TERMINAL SERVERS SESSION TELNET BREAK (BRK) REQUEST (secure) {character} SET SESSION TELNET {BRK } [REQUEST] {BREAK } {BREAK} {NONE } The BRK or Break request is a secure command that designates a keyboard character to send the Telnet Break command to the remote host. No default BRK character exists.
Page 192: Session Telnet Ip Request (Secure)
TERMINAL SERVERS SESSION TELNET IP REQUEST (secure) {character (Default: Ctrl/Y)} SET SESSION TELNET IP [REQUEST]{<DEL> {NONE The interrupt Process (IP) request designates a keyboard character to call up the Telnet Interrupt Process function. Then the remote host interrupts or aborts the remote process. The default character is Ctrl/Y. To define (DEL) as the keyboard character, enter “<DEL>”...
Page 193: Session Telnet Profile (Secure)
TERMINAL SERVERS SESSION TELNET PROFILE (secure) SET SESSION TELNET PROFILE {CHARACTER} {BINARY This is a secure option that selects a set of characteristics for a Telnet connection. This command can prevent the user from having to set all of the individual characteristics in just the right way to produce a desired behavior on a Telnet connection.
Page 194: Session Telnet Synch Request (Secure)
TERMINAL SERVERS SESSION TELNET SYNCH REQUEST (secure) {character {Default: CTRL/X)} SET SESSION TELNET SYNCH REQUEST {<DEL> {NONE This is a secure option that specifies a keyboard character that invokes the Telnet Synch function. This function discontinues all input en route to the remote process (i.e., it clears the path to the remote process).
Page 195: Snmp Community Address (Privileged)
TERMINAL SERVERS SNMP COMMUNITY ADDRESS (privileged) [ADDRESS{ANY }] {ip-address} [GET {ENABLED {SET} {DISABLED {DEFINE}SNMP COMMUNITY community-name [GETNEXT {ENABLED}] {CHANGE} {DISABLED} [SET {ENABLED {DISABLED [TRAP {ENABLED {DISABLED This privileged specifies the community limitation when accessing the Terminal Server SNMP agent from SNMP NETWORK MANAGEMENT STATIONS (NMSes).
Page 196 TERMINAL SERVERS ANY should be designated for instructing the Terminal Server to accept SNMP messages from any ip-address associated with that community. ANY can also be designated to detach the community from a specific ip-address which clears a previously defined ip-address. NOTE Before specifying ADDRESS as ANY , disable TRAP.
Page 197 TERMINAL SERVERS When SNMP Traps are enabled, traps will be sent in the following events: • Cold Start—Sent when the Terminal Server is initialized. • Line Up—Sent when a PORT connection is established. • Line Down—Sent when a PORT is disconnected. •...
Page 198: Telnet Listener (Privileged)
TERMINAL SERVERS Telnet LISTENER (privileged) {SET {CONNECTIONS {ENABLED} {DEFINE}Telnet LISTENER tcp-port{IDENTIFICATION “id-string”} {CHANGE {ALL {PORTS {ACCESS}[ENABLED] {port-list} This is a command for privileged users that designates a Telnet listener or Telnet remote access port on the Terminal Server. The listener may be connected to physical Terminal Server ports or with the remote access virtual port.
Page 199 TERMINAL SERVERS This command associates the listener with all the Terminal Server ports. ACCESS This command designates the Telnet remote access port. Users accessing the Terminal Server through this port can subsequently access Telnet nodes or perform management tasks. NOTE The number of concurrent sessions to Telnet remote access ports is limited by the Terminal Server SESSION LIMIT parameter and the number of currently existing sessions.
Page 200 TERMINAL SERVERS Examples Local> SET Telnet LISTENER 23 ACCESS ENABLED Local> SET Telnet LISTENER 23 CONNECTIONS ENABLED These commands enable a Telnet listener on tcp port 23 designating it as a remote access port. LOCAL> DEFINE Telnet LISTENER 2001 PORTS 1,2 LOCAL>...
Page 201: Show/List Commands
TERMINAL SERVERS 8. SHOW/LIST Commands This chapter describes the SHOW and LIST commands. The SHOW commands display current status or information about various options from the Terminal Server operational database. The LIST commands display information about various options from the permanent database.
Page 202: Bootp (Secure)
TERMINAL SERVERS BOOTP (secure) {SHOW}BOOTP {LIST } This option displays information in the Terminal Server’s BOOTP database. This command is available to all users. INTERNET (secure) {SHOW }INTERNET [CHARACTERISTICS] {LIST [COUNTERS This option displays information in the Terminal Server internet database. This command is available to all users.
Page 203: Internet Arp Entry (Secure)
TERMINAL SERVERS This command displays the ARP ENTRIES of the Terminal Server ARP database. This command is available to all users. Example Local> SHOW INTERNET ARP ENTRY All of the operational database’s INTERNET ARP ENTRIES are displayed by this command. INTERNET GATEWAY (secure) {SHOW }INTERNET GATEWAY {LIST...
Page 204: Internet Host (Secure)
TERMINAL SERVERS {LIST [LOCAL ][SUMMARY [domain-name This command displays host entry information derived from the Terminal Server internet domain name system (DNS). This command is available to all users. Indicates to display all hosts in the DNS cache. This is the default. CACHED Indicates to display only hosts that the Terminal Server has in the DNS cache.
Page 205: Internet Name Resolution (Secure)
TERMINAL SERVERS This command displays all current hosts defined locally in the Terminal Server operational database. Local> LIST INTERNET HOST ALL This command displays all hosts defined in the Terminal Server permanent database. INTERNET NAME RESOLUTION (secure) {SHOW}INTERNET NAME RESOLUTION[CHARACTERISTICS] {LIST } This command (available to all users) displays information in the Terminal Server domain name system (DNS) database.
Page 206: Nodes (Secure, 4- And 8-Port Models)
TERMINAL SERVERS This command displays the current memory state. The command shows all dynamic buffers in the Terminal Server and their status. The Terminal Server has several pools of buffers, each has a different size. The display consists of several lines, one for each buffer pool. Each line contains 4 numbers: •...
Page 207 TERMINAL SERVERS [node—name ][STATUS [SUMMARY This command provides details about LAT service nodes known to the Terminal Server. This command is available to all users. The Terminal Server shows only those nodes that have at least one group currently selected on the port for nonprivileged users (as defined in the GROUPS port characteristic).
Page 208: Ports (Secure)
TERMINAL SERVERS Local> SHOW NODES ALL This command produces a one-line summary of information from the operational database about each service node with Reachable, Unreachable, or Unknown status. PORTS (secure) [CHARACTERISTICS {SHOW }PORTS[ACCESS{type}] [COUNTERS {LIST [ALL [STATUS [port-list [SUMMARY This command displays information about Terminal Server ports, including the characteristics designated with the SET/DEFINE/CHANGE PORT commands.
Page 209 TERMINAL SERVERS Displays current counter values for the specified port(s). STATUS Displays current port status for the specified port(s). SUMMARY This command shows information for the specified port(s), such as port number, accessibility, status, and local services in a one-line summary. This is the default when ALL or ACCESS is specified.
Page 210: Port Ppp Lcp/Ipcp (Secure)
TERMINAL SERVERS {SHOW } [CHARACTERISTICS {MONITOR }PORT n [PPP] {LCP [COUNTERS {LIST {IPCP [STATUS These secure commands display information associated with PPP LCP, IPCP, or ATCP ports from the access server database. CHARACTERISTICS This command displays current values for port PPP LCP, IPCP, or ATCP characteristics.
Page 211: Port Session (Secure)
TERMINAL SERVERS PORT SESSION (secure) SHOW PORT [ALL ]SESSION[ALL ][CHARACTERISTICS ] [port-list ] [session-id ][STATUS This command displays information for the session(s) on the Terminal Server from the operational database. This command can display one session at a time (rather than all sessions as exists in the SHOW SESSIONS command).
Page 212 TERMINAL SERVERS Example Local> SHOW PORT 1 SESSION ALL STATUS Port 1, session 1, Protocol Ping (no status information available for PING sessions) Port 1, session 2, Protocol TELNET Do-Binary Disabled Will-Binary Disabled Do-Echo Disabled Will-Echo Enabled Do-SGA Disabled Will-SGA Enabled Do-Status Enabled...
Page 213: Port Slip (Privileged)
TERMINAL SERVERS PORT SLIP (privileged) {SHOW } {MONITOR }PORT[ALL ]SLIP [CHARACTERISTICS {LIST [port-list [COUNTERS These privileged commands display information associated with SLIP ports from the access server database. The characteristics that you assign with the SET/DEFINE/CHANGE PORT SLIP command are included. Specifies that information for all ports is displayed.
Page 214: Port Telnet (Secure)
TERMINAL SERVERS PORT Telnet (secure) {SHOW }PORT[ALL ] Telnet[CLIENT][CHARACTERISTICS] {LIST [port-list ][SERVER] This command displays information from the Terminal Server database associated with Telnet ports. This command is available to all users. Displays the Telnet database for all Terminal Server ports. port-list Indicates the Terminal Server port number(s) for which the Telnet database is to be displayed.
Page 215: Queue (Nonprivileged, 4- And 8-Port Models)
TERMINAL SERVERS QUEUE (nonprivileged, 4- and 8-Port models) [ALL SHOW QUEUE[NODE node-name [PORT port-name [SERVICE service-name This nonprivileged command displays information about entries in the LAT Terminal Server queue. Displays information for all LAT queue entries on the Terminal Server. The default display selection is ALL NODE node-name Displays information for all LAT queue entries requested by the specified...
Page 216: Server (Nonprivileged)
TERMINAL SERVERS SERVER (nonprivileged) [CHARACTERISTICS {SHOW} SERVER [COUNTERS {LIST } [STATUS [SUMMARY This is a nonprivileged command that provides service information about the Terminal Server. CHARACTERISTICS This command provides definable characteristics for the Terminal Server. The characteristics include a list of LAT groups offered by the Terminal Server (as specified by the SET/DEFINE/CHANGE server SERVICE GROUPS command).
Page 217: Services (Secure, 4- And 8-Port Models)
TERMINAL SERVERS SERVICES (secure, 4- and 8-Port models) [ALL [CHARACTERISTICS {SHOW} SERVICES [LOCAL] [STATUS {LIST } [service-name ][SUMMARY This command provides information about LAT services available for connection. This command is available to all users. Displays information for all LAT services in the database that correspond to your current group codes, regardless of the service’s availability.
Page 218: Sessions (Secure)
TERMINAL SERVERS Restrictions: • The SHOW SERVICES command is not available if the LIMITED VIEW port characteristic is enabled. • ALL, STATUS, and SUMMARY are not valid for the LIST SERVICES command. Examples Local> SHOW SERVICES LOCAL This command displays summary for all local services from the operational database.
Page 219: Snmp
TERMINAL SERVERS SNMP {SHOW} SNMP [CHARACTERISTICS] {LIST } [COUNTERS [STATUS These commands display SNMP-related information, such as SNMP characteristics, error and access counters, and operational status. CHARACTERISTICS Displays current values for SNMP community names and internet addresses. Also displays “enabled” or “disabled” for SNMP characteristics GET, GETNEXT, SET, and TRAP.
Page 220: System Characteristics (Secure)
TERMINAL SERVERS SYSTEM CHARACTERISTICS (secure) {SHOW} SYSTEM [CHARACTERISTICS] {LIST } This command (available to all users) displays Terminal Server characteristics such as the system location and the system contact person. CHARACTERISTICS Displays (in ASCII format) system information such as the name of the system contact person (system manager) and the system location.
Page 221: Telnet Listener (Secure)
TERMINAL SERVERS Telnet LISTENER (secure) {SHOW} Telnet LISTENER {ALL }[CHARACTERISTICS] {LIST } {tcp-port This command (available to all users) displays information about Telnet listeners on the Terminal Server. Specifies that all Telnet listeners are to be displayed. tcp-port Specifies that only information about the Telnet listener associated with the specified TCP port is to be displayed.
Page 222: Clear/Purge Commands
TERMINAL SERVERS 9. CLEAR/PURGE Commands This chapter describes the CLEAR and PURGE commands. Both of these commands are used to delete whatever is specified by the keyword from the Terminal Servers databases. To remove information from the operational database use the CLEAR command.
Page 223 TERMINAL SERVERS net-addr Specifies the gateway entry for traffic from the Terminal Server to the specified network. This is beneficial when only one leg of a gateway is to be removed. Specifies the gateway entry for traffic from the Terminal Server to any network.
Page 224: Internet Host (Privileged)
TERMINAL SERVERS INTERNET HOST (Privileged) {ALL {CLEAR} INTERNET HOST {domain-name {PURGE} {CACHED {LOCAL This privileged command deletes existing internet hosts from the Terminal Server internet domain name system (DNS) database. Indicates that all hosts in the DNS cache will be deleted. domain-name Specifies the domain-name of a host or a domain to be deleted.
Page 225: Internet Nameserver (Privileged)
TERMINAL SERVERS INTERNET NAMEserver (privileged) {CLEAR}INTERNET NAMEserver{ALL {PURGE} {[NAME]name[ADDRESS ip-address]} This privileged command deletes existing internet domain name servers from the Terminal Server domain name system (DNS) database, no longer using them for name resolution. Indicates that all domain name servers will be deleted. NAME name Specifies the name of the domain name server to be deleted.
Page 226: Port Ppp Host Address (Privileged)
TERMINAL SERVERS PORT PPP HOST ADDRESS (nonprivileged) {CLEAR} PORT[ALL ]PPP HOST{SLIP][ADDRESS] {PURGE} [port-list ] This nonprivileged command deletes an internet address of the port’s attached device. Specifies all access server ports. port-list Specifies one or more ports. Refer to Section 7.6 for more information on specifying port-list.
Page 227: Snmp Community (Privileged)
TERMINAL SERVERS LOCAL Specifies that all locally defined LAT services will be deleted. LOCAL is the default. Entering the CLEAR SERVICES command under the following circumstances will cause an error message: • Sessions are established with the service. • The Terminal Server queue contains CONNECT requests for the specified service.
Page 228: Telnet Listener (Privileged)
TERMINAL SERVERS Example Local> PURGE SNMP COMMUNITY “Network Management” This command clears the SNMP community name “Network Management” from the permanent database. Telnet LISTENER (privileged) {CLEAR}Telnet LISTENER{tcp-port {PURGE} {ALL This privileged command resets a predefined Telnet listener in the Terminal Server database back to the factory-set defaults. An error message appears if the CLEAR Telnet LISTENER command is entered while there are sessions active from the specified listener.
Page 229 TERMINAL SERVERS tcp-port Specifies the TCP port number of the listener to be reset. The port is reset to Connections: DISABLED and Ports: NONE when the listener specified is in the range from 2001 to 2016. The port is reset to Connections: ENABLED and Ports: ACCESS when the listener specified is 23 (used for Telnet remote access).
Page 230: Appendix A: Upgrading To New Software
TERMINAL SERVERS Appendix A: Upgrading to New Software The following steps will enable you to upgrade the software version on the Terminal Server to the latest release, when necessary. It does not apply to the Single-Port Terminal Server, which requires factory EPROM changes. The following hardware is required in order to update the software version successfully: •...
Page 231 TERMINAL SERVERS 4. Run the terminal program of your choice and set the emulation parameters to reflect the following: a) In Procomm (v2.x or above): Select protocol options Select ASCII protocol options and set: Baud rate: 9600-115200 Echo locally: Line pacing: CR translation (upload): NONE LF translation (upload):...
Page 232 TERMINAL SERVERS 6. Enter the following commands (shown in bold characters): Local> set priv Password> system (or your specific privileged password if it has been changed) Radlinx TS booting in Console Mode Loader Ver 1.0 loader> LOAD send file The Terminal Server is now ready to receive the file from the PC. 7.
Page 233 TERMINAL SERVERS In the unlikely event of an uploading procedure failing for the 4- or 8- Port Terminal Server, configure the terminal emulation to 19200 baud (the loader’s initial speed for this mode). Turn the Terminal Server off and then on.
Page 234: Appendix B: Eproms
TERMINAL SERVERS Appendix B: EPROMS EPROMs are integrated memory circuits used to store the operating software of the Single-Port Terminal Server. This section will prepare you for two procedures, namely physically removing and replacing EPROMs and programming procedures for programming the ICs. B.1 Installing/Replacing the EPROMs The following steps will enable you to physically manipulate the EPROMs if necessary:...
Page 235 TERMINAL SERVERS B.2 Programming the EPROMs The new EPROM code is made available either on diskette or through an anonymous FTP site located at ftp.radlinx.rad.co.il—in the relevant subdirectories relating to the unit. The code is available as an uncompressed ver_id.hex file where ver_id is the version id number of the release. The following is an example of the EPROM that is supported.

This manual is also suitable for:

Le2101ae-bt-r2 Le2101a-t-r2 Le2101ae-t-r2 Le2104a-aui-r2 Le2104a-bnc-r2 Le2204a-aui-r2 ... Show all

Black Box LE2101A-BT-R2 Manual

1 Specifications

2 Overview

3 Installation

4 Configuration Guide

5 User Commands and Applications

6 Command Descriptions

7 SET/DEFINE/CHANGE Commands

8 Port Only)

9 CLEAR/PURGE Commands

Appendix A: Upgrading to New Software

Appendix B: EPROMS

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Summary of Contents for Black Box LE2101A-BT-R2