CONTENTS Title Page Copyright Page About This Manual 1 Overview 1.1 Configuration Tasks for System Administrators 1.2 Management Tasks for System Administrators 1.3 User Tasks 1.4 Storage of Configuration Settings and Changes in Memory 1.5 Commands to Display and Change Configuration Settings 2 Management Tools 2.1 Access Server Commands 2.1.1 Levels of Access Server Commands 2.1.2 Privileged Commands 2.2 HELP command 2.2.1 The HELP TUTORIAL Command 2.2.2 The HELP Command 2.3 The Console Port 2.4 The Remote Console Port 2.4.1 Network Control Program (NCP) 2.4.2 Use of SET HOST/MOP from a DECnet/OSI VMS Node 2.4.3 Use of CCR from an ULTRIX DECnet Node 2.4.4 Console Carrier Request (CCR) 2.4.5 Telnet Remote Console 3 Managing Load Hosts 3.1 DSV$CONFIGURE 3.1.1 Backward Compatibility of DSV$CONFIGURE 3.1.2 Executing DSV$CONFIGURE 3.1.3 The ADD command 3.1.4 The MODIFY and SET Commands 3.1.5 The DELETE Command 3.1.6 The LIST and SHOW Commands 3.1.7 The CONNECT and USE Commands 3.1.8 Context-Sensitive Help for DSV$CONFIGURE 3.2 DSVCONFIG 3.3 Configuring a BOOTP/TFTP Server 3.4 Upline Dumping 3.4.1 Upline Dumps with MOP Hosts 3.4.2 Upline Dumps with BOOTP/TFTP Hosts 3.5 Terminal Server Manager (TSM) 4 Initializing the Access Server 4.1 Preparing LAT Services for Initialization 4.2 Preparing Telnet Listeners for Initialization 4.3 Using the INITIALIZE Command 4.3.1 Default Mode for the INITIALIZE Command 4.3.2 Specifying Initialization from a Load Host 4.3.3 Specifying an Image Name When Initializing 4.3.4 Specifying Initialization from Flash RAM 4.3.5 Updating Flash RAM 4.3.6 Specifying a Delay Value with INITIALIZE 4.3.7 Using the DIAGNOSE Option with INITIALIZE 4.3.8 Specifying the DISABLE OPTION with INITIALIZE 4.3.9 Using NCP to Initialize the Access Server 5 Configuring LAT Characteristics 5.1 Preparing to Change LAT Characteristics 5.2 Summary of LAT Characteristics 5.3 Displaying LAT Characteristics 5.4 ANNOUNCEMENTS 5.5 The CIRCUIT TIMER 5.5.1 Increasing the CIRCUIT TIMER 5.5.2 Decreasing the CIRCUIT TIMER 5.6 The IDENTIFICATION Characteristic 5.7 The KEEPALIVE TIMER 5.8 The MULTICAST TIMER 5.9 The ACCESS SERVER NAME 5.10 NODE LIMIT 5.11 The Access SERVER NUMBER 5.12 QUEUE LIMIT 5.13 The RETRANSMIT LIMIT 5.14 The RESPONDER Characteristic 5.15 Service Groups 6 TCP/IP Network Characteristics 6.1 The Internet Address and Subnet Mask 6.1.1 Displaying the Internet Address and Subnet Mask 6.1.2 Setting the Internet Address 6.1.3 Setting an Internet Subnet Mask 6.2 The Domain Name System (DNS) 6.2.1 Displaying the Characteristics for the DNS 6.2.2 Displaying the DNS Counters 6.2.3 The Default Name Resolution Domain 6.2.4 Time Limit 6.2.5 Retry Limit 6.2.6 Name Resolution Mode 6.2.7 Configuring a List of Commonly Used Internet Hosts 6.2.8 Configuring a List of Internet Name Servers 6.2.8.1 Configuring a Root Name Server 6.2.8.2 Configuring a Local Name Server 6.2.8.3 Configuring a Name Server for a Different Domain 6.2.8.4 Name Resolution and Gateways 6.3 Configuring a List of Internet Gateway Addresses 6.3.1 Displaying a List of Gateway Addresses 6.3.2 Configuring a Default Gateway 6.3.3 Defining Networks Available Through a Specific Gateway 6.3.4 Defining Subnets Available Through a Specific Gateway 6.3.5 Defining Hosts Available Through a Specific Gateway 6.4 List of Internet ARP Entries 6.4.1 Displaying the List of Internet ARP Entries 6.4.2 Defining an ARP Entry 6.5 Displaying the Internet Counters 7 Configuring Basic Device Characteristics 7.1 Summary of Basic Device Characteristics 7.2 Displaying Basic Device Characteristics 7.3 The ACCESS Characteristic 7.4 Matching the Port and Device Characteristics 7.4.1 AUTOBAUD 7.4.2 PARITY 7.4.3 SPEED 7.4.4 STOP BITS 7.4.5 TYPE 7.5 FLOW CONTROL 7.5.1 FLOW CONTROL Types 7.5.1.1 XON/XOFF 7.5.1.2 DSR 7.5.1.3 CTS 7.5.1.4 No FLOW CONTROL 7.5.2 FLOW CONTROL Direction 7.6 Specifying the Automatic Logout Characteristics 7.6.1 Specifying DSRLOGOUT 7.6.2 Specifying LONGBREAK LOGOUT 7.6.3 Specifying INACTIVITY LOGOUT 7.6.4 Specifying the INACTIVITY TIMER 8 Modem Signals 8.1 DTE/DCE Device Configuration 8.2 Determining the Supported Modem Signals 8.3 Description of Modem Signals 8.4 Specifying MODEM CONTROL and SIGNAL CONTROL 8.4.1 Disabling Modem Control 8.4.2 Using MODEM CONTROL and SIGNAL CONTROL for Computer Connections 8.4.3 Enabling MODEM CONTROL and SIGNAL CONTROL 8.5 Specifying SIGNAL SELECT 8.5.1 How To Select the Values for the SIGNAL SELECT Characteristic 8.5.2 How to Enable SIGNAL SELECT 8.6 Specifying SIGNAL CHECK 8.7 Specifying DTRWAIT 8.8 Specifying RING 8.9 Specifying ALTERNATE SPEED 8.10 Specifying DIALUP 8.11 Configuring Modems 8.11.1 MODEM CONTROL Sequences 8.11.1.1 Establishing a Connection 8.11.1.2 Responding to Momentary Loss of CTS 8.11.1.3 Disconnecting 8.12 Configuring DTR and DSR 9 Configuring and Managing Interactive Devices 9.1 Configuring an Interactive Device for LAT Sessions 9.1.1 Configuring LAT Group Codes for Interactive Devices 9.1.2 Specifying AUTOCONNECT 9.1.2.1 Disabling AUTOCONNECT 9.1.2.2 Enabling Autoconnect 9.1.2.3 AUTOCONNECT with a Preferred or Dedicated Service Enabled 9.1.2.4 AUTOCONNECT with a Preferred or Dedicated Service Disabled 9.1.2.5 AUTOCONNECT and Nonoperational Service Nodes 9.1.2.6 Autoconnect and LAT Session Failure 9.1.3 Specifying AUTOPROMPT 9.1.3.1 AUTOPROMPT Enabled 9.1.3.2 AUTOPROMPT Disabled 9.1.4 Specifying the Default Protocol 9.1.5 Specifying the FAILOVER characteristic 9.1.6 Configuring PORT QUEUING 9.1.6.1 Enabling PORT QUEUING 9.1.6.2 The SERVICE CONNECTIONS Characteristic 9.1.6.3 The SERVER QUEUE LIMIT Characteristic 9.1.6.4 Displaying Queue Entries 9.1.6.5 Removing Queue Entries 9.1.7 The REMOTE MODIFICATION Characteristic 9.2 Configuring an Interactive Device for Telnet Sessions 9.3 Configuring a Session Management (TD/SMP) Terminal 9.4 Configuring On-Demand Loading for Asian Terminals 9.5 Configuring for Block-Mode Terminals 9.6 Specifying the Telnet Client Session Profile 9.7 Configuring Individual Telnet Client Session Characteristics 9.7.1 Specifying ECHO Characteristics 9.7.2 Specifying the BINARY Characteristic 9.7.3 Specifying CHARACTER SIZE 9.7.4 Mapping Keyboard Characters to Telnet Functions 9.7.5 Specifying AUTOFLUSH 9.7.6 Specifying AUTOSYNCH 9.7.7 Specifying Telnet Client NEWLINE 9.7.8 Specifying FLOW CONTROL 9.7.9 Specifying MESSAGE VERIFICATION 9.7.10 Specifying the SWITCH CHARACTER 9.8 Security Features 9.8.1 Specifying Dedicated Service for LAT or Telnet Resources 9.8.1.1 Configuring a Dedicated LAT Service 9.8.1.2 Configuring an Internet Host as a Dedicated Service 9.8.1.3 Connecting to a Dedicated Service 9.8.2 Login Password 9.8.2.1 Defining a Login Password 9.8.2.2 Enabling the Login Password on a Port 9.8.2.3 Specifying PASSWORD LIMIT 9.8.3 User Authentication 9.8.3.1 Configuration of User Authentication in Basic Mode 9.8.3.2 User Authentication Procedure 9.9 Managing Users 9.9.1 Providing a Contact Name and Access Server Location 9.9.2 Specifying Preferred Service for LAT or Telnet Resources 9.9.2.1 Configuring a LAT Preferred Service 9.9.2.2 Configuring a Preferred Telnet Service 9.9.3 Specifying the Port USERNAME 9.9.4 Specifying Keys to Switch Between Sessions 9.9.5 Defining the BREAK Key 9.9.6 Specifying a Key to Switch to Local Mode 9.9.7 Specifying BROADCAST 9.9.8 Specifying LOSS NOTIFICATION 9.9.9 Specifying Message Codes 9.9.10 Specifying VERIFICATION 9.9.11 Specifying Lock 9.9.12 Displaying Information About the Users 9.9.13 Specifying User Groups 9.10 Managing Sessions 9.10.1 Initiating a Session to a LAT Service 9.10.2 Initiating a Session to an Internet Host 9.10.3 Sending Telnet Functions to a Remote Telnet Server 9.10.4 Controlling the Number of Sessions 9.10.5 Displaying Session Information 9.10.6 Displaying Session Characteristics 9.10.7 Displaying Session Status 9.10.8 Terminating Sessions 9.10.8.1 The Privileged LOGOUT PORT Command 9.10.8.2 The Privileged DISCONNECT PORT Command 10 Configuring and Managing LAT Services 10.1 Configuring a Port to Offer a LAT Service 10.2 Configuring Access to a LAT Service 10.2.1 Service Name 10.2.1.1 ANNOUNCEMENTS Characteristic and LAT Serviceschap 10.2.1.2 Guidelines for Selecting a Service Name 10.2.2 Identification String 10.2.2.1 Assigning an Identification String 10.2.2.2 Clearing a Service Identification String 10.2.3 Assigning a Port Name 10.2.4 The Service Password 10.2.4.1 Assigning a Service Password 10.2.4.2 Clearing a Service Password 10.2.4.3 PASSWORD LIMIT Characteristic 10.3 Configuration of Specific Types of Devices As LAT Services 10.3.1 Configuring a Personal Computer As a Terminal and LAT Service 10.3.2 Configuring a Computer As a LAT Service 10.3.3 Configuring a Modem As a LAT Service 10.3.4 Configuring a Printer As a LAT Service 10.3.5 Setting Up a LAT Remote Print Queue on a VMS Host 10.3.6 Privileges for Running LATCP 10.3.7 Creating a Logical Device to Access a Printer Service 10.3.7.1 Configuring a Logical Device to Connect a Specific Port 10.3.7.2 Using a Remote Printer Command File 10.3.8 Setting Up a LAT Remote Print Queue on an ULTRIX System 10.4 Configuring a Printer with Unannounced Availability 10.5 Verifying the LAT Service 10.5.1 Disconnecting from the Service 10.5.2 Problem Solving 10.6 Managing Your Access Server As a LAT Node Offering a Service 10.6.1 Displaying Information About a Service 10.6.1.1 Displaying Service Characteristics 10.6.1.2 Displaying Services Status 10.6.1.3 Displaying Services Summary 11 Configuring and Managing Telnet Servers 11.1 Configuration of Specific Types of Devices 11.1.1 Configuring a Printer for Access Through a Telnet Listener 11.1.2 Configuring a Computer for Access Through a Telnet Listener 11.1.3 Configuring a Modem for Access Through a Telnet Listener 11.2 Configuring a Personal Computer As a Terminal and for Access through a Telnet Listener 11.2.1 Configuring Personal Computer Access to a Printer 11.2.2 Setting User Priority for Devices Using Dynamic Access 11.2.2.1 How to Enable Interupts 11.2.2.2 Rules for Using the INTERRUPTS Characteristics 11.2.3 Configuring a File Transfer Partner 11.2.3.1 Requirements for File Transfer 11.2.3.2 Guidelines for Setting Up File Transfer Partners 11.3 Configuring a Remote Print Queue 11.3.1 Configuring a TCP/IP Remote Print Queue on an ULTRIX System 11.3.2 Configuring a TCP/IP Remote Print Queue on a UNIX System 11.4 Configuring a Telnet Listener 11.5 Configuring Telnet Server Session Characteristics 11.5.1 Mapping Event Indications to Keyboard Characters 11.5.2 Specifying Newline Characteristics 11.5.3 Specifying Character Size 11.6 Managing Your Access Server As a Telnet Listener Node 11.6.1 Displaying Telnet Listeners 11.6.2 Displaying Telnet Server Characteristics 11.6.3 Removing a Telnet Listener 11.6.4 Removing One of Many Devices Assigned to a Telnet Listener 11.6.5 Reassigning a Port 12 Configuring and Managing SLIP Ports 12.1 Description of Packet Forwarding to and from SLIP Hosts 12.2 Displaying SLIP Characteristics 12.3 Internet Addresses for SLIP Hosts 12.3.0.1 Example of a Subnet Identifier 12.3.0.2 How an Access Server Port Obtains the SLIP Host Internet Address 12.3.0.3 The SET/DEFINE/CHANGE PORT SLIP HOST ADDRESS Command 12.3.0.4 How a Port Automatically Obtains the SLIP Host Address 12.4 The Maximum Transmission Unit (MTU) 12.4.1 How to Change the MTU 12.4.2 Relationship of the TCP Maxi~~~