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Lantronix SCS Reference Manual

Lantronix SCS Reference Manual (424 pages)

Secure Console Servers

Brand: Lantronix | Category: Server | Size: 2 MB

Table of Contents

Table of Contents
3
1 : Introduction

15
- What Is New
  15
- How to Use this Manual
  15
2 : Getting Started

17
- Configuration Methods
  17
  - Ezwebcon
    17
  - Web Browser Interface
    17
  - Command Line
    18
    
    Entering Commands
    19
    
    Command Types
    19
    
    Restricted Commands
    20
    
    Abbreviating Commands
    20
- Rebooting
  21
- System Passwords
  23
  - Login Password
    23
  - Privileged Password
    24
- Basic Configuration
  25
  - Changing the Server Name
    25
  - Changing the Local Prompt
    25
  - Changing the Login Prompts
    26
  - Setting the Date and Time
    26
  - Configuration
    27
    
    Mac Address
    30
    
    Network Mode
    30
- Configuration Files
  32
  - Creating a Configuration File
    32
  - Using a Configuration File
    33
- Disk Management
  34
  - Flash Disk
    34
  - ATA Cards
    34
3 : Console Server Features

36
- Overview of Console Servers
  36
- Event Port Logging
  37
  - Enabling Port Logging
    37
  - Viewing the Port Log
    37
- Email Alerts for Serial Events
  38
- Configuring Menu Mode
  39
- Login Banner
  43
- Managing the Attached Devices
  43
  - In-Band Management
    43
  - Out of Band Management
    44
  - Connecting from the Local> Prompt
    44
  - Serial Break Handling
    44
    
    Serial Breaks
    45
    
    Alternate Break Sequences
    45
- Serial Port Configurations
  49
4 : Basic Remote Networking

50
- Remote Connection Types
  50
  - Remote Dial-In
    50
  - LAN to LAN
    51
- Managing Connections with Sites
  51
  - Creating a New Site
    52
  - Displaying Existing Sites
    53
  - Editing Sites
    53
  - Testing Sites
    54
  - Deleting Sites
    54
  - Using Sites for Incoming Connections
    54
  - Using Sites for Outgoing Connections
    55
  - ISP Site Connections with NAT
    55
- IP Address Negotiation
  56
- IP Routing
  57
- Incoming Connections
  60
- Outgoing Connections
  65
  - Ports for Outgoing Connections
    66
  - Telephone Numbers
    66
  - Authentication
    66
  - Configuring Outgoing Connections
    67
- Monitoring Networking Activity
  69
- Examples
  70
5 : Additional Remote Networking

75
- Basic Security
  75
  - Port Authentication
    75
  - Filter Lists
    76
- Chat Scripts
  77
  - Creating a Chat Script
    77
  - Editing and Adding Entries
    77
  - Configuring Timeouts
    78
  - Setting Markers
    78
- Bandwidth on Demand
  78
- Increasing Performance
  82
  - Filtering Unwanted Data
    82
  - Compressing Data and Correcting Errors
    83
  - Adding Bandwidth
    83
  - IP Header Compression
    83
- Reducing Cost
  84
- Using the SCS Without Dialup Modems
  87
  - Situations Where Dialup Modems Are Not Used
    87
  - Configuring the Unit for Modemless Connections
    88
- Character Mode Sites
  89
- Examples
  90
6 : Ip

92
- IP Addresses
  92
  - IP Addresses for Incoming Connections
    93
  - IP Addresses for Outgoing Connections
    95
- Subnet Masks
  96
  - Length of Subnet Masks
    97
- Name Resolving
  97
- Header Compression
  99
- Establishing Sessions
  99
  - Telnet and Rlogin Sessions
    100
  - SSH Sessions
    101
  - Restricting Connections to SSH
    108
  - Disabling HTTP and FTP
    108
- IP Security
  108
  - Configuring the Security Table
    109
  - Clearing Table Entries
    109
- IP Routing
  110
  - How Packets Are Routed
    110
  - Routing Tables
    110
  - Using RIP
    113
  - Proxy ARP
    113
  - Using the Netbios Nameserver (NBNS)
    113
  - Routing and Subnetworks
    114
- Displaying the IP Configuration
  114
- Examples
  116
  - IP Address Assignment for Remote Networking
    116
  - General IP Setup
    117
  - Adding Static Routes
    117
  - Default Routes to a Site
    117
7 : Ppp

118
- Lcp
  118
  - Packet Sizes
    118
  - Header Compression
    118
  - Character Escaping
    118
  - PPP Authentication
    119
  - Cbcp
    120
- Ncp
  120
- Starting PPP
  120
  - User-Initiated PPP
    121
  - Automatic Detection of PPP
    121
  - Dedicated PPP
    121
- Multilink PPP
  121
  - Configuring the Calling SCS
    121
  - Configuring the Receiving SCS
    123
- Restoring Default PPP Settings
  124
- Pocket PC PPP Support
  124
- Character Mode Sites
  124
- Troubleshooting
  125
8 : Ports

126
- Using Port Commands
  126
- Setting Port Access
  126
- Starting a Port
  126
  - Waiting for Character Input
    127
  - Starting Automatically
    127
- Port Modes
  128
  - Character Mode
    128
  - PPP Mode
    128
  - SLIP Mode
    128
- Automatic Protocol Detection
  129
- Port-Specific Session Configuration
  129
  - Multiple Sessions
    129
  - Switching between Sessions
    130
  - Exiting Sessions
    130
  - Monitoring Session Activity
    132
  - Setting Session Characteristics
    132
- Preferred/Dedicated Protocols & Hosts
  133
  - Dedicated Protocols
    133
  - Preferred/Dedicated Hosts
    134
  - Saving Autostart Characters
    134
- Port Restrictions
  134
  - Locking a Port
    134
  - Enabling Signal Check
    135
  - Username/Password Protection
    135
  - Automatic Logouts
    136
  - Restricting Commands
    137
  - Receipt of Broadcast Messages
    137
  - Dialback
    137
  - Enabling Menu Mode
    137
- Serial Port Configuration
  138
  - Naming a Port
    138
  - Specifying a Username
    138
  - Notification of Character Loss
    138
  - Padding Return Characters
    139
  - Setting the Device Type
    139
  - Specifying a Terminal Type
    139
  - Transmitting Serial Data
    139
  - Restoring Default Port Settings
    140
- Configuration
  140
  - Two-Wire Mode
    141
  - Four-Wire Mode
    142
  - Termination
    143
  - Networking
    143
- Flow Control
  143
  - Hardware Flow Control
    143
  - Software Flow Control
    144
  - Setting up Flow Control
    144
- Serial Signals
  145
  - DSR (Data Set Ready)
    146
  - DCD (Data Carrier Detect)
    146
  - DTR (Data Terminal Ready)
    147
- Virtual Ports
  147
- Modem Emulation
  148
9 : Modems

149
- Setup and Wiring
  149
- Modem Speeds
  150
  - Serial Speed
    150
  - Line Speed
    150
- Modem Profiles
  150
  - Using a Profile
    151
  - Editing a Profile
    151
  - Profile Settings
    153
  - Profiles for Modems with External Switches
    156
- Modem and SCS Interaction
  156
  - Initialization
    156
  - Outgoing Calls
    156
  - Incoming Calls
    157
  - When a Port Is Logged out
    157
  - Compression
    157
  - Error Correction
    158
  - Modem Security
    159
  - Autostart
    159
  - Dialback
    159
- Terminal Adapters
  160
- Caller-ID
  160
- Examples
  161
  - Typical Modem Configuration
    161
  - Modem Configuration Using Generic Profile
    161
  - Editing Modem Strings
    163
- Troubleshooting
  164
10 : Modem Sharing

166
- Services
  166
  - Creating a Service
    166
  - Associating Ports with a Service
    166
  - Displaying Current Services
    167
- Sharing Modems
  168
- Examples
  169
  - Configuring the Redirector
    170
  - Configuring the PC Communications Software
    170
11 : Security

172
- Incoming Authentication
  172
  - Character Mode Logins
    172
  - PPP Logins
    174
  - SLIP Logins
    175
- Outgoing Authentication
  175
  - Outgoing Character Mode Connections
    176
  - Outgoing PPP Connections
    176
  - Outgoing SLIP Connections
    176
- Dialback
  176
  - The Dialback Process
    177
  - Dialback from Character Mode
    177
  - Dialback from SLIP/PPP Mode
    178
  - Dialback Using CBCP
    178
  - Potential Dialback Drawbacks
    179
  - Port User Restrictions
    179
- Database Configuration
  180
  - Local (NVR) Database
    180
  - Forcing Execution of Commands
    181
  - Kerberos
    182
  - Configuring Kerberos
    183
  - Radius
    185
  - Securid
    188
  - UNIX Password File
    190
- User Restrictions
  190
  - Privileged Commands
    190
  - IP Address Restriction
    191
  - Controlling Use of Set PPP/SLIP Commands
    191
  - Securing a Port
    191
  - Locking a Port
    192
  - Forcing Execution of Commands
    192
  - Restricting Multiple Authenticated Logins
    192
- Network Restrictions
  193
  - Incoming Telnet/Rlogin Connections
    193
  - Outgoing Rlogin Connections
    193
  - Limiting Port Access
    193
  - Disabling the FTP and HTTP Servers
    194
  - Packet Filters and Firewalls
    194
- Event Logging
  196
  - Setting the Destination
    196
  - Logging Levels
    197
- Examples
  199
  - Database Search Order
    199
  - Terminal User Forced to Execute Command
    199
  - Multiple-User Authentication
    200
  - Outgoing LAN to LAN Connection
    201
  - Creating a Firewall
    201
  - Dialback
    204
- Troubleshooting
  204
12 : Command Reference

205
- Command Descriptions
  205
- About Strings
  206
- Conventions Used in this Chapter
  206
- Modem Commands
  207
  - Define Ports Modem Answer
    207
  - Define Ports Modem Attention
    208
  - Define Ports Modem Busy
    208
  - Define Ports Modem Callerid
    209
  - Define Ports Modem Carrierwait
    209
  - Define Ports Modem Commandprefix
    210
  - Define Ports Modem Compression
    210
  - Define Ports Modem Connected
    211
  - Define Ports Modem Control
    212
  - Define Ports Modem Dial
    212
  - Define Ports Modem Error
    213
  - Define Ports Modem Errorcorrection
    214
  - Define Ports Modem Getsetup
    214
  - Define Ports Modem Init
    215
  - Define Ports Modem Nocarrier
    216
  - Define Ports Modem Nodialtone
    216
  - Define Ports Modem OK
    217
  - Define Ports Modem Reset
    217
  - Define Ports Modem Ring
    218
  - Define Ports Modem Save
    218
  - Define Ports Modem Speaker
    219
  - Define Ports Modem Statistics
    219
  - Define Ports Modem Type
    220
  - Show/Monitor/List Modem
    220
- Ip/Network Commands
  222
  - Clear/Purge Hosts
    222
  - Clear/Purge IP Factory
    222
  - Clear/Purge IP NAT Table
    222
  - Clear/Purge IP Route
    223
  - Clear/Purge IP Security
    223
  - Clear/Purge IP Trusted
    224
  - Connect
    224
  - Disconnect
    226
  - Purge IP Ethernet
    226
  - Rlogin
    226
  - Send
    227
  - Set/Define 80211
    228
  - Set/Define Hosts
    238
  - Set/Define IP All/Ethernet
    239
  - Set/Define IP Create
    241
  - Set/Define IP Domain
    242
  - Set/Define IP Ethernet
    242
  - Set/Define IP Host Limit
    242
  - Set/Define IP Ipaddress
    243
  - Set/Define IP Loadhost
    243
  - Set/Define IP Nameserver
    243
  - Set/Define IP NAT
    244
  - Set/Define IP NAT Table
    245
  - Set/Define IP NBNS
    245
  - Set/Define IP Route
    246
  - Set/Define IP Routing
    247
  - Set/Define IP Security
    247
  - Set/Define IP Subnet
    249
  - Set/Define IP TCP Keepalive
    249
  - Set/Define IP Timeserver
    250
  - Set/Define IP Trusted
    251
  - Show IP Counters
    252
  - Show/Monitor/List Hosts
    252
  - Show/Monitor/List IP
    253
  - Ssh
    255
  - Telnet
    255
  - List Email
    256
- Port Commands
  256
  - Lock
    256
  - Logout Port
    257
  - Purge Port
    257
  - Purge Email
    258
  - Resume
    258
  - Set Noprivileged
    258
  - Snoop Port
    259
  - Define Email
    259
  - Set/Define Ports Access
    261
  - Set/Define Ports Authenticate
    262
  - Set/Define Ports Autobaud
    262
  - Set/Define Ports Autoconnect
    263
  - Set/Define Ports Autostart
    264
  - Set/Define Ports Backward Switch
    265
  - Set/Define Ports Break
    266
  - Define Ports Backspace
    267
  - Set/Define Ports Broadcast
    268
  - Set/Define Ports Character Size
    268
  - Set/Define Ports Command Completion
    269
  - Set/Define Ports Datasend
    270
  - Define Ports Dedicated
    272
  - Define Ports Dialback
    274
  - Set/Define Ports Dsrlogout
    274
  - Set/Define Ports Dtrwait
    275
  - Define Ports Event Email Serialdata
    275
  - Set/Define Ports Flow Control
    276
  - Set/Define Ports Forward Switch
    277
  - Set/Define Ports Inactivity Logout
    278
  - Set/Define Ports Local Switch
    278
  - Set/Define Ports Loss Notification
    279
  - Set/Define Ports Menu
    280
  - Set/Define Ports Modem Emulation
    280
  - Set/Define Ports Name
    281
  - Set/Define Ports Parity
    281
  - Set/Define Ports Password
    282
  - Set/Define Ports Pocketpc
    283
  - Set/Define Ports Preferred
    283
  - Define Ports PPP
    285
  - Define Ports Pppdetect
    288
  - Set/Define Ports Printer
    288
  - Set/Define Ports Security
    289
  - Set/Define Ports Serial Log
    289
  - Set/Define Ports Session Limit
    290
  - Set/Define Ports Signal Check
    290
  - Define Ports SLIP
    291
  - Set/Define Ports Slipdetect
    292
  - Set/Define Ports Speed
    292
  - Set/Define Ports Stop
    293
  - Set/Define Ports Telnet Pad
    293
  - Set/Define Ports Termtype
    294
  - Set/Define Ports Type
    294
  - Set/Define Ports Username
    295
  - Set/Define Ports Verification
    296
  - Set Privileged/Noprivileged
    296
  - Define Protocols RS485
    297
  - Set Session
    298
  - Set PPP
    299
  - Set SLIP
    300
  - Show/Monitor/List Ports
    300
  - Show RS485
    302
  - Show/Monitor Sessions
    302
  - Test Port
    303
  - Unlock Port
    304
- Service Commands
  305
  - Clear/Purge Service
    305
  - Remove Queue
    305
  - Set/Define Service
    306
  - Set/Define Service Banner
    307
  - Set/Define Service Binary
    307
  - Set/Define Service EOJ
    307
  - Set/Define Service Formfeed
    308
  - Set/Define Service Identification
    308
  - Set/Define Service Password
    309
  - Set/Define Service Ports
    309
  - Set/Define Service Postscript
    310
  - Set/Define Service Psconvert
    310
  - Set/Define Service RTEL
    310
  - Set/Define Service SOJ
    311
  - Set/Define Service Tcpport
    311
  - Set/Define Service Telnetport
    312
  - Show/Monitor/List Services
    312
- Server Commands
  315
  - Clear/Purge Menu
    315
  - Initialize Server
    315
  - Set/Define Menu
    316
  - Set/Define Protocol FTP
    318
  - Set/Define Protocol HTTP
    318
  - Set/Define Protocol SSH Mode
    318
  - Set/Define Server Altprompt
    319
  - Set/Define Server BOOTP
    319
  - Set/Define Server BOOTGATEWAY
    320
  - Set/Define Server Broadcast
    320
  - Set/Define Server Buffering
    320
  - Set/Define Server Clock
    321
  - Set/Define Server DHCP
    321
  - Set/Define Server Host Limit
    322
  - Set/Define Server Inactivity
    322
  - Set/Define Server Incoming
    323
  - Set/Define Server Loadhost
    324
  - Set/Define Server Lock
    324
  - Set/Define Server Login Password
    325
  - Set/Define Server Name
    325
  - Set/Define Server Nameserver
    326
  - Set/Define Server Password Limit
    326
  - Set/Define Server Privileged Password
    327
  - Set/Define Server Prompt
    327
  - Set/Define Server RARP
    329
  - Set/Define Server Retransmit Limit
    329
  - Set/Define Server Rlogin
    329
  - Set/Define Server Session Limit
    330
  - Set/Define Server Silentboot
    330
  - Set/Define Server Software
    330
  - Set/Define Server Startupfile
    331
  - Set/Define Server Timezone
    332
  - Show/Monitor/List Menu
    333
  - Show/Monitor/List Server
    333
  - Show/Monitor/List Timezone
    335
  - Show/Monitor Users
    335
  - Source
    335
- Site Commands
  336
  - Define Site Authentication
    336
  - Define Site Bandwidth
    338
  - Define Site Chat
    340
  - Define Site Dial on Hangup
    342
  - Define Site Filter
    342
  - Define Site Idle
    343
  - Define Site IP
    344
  - Define Site MTU
    346
  - Define Site Permanent
    347
  - Define Site Port
    347
  - Define Site Protocol
    349
  - Define Site Telephone
    349
  - Define Site Time
    350
  - Logout Site
    352
  - Purge Site
    352
  - Show/Monitor/List Sites
    353
  - Test Site
    354
- Security Commands
  355
  - Clear/Purge Authentication
    355
  - Clear/Purge Dialback
    356
  - Clear/Purge Filter
    356
  - Clear/Purge SNMP
    357
  - Set/Define Authentication
    357
  - Set/Define Authentication Kerberos
    358
  - Set/Define Authentication Local
    360
  - Set/Define Authentication RADIUS
    361
  - Set/Define Authentication Securid
    363
  - Set/Define Authentication Strictfail
    365
  - Set/Define Authentication TFTP
    366
  - Set/Define Authentication Unique
    367
  - Set/Define Authentication User
    367
  - Set/Define Dialback
    369
  - Set/Define Filter
    370
  - Set/Define Filter any
    371
  - Set/Define Filter Generic
    372
  - Set/Define Filter IP
    373
  - Set/Define FTP
    376
  - Set/Define HTTP
    376
  - Set/Define Logging
    376
  - Set/Define Password
    380
  - Set/Define Server Incoming Secure
    380
  - Set/Define SNMP
    381
  - Show/Monitor/List Authentication
    381
  - Show/Monitor/List Dialback
    382
  - Show/Monitor/List Filter
    382
  - Show/Monitor/List Logging
    383
  - Show/Monitor/List SNMP
    383
  - PC Card Commands
    383
  - Show Pccard
    383
- Navigation/Help Commands
  384
  - Apropos
    384
  - Backwards
    384
  - Broadcast
    384
  - Cls
    385
  - Disk
    386
  - Finger
    390
  - Forwards
    390
  - Help
    391
  - Monitor
    391
  - Netstat
    391
  - Ping
    392
  - Resolve
    392
  - Save
    393
  - Show/Monitor Queue
    394
  - Show Version
    395
  - Zero Counters
    396
A: Environment Strings

397
- Usage
  397
  - A.1.1 Multiple Strings
    397
- Available Strings
  397
  - Usage Examples
    397
B: Show 802.11 Errors

399
- Introduction
  399
- Error Bits
  399
  - Leftmost Number
    399
  - Rightmost Number
    401
C: SNMP Support

404
- Support
  404
- Security
  404
D: Supported RADIUS Attributes

406
- Authentication Attributes
  406
  - Access-Request
    406
  - Access-Accept
    407
- Accounting Attributes
  409
- Examples
  410
Index

412

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