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Page 158 Configuring SNMP 90030500B

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Default Chapter5
- Table of Contents5
About this User's Guide17
- Where Do I Look for more Information17
- Which Chapters Should I Read18
- Document Conventions19
- Other Portserver II Documentation19
Chapter 1 Introduction21
- When Should I Read this Chapter21
- In this Chapter21
- Features and Functions22
- Basic Operation25
- Configuration of Serial Ports25
- Terminals and Users25
- Printers25
- Modems and Dial-Up Links26
- Ppp26
- SLIP and CSLIP27
- Filters and Scripts27
- Radius27
- Frame Relay27
- Snmp28
- Realport Protocol28
- Authentication and Security28
- Ethernet Connection and Dynamic IP Addressing29
- Statistics and Logging29
- Remote Configuration29
- Expanding Portserver II with Additional Ports30
- Description of Portserver II Hardware30
- Typical Applications31
- Terminal Server Configuration - Local Devices and Realport31
- Terminal Server Configuration - Remote Devices and Realport32
- Terminal Server Configuration - Multiple Remote Devices at Several Locations33
- TIP - Leased Lines34
- Communications Server Configuration - Remote Dial-In Users at Several Locations35
- Communications Server Configuration - Dial-Out Access to the Internet36
- Specifications37
- Network Compatibility37
- Ports37
- Power Requirements37
- Environment Requirements37
- Dimensions37
- Limits38
Chapter 2 Operation39
- When Should I Read this Chapter39
- In this Chapter39
- Portserver II Front Panel40
- LED Indicators40
- Alphanumeric Display40
- Pushbuttons41
- Interpreting the LED Indicators42
- Serial Port Status42
- Ethernet Activity43
- Portserver II Side and Rear Panels45
- Side Panel45
- Power On/Off Switch and Socket45
- EBI out Connector45
- Thinnet Connector, Twisted Pair Connector46
- Rear Panel46
Chapter 3 Installation47
- When Should I Read this Chapter47
- In this Chapter47
- Before You Begin48
- Surveying the Installation Site48
- Interference Limitation48
- Recommended Maximum Distance Limitations50
- Ethernet50
- EIA RS-232 Serial Ports50
- Inspecting Portserver II51
- Tools and Equipment Required51
- Site Preparation52
- Site Environment52
- Safe Installation Practices53
- Installing and Connecting Portserver II54
- General Procedure54
- Connecting Portserver II to the Ethernet LAN54
- Connecting Portserver II to Serial Devices55
- General55
- Ten Pin RJ-4556
- Eight Pin RJ-4557
- Six Pin RJ-1158
- Four Pin RJ-1159
- Connecting the Configuration Terminal60
- Connecting to Terminals and Pcs61
- Connecting to Modems63
- Altpin64
- Connecting to Printers65
- Connecting to Frame Relay67
- Wiring Ports for Specific Devices68
- Dev=Host (Computer or Other Devices)68
- Dev=Hdial69
- Dev=Hio69
- Dev=Term (Terminals)69
- Dev=Prn (Printers)70
- Dev=Min (Modem In)70
- Dev=Mout (Modem Out)70
- Dev=Mio (Modem in & Out)71
- Connecting to the External Bus Interface72
Chapter 4 Basic Configuration75
- When Should I Read this Chapter75
- In this Chapter75
- Entering Configuration Commands76
- Abbreviations76
- Editing Keystrokes77
- Specifying the Range of Set Configuration Commands78
- Saving Configuration Changes to Flash ROM79
- On-Line Help80
- Help Menu80
- Command-Specific Help80
- Logging on to Portserver II81
- Configuring the Ethernet Connection82
- Configuring Portserver II over the Ethernet84
- Running RARP on the Server84
- Testing the Network Connection85
- Portserver II TCP/IP Port Numbers86
- Configuring a User87
- Creating a New User87
- Using the IP Pool94
- Creating a Pool94
- Assigning a Device to Use an Address from the IP Pool94
- Configuring a User for Manual or Automatic Login and Connection to a Host95
- Configuring a User for Manual Login95
- Configuring a New User for Automatic Login and Connection97
- Providing a Navigation Menu for each User98
- Removing a User99
- Changing a User's Name99
- Users Logging on to Portserver II100
- Using Configuration Commands101
Chapter 5 Configuring Terminals103
- When Should I Read this Chapter103
- In this Chapter103
- Setting up a Terminal104
Chapter 6 Configuring Security107
- When Should I Read this Chapter107
- In this Chapter107
- Levels of Security108
- Root Login109
- Regular User Login110
- Regular User Login with Password Authentication110
- Regular User Login Without Password111
- Autoconnect User Login112
- Auto-Connection of any User on One or more Ports112
- Auto Connection of a User with Password Protection113
- Auto Connection of a User Without a Password113
- Autoconnect Port114
Chapter 7 Configuring Multiple Sessions and Multiple Screens115
- When Should I Read this Chapter115
- In this Chapter115
- General116
- Multiple Sessions116
- Configuring Multiple Sessions116
- Starting Multiple Sessions117
- Controlling Multiple Sessions117
- Telnet Sessions117
- Rlogin Session118
- Switching to Another Session118
- Closing a Session119
- An Example of Multiple Telnet Sessions120
- Multiple Screens123
- Configuring Terminals for Multiple Screens123
- How to Use Multiple Screen Sessions123
Chapter 8 Configuring WAN Connections125
- When Should I Read this Chapter125
- In this Chapter125
- WAN Connections Explained126
- Incoming WAN Connections128
- How Incoming Connections Are Established128
- Configuring Incoming Connections128
- Verifying the Incoming Connection132
- Outgoing WAN Connections133
- How Outgoing Connections Are Established133
- How Ports Are Used134
- Configuring Outgoing Connections134
- Verifying the Outgoing Connection139
- Bidirectional WAN Connections139
- Filters140
- General140
- Creating a Filter140
- Syntax for Filter Stanzas140
- Configuring Actions that will Not be Taken140
- Applying Actions to Source or Destination141
- Applying Actions to Inbound or Outbound Packets141
- Applying Actions to Specific Types of Packet141
- Examples of Filters that Perform Common Functions142
- Building a Firewall with Passpacket Filters142
- A Filter that will Block All Except Specific Ftp Packets142
- A Filter that will Bring up a Connection When It Detects IP Packets142
- A Filter that will Bring up a Connection When It Detects any IP Packet Except DNS143
- Tracing Messages143
Chapter 9 Configuring Modem Connections145
- When Should I Read this Chapter145
- In this Chapter145
- About Modem Connections146
- Configuring Your Modem146
- Configuring the Modem Connection147
- Dialer and Login Scripts149
- Creating or Editing a Script149
- Script Commands150
- State Parameters151
- Escape Commands152
- Running a Script153
- Examples of Scripts that Perform Specific Functions153
- A Login Script153
- A Script that Tries Alternate Numbers154
- A Script that Tries the same Number Multiple Times154
- A Script to Initialize a Hayes-Compatible Modem155
- A Script to Test a Specific Modem155
- Modem Pools156
- Telnet and Modems157
- Configuring CU and UUCP to Dial out158
- Description of Operation159
- Configuring Your System159
- RTTY Program161
Chapter 10 Configuring TCP/IP Routing163
- When Should I Read this Chapter163
- In this Chapter163
- Types of Routing Available164
- Description of Passive Routing165
- Description of Active Routing165
- Passive Routing166
- Active Routing167
Chapter 11 Configuring Realport Connections169
- When Should I Read this Chapter169
- In this Chapter169
- Realport Basics170
- Configuring Portserver II for Realport Operation171
Chapter 12 Configuring SNMP173
- When Should I Read this Chapter173
- In this Chapter173
- General174
- Configuring the SNMP Agent175
- Monitoring SNMP Status on Portserver II176
- Supported SMNP Variables177
Chapter 13 Configuring Printer Connections181
- When Should I Read this Chapter181
- In this Chapter181
- General182
- Configuring a Printer Connection182
- Printing a File Using Telnet or Rsh184
- Using Telnet184
- Using Rsh184
- Troubleshooting184
- Printing Using Lpd Protocol185
- Configuring the Printer185
- Queue Name Examples186
Chapter 14 Configuring Frame Relay187
- When Should I Read this Chapter187
- In this Chapter187
- What Is Frame Relay188
- Specifying Frame Relay189
- Designing a Network to Use with Frame Relay190
- Configuring a Frame Relay Port192
Chapter 15 Configuring RADIUS195
- When Should I Read this Chapter195
- In this Chapter195
- How Does RADIUS Work196
- Configuring RADIUS197
- Configuring RADIUS on a Server198
Chapter 16 Remote Configuration199
- When Should I Read this Chapter199
- In this Chapter199
- When Should I Use Remote Configuration200
- Upgrading Portserver II Software200
- Editing Portserver II's Configuration from a Remote Host202
- Copying a Portserver II Configuration File to a Host202
- Editing the Configuration File203
- Restoring a Portserver II Configuration File from a Host204
- TFTP Error Messages on Portserver II205
Chapter 17 Troubleshooting207
- When Should I Read this Chapter207
- In this Chapter207
- Power on Self Test208
- Interpreting the Alphanumeric Display209
- User Diagnostics210
- Terminal Diagnostics210
- Front Panel Display Diagnostics212
- Basic Test Descriptions212
- Test 1 - Panel Light Test212
- Test 2 - Memory Test212
- Test 3 - Timer Test213
- Test 4 - Built-In UART and External EBI Internal Loopback Test213
- Test 5 - Built-In UART and External EBI External Loopback Test213
- Test 6 - Test Ethernet Internal Loopback213
- Test 7 - Test Ethernet External Loopback213
- Test 8 - Test Flash ROM213
- Test 9 - Watchdog Timer Test213
- Resetting Portserver II to Factory Defaults214
- Statistics215
- Viewing Statistics215
- Clearing Statistics215
- Interpretation of Statistics216
- IP Statistics216
- ICPM Statistics218
- TCP Statistics220
- UDP Statistics221
- Interface Statistics222
- Frame Statistics223
- Frame Relay Statistics224
- Hardware Error Counts229
- Trace Messages230
- Enabling Trace Messages230
- Explanation of Trace Messages231
- Critical Trace Messages231
- Non-Specific Trace Message231
- ARP Messages232
- Serial Messages232
- DNS Messages233
- Ethernet Messages233
- Frame Relay Messages233
- IP Messages234
- Netcx Messages235
- NETD Messages236
- INETD Messages237
- PPP Messages238
- Routed Messages239
- TCP Messages239
- WAN Messages239
- Dialer Messages242
- Warning Trace Messages243
- ARP Messages243
- DNS Messages243
- Frame Relay Messages243
- Telnet Messages244
- IP Messages244
- Forwarder Messages246
- Routed Messages246
- Netcx Messages247
- NETD Messages248
- INETD Messages248
- Serial Messages248
- User Messages248
- RADIUS Messages250
- PPP Messages251
- VJ (Van Jacobsen) Messages252
- Wan Messages253
- Dialer Messages254
- Tracing the Route to a Host255
- Examples of Printout Generated by the Traceroute Command256
- Troubleshooting Frame Relay257
Chapter 18 Digi Support Services259
- When Should I Read this Chapter259
- In this Chapter259
- Web Server: Access to Digi Information260
- Purpose260
- Url260
- Internet FTP Server: Access to Digi Drivers260
- Address260
- Tips on Using the FTP Server260
- Digi BBS: Access to Drivers and Information261
- Purpose261
- Modem Support261
- Telephone Numbers261
- Faxback Server: Information by Fax261
- How to Use the Faxback Server261
- Customer Service262
- Purpose262
- How to Reach Customer Service262
- Return Procedures262
- Warranty Information262
- Return Procedure262
- Technical Support263
- Introduction263
- Support Process263
- When You Call Technical Support263
- How to Contact Digi Technical Support263
Glossary265
Index271

Brand	Digi
Model	PortServer II
Category	Server
Language	English

Digi PortServer II User Manual

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