User guide

Contents 5
Configuring SSH....................................................................................................................................................67
Accessing Attached Devices..................................................................................................................................68
Securing Console Access.......................................................................................................................................69
Configuring Port Buffering....................................................................................................................................70
Configuring User Menus .......................................................................................................................................70
Chapter 15 Configuring SNMP
In This Chapter ......................................................................................................................................................71
About SNMP and the Digi One and PortServer TS 2/4 Agent..............................................................................71
Configuration Procedure: Web Interface...............................................................................................................72
Chapter 16 Configuring Users
In This Chapter ......................................................................................................................................................73
About Configuring Users.......................................................................................................................................73
Common User Features .........................................................................................................................................74
Configuring a User: Web Interface........................................................................................................................74
Configuring a User: Command Line Examples.....................................................................................................75
Chapter 17 Managing the OS and Configuration
In This Chapter ......................................................................................................................................................76
Upgrading the Firmware........................................................................................................................................76
Copying the Configuration to and from a Remote Host........................................................................................77
Resetting the Configuration to Defaults ................................................................................................................79
Chapter 18 Configuring Power Over the Serial Ports
In This Chapter ......................................................................................................................................................80
Serial Power Feature..............................................................................................................................................80
Configuring RI Power............................................................................................................................................81
Configuring DTR Power........................................................................................................................................81
Serial Power Table.................................................................................................................................................82
Chapter 19 Configuration Examples
In This Chapter ......................................................................................................................................................83
Terminal Server Configuration Without RealPort.................................................................................................84
Terminal Server Configuration Using Autoconnection.........................................................................................85
Terminal Server Configuration Using RealPort ....................................................................................................86
Chapter 20 Digi One/PortServer TS 2/4 Troubleshooting
In This Chapter ......................................................................................................................................................87
Symptom: Digi One/PortServer TS 2/4 Does Not Boot........................................................................................88
Symptom: Cannot Telnet to the Digi One/PortServer TS 2/4 ...............................................................................88
Symptom: Trouble Accessing a Port .....................................................................................................................89
Running Digi One/PortServer TS 2/4 Customer Diagnostics ...............................................................................89
Key to Interpreting Digi One/PortServer TS 2/4 LEDs.........................................................................................90
Verifying TFTP on a UNIX System......................................................................................................................90
Troubleshooting TFTP Problems...........................................................................................................................91
Resetting Digi One/PortServer TS 2/4 Configuration to Defaults ........................................................................92
Verifying the Digi One/PortServer TS 2/4 IP Address..........................................................................................92
Checking for Duplicate IP Addresses....................................................................................................................93
Pinging an IP Address............................................................................................................................................93