Solved: 3512XL, Tera Term serial console I think BAUD is set correctly because the switch responses to commands like enable but the characters are unrecognizable. 7 years, 10 months ago. No Display in Teraterm. Hello, I've installed the mbed USB serial program and the mbed driver shows up under 'COM ports' in Win7 as 'mbed serial port COM 5'.

1. Tera Term Commands
2. Tera Term Scripting
3. Tera Term Command Reference

8.2.2.6 Lab – Establish a Console Session with Tera Term Answers

• Tera Term is an opensource terminal emulator on MS-Windows commonly used by us developers. Tera Term supports a 'rich' macro language that can help in automating user actions. These scripts usually remain personal - rarely shared. In this page, I intend to share the basic scripts that can be used to automate common tasks in the Linux PSP release.
• For Tera Term write down the commands somewhere else and paste it on the console by right clicking. No need of pressing enter. The command will be executed immediately and confirmed. HC 06 AT commands are limited, all I could find are given here. AT: check the connection AT+NAME: Change name. No space between name and command.

Lab – Establish a Console Session with Tera Term (Answers Version)

Answers Note: Red font color or gray highlights indicate text that appears in the Answers copy only.

Topology

Objectives

Part 1: Access a Cisco Device through the Serial Console Port

• Connect to a Cisco device using a serial console cable.
• Establish a console session using a terminal emulator, such as Tera Term.

Part 2: Erasing and Reloading the Cisco Device

• Erase previously saved settings to return the device to the default state.

Background / Scenario

Various models of Cisco routers and switches are used in networks of all types. These devices are initially managed using a local console connection and then routinely managed using a remote connection. Nearly all Cisco devices have a serial console port to which you can connect.

In this lab, you will learn how to access a Cisco device via a direct local connection to the console port, using a terminal emulation program, Tera Term. You will also learn how to configure the serial port settings for the Tera Term console connection. After you have established a console connection with the Cisco device, you will erase the saved configurations and reload the device.

Note: The routers used are Cisco 1941 ISRs with Cisco IOS Release 15.4(3) (universalk9 image). The switches used are Cisco Catalyst 2960s with Cisco IOS Release 15.0(2) (lanbasek9 image). Other routers, switches, and Cisco IOS versions can be used. Depending on the model and Cisco IOS version, the commands available and output produced might vary from what is shown in the labs.

Answers Note: You may choose to use serial console cables to connect to all the Cisco devices because not all Cisco devices have the USB console ports.

Answers Note: If you are using a Cisco 1941 router or other Cisco IOS devices with a mini-USB console port, you can access the device console port using a mini-USB cable connected to the USB port on your computer.

Answers Note: The mini-USB console cable is the same type of mini-USB cables that are used with other electronics devices, such as USB hard drives, USB printers, or USB hubs. These mini-USB cables can be purchased through Cisco Systems, Inc. or other third-party vendors. Please verify that you are using a mini-USB cable, not a micro-USB cable, to connect to the mini-USB console port on a Cisco IOS device.

Required Resources

• 1 Router (Cisco 1941 with Cisco IOS software, release 15.4(3) universal image or comparable)
• 1 Switch (Cisco 2960 with Cisco IOS Release 15.0(2) lanbasek9 image or comparable)
• 1 PC (Windows 10) with terminal emulation program, such as Tera Term)
• DB-9 to RJ-45 console cable to configure the switch or router via the RJ-45 console port
• Mini-USB cable to configure the router via the USB console port if available

Part 1: Access a Cisco Device through the Serial Console Port

You will connect a PC to a Cisco switch or router using a console cable. This connection will allow you to access the command line interface (CLI) and display settings or configure the device

Step 1: Connect a Cisco device and computer using a console cable.

1. Connect the console cable to the RJ-45 console port of the switch or router.If you are using a mini-USB console cable, connect it to mini-USB port of the device.
2. Connect the other cable end to the serial COM port on the computer.
   Note: Serial COM ports are no longer available on most computers today. A USB-to-DB9 adapter can be used with the console cable for console connection between the computer and a Cisco device. These USB-to-DB9 adapters can be purchased at any computer electronics store.
   If using a USB-to-DB9 adapter to connect to the COM port, you may be required to install a driver for the adapter provided by the manufacturer on your computer.
   Note: If you are using a mini-USB cable, you maybe prompted to install a driver.
3. Power up the Cisco device and computer if these devices are not already on.

Step 2: Configure Tera Term to establish a console session with the device.

Tera Term is a terminal emulation program. This program allows you to access the terminal output of the switch. It also allows you to configure the switch.

1. Right-click Start. Enter Tera Term and select Tera Term in the results list.
   Note: If the program is not installed on the system, Tera Term can be downloaded from the following link by selecting the latest Tera Term package release. Tera Term is open source free software.
   https://en.osdn.jp/projects/ttssh2/releases/
2. Click Serial.
   When using the USB-to-Serial cable, select the COM port associated with Prolific USB-to-Serial Comm Port. In this example, COM4 is the serial port used by the computer.When using the mini-USB cable, select the COM port associated with the USB Serial Device. In this example, COM3 is the serial port used by the computer.
3. Click OK to connect to the device.

Part 2: Erasing and Reloading the Cisco Device

For the majority of the labs in this course, it is necessary to start with an unconfigured router and switch. Using a device with an existing configuration may produce unpredictable results. The following instructions prepare a switch or router prior to performing the lab so that previous configuration options do not interfere. Instructions are provided for the 2960 series switches.

1. Enter privileged EXEC mode by typing enable. If prompted for a password, refer to the Answers for assistance.
   Switch> enable
   or
   Router> enable
2. If you are using a switch, remove the VLAN database information file. This file exists only if changes were made to the switch VLAN configurations.
   Switch# delete vlan.dat
   Delete filename [vlan.dat]? [Enter]
   Delete flash:vlan.dat? [confirm] [Enter]
   If there was no VLAN file, this message is displayed:
   %Error deleting flash:vlan.dat (No such file or directory)
3. Remove the startup configuration file from NVRAM.
   Switch# erase startup-config
   or
   Router# erase startup-config
   The responding line prompt is:
   Erasing the nvram filesystem will remove all files! Continue? [confirm]
4. Press Enter to confirm. The response should be:
   Erase of nvram: complete
5. Restart the software using the reload command in privileged EXEC mode.
   Switch# reload
   or
   Router# reload
   The responding line prompt is:
   System configuration has been modified. Save? [yes/no]:
6. Type n, and then press Enter. The responding line prompt is:
   Proceed with reload? [confirm] [Enter]
   The first line of the response is:
   Reload requested by console.
   After the device has reloaded, the line prompt is:
   Would you like to enter the initial configuration dialog? [yes/no]:
7. Type n, and then press Enter. The responding line prompt is:
   Press RETURN to get started! [Enter]

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Connects.

Remarks

If MACRO is not linked to Tera Term, this command runs Tera Term with <command line parameters>, and links it to MACRO. For example:

If MACRO has already been linked to Tera Term and Tera Term is not connected to the host, this command causes Tera Term to connect to the host specified by <command line parameters>.

If MACRO has already been linked to Tera Term and Tera Term has already been connected to the host, this command is ignored.

As a result of this command, the system variable 'result' is set to one of the following values depending on the link and connection status:

Value	Status
0	Link to Tera Term has not been made.
1	Connection to the host has not been made, but link to Tera Term has been made.
2	Both connection and link have been made.

To test the current link and connect status before executing the 'connect' command, use the 'testlink' command.

Communication commands except 'connect', 'cygconnect' and 'testlink' can not be executed before the link is established.

Connection method

There are 3 types of connection you can establish from Tera Term macro:

• Telnet connection (port 23)
• SSH1 or SSH2 connection (port 22)
• General connection
• Connection via COM port

Telnet connections

Using /nossh is strongly recommended. Without this parameter Tera Term will start connecting with the same method (telnet or SSH) that was used during last time when teraterm.ini file was saved. In case it was SSH than your macro will try to connect via SSH and will eventually fail.

SSH connections

This way will start SSH connection without defining whether SSH1 or SSH2 has to be used.

Parameters /1 and /2 force to use SSH1 or SSH2 method.

Note: path to /keyfile should be relative to Teraterm directory. Absiolute path does not work.

Above 9 ways allow to skip popup dialog and pass username and password directly from macro. Please note that /auth=password or /auth=publickey or /auth=challenge is the parameter saying that authentication will be done by entering password or private-key-file thus you should not replace the word 'password' or the word 'publickey' in it with actual password.

Above 3 ways allow to skip popup dialog and pass username directly from macro.

Above 9 ways pass username and authentication method directly from macro, and the popup asks for password.

General connection

Note: This option value is connecting timeout value(per seconds). Connecting to myserver could be canceled after timeout has occurred with the specified value. Conversely, no action if the value is zero. The default value is zero. Also this value would be saved as `ConnectingTimeout' entry in teraterm.ini file.

Connections via COM port

Here x represents COM port number. For example to connect via COM port 1 the command will look like: connect '/C=1'

Examples

Note

1. In these examples parameters shown with Italic font have to be replaced with their actual values.
2. The password can contain space character. To represent space inside the password replace it with '@' character. If '@' character itself is part of the password than it has to be replaced with 2 consecutive '@' characters '@@'.
3. Please remember that entering actual username and password in Tera Term macro will cause them to be stored as an open text and it is your responsibility to keep such macro is secure location.
4. When a user re-connect the remote host soon after disconnecting the server, a user could not connect the server. For more detail, refer to 'here'.

NEWS CONTENTS

• 200412 : Macro command connect syntax description ( Macro command 'connect' syntax description, )

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Macro command 'connect' syntax description

Three types of connections
There are 3 types of connection you can establish from TeraTerm macro:

- Telnet connection (port 23)
- SSH1 or SSH2 connection (port 22)
- Connection via COM port

Telnet connections

Quote:

connect 'myserver:23 /nossh'

or

Tera Term Commands

Quote:

connect 'myserver:23 /telnet'

or

Quote:

connect 'myserver:23'

Using /nossh is strongly recommended. Without this parameter TeraTerm will start connecting with the same method (telnet or SSH) that was used during last time when teraterm.ini file was saved. In case it was SSH than macro will try to connect via SSH and will eventually fail.

SSH connections

Quote:

connect 'myserver /ssh'

This way will start SSH connection without defining whether SSH1 or SSH2 has to be used.

Quote:

connect 'myserver /ssh /1'

or

Quote:

connect 'myserver /ssh /2'

Parameters /1 and /2 force to use SSH1 or SSH2 method.

Quote:

connect 'myserver /ssh /auth=password /user=username /passwd=password'

or

Quote:

connect 'myserver /ssh /1 /auth=password /user=username /passwd=password'

or

Quote:

connect 'myserver /ssh /2 /auth=password /user=username /passwd=password'

or

Quote:

connect 'myserver /ssh /auth=publickey /user=username /passwd=password /keyfile=private-key-file'

or

Quote:

connect 'myserver /ssh /1 /auth=publickey /user=username /passwd=password /keyfile=private-key-file'

or

Quote:

connect 'myserver /ssh /2 /auth=publickey /user=username /passwd=password /keyfile=private-key-file'

Above 6 ways allow to skip popup dialog and pass username and password directly from macro. Please note that /auth=password or /auth=publickey is the parameter saying that authentication will be done by entering password or private-key-file thus you should not replace the word 'password' or the word 'publickey' in it with actual values. Only the words shown above with italic font have to be substituted.

Important note: The password can contain space character. To represent space inside the password replace it with @ character. If @ character itself is part of the password than it has to be replaced with 2 consecutive @ characters @@.

Please remember that entering actual username and password in TeraTerm macro will cause them to be stored as an open text and it is your responsibility to keep such macros in secure place.

A little bit better practice is to use getpassword and passwordbox commands that store encrypted passwords in the file.

Quote:

connect 'myserver /ssh /auth=password /user=username /ask4passwd'

or

Quote:

connect 'myserver /ssh /1 /auth=password /user=username /ask4passwd'

or

Quote:

connect 'myserver /ssh /2 /auth=password /user=username /ask4passwd'

or

Quote:

connect 'myserver /ssh /auth=publickey /user=username /ask4passwd /keyfile=private-key-file'

or

Quote:

Tera Term Scripting

connect 'myserver /ssh /1 /auth=publickey /user=username /ask4passwd /keyfile=private-key-file'

or

Quote:

connect 'myserver /ssh /2 /auth=publickey /user=username /ask4passwd /keyfile=private-key-file'

Above 6 ways pass username and authentication method directly from macro, and the popup asks for password.

Connections via COM port

Quote:

connect '/C=x'

Here x represents COM port number. For example to connect via COM port 1 the command will look like: connect '/C=1'

About setsync
It is highly recommended to use the macro command

Quote:

setsync 1

right after the command connect. This command switches TeraTerm into synchronous communication mode in which the buffer never overflows. See TeraTerm Macro help for more details.
_________________
Thanks.
Best regards,
// Boris

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Tera Term Command Reference

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