Enter 23 as the port number to be used for the Telnet session in the Port field. Mac Computer using Terminal Access the CLI through Telnet using PuTTY To make a Telnet connection to the switch, choose your platform: The default idle session timeout for Telnet is 10 minutes. The Telnet sessions disconnect automatically after the idle time configured in the switch has passed. Access the CLI of the Switch through Telnet You should now have successfully remotely accessed the CLI of your switch through SSH using the Terminal. Enter the username and password of the switch in the User Name and Password fields accordingly. Once prompted by the message asking if you want to continue connecting, enter Yes. Enter the ssh command and then the IP address to access the CLI of the switch. Go to Applications > Utilities then launch the Terminal.app application. In this example, the macOS Sierra is used and the Terminal version is 2.7.1. Note: The images may vary according to the version of the operating system of the Mac computer that you are using. Access the CLI through SSH using Terminal You should now have successfully remotely accessed the CLI of your switch through SSH using PuTTY. Enter the username and password of the switch in the login as, User Name and Password fields accordingly. Once you have ensured you entered the correct IP address in the Host Name field in Step 4, click Yes to update the Rivest Shamir Adleman 2 (RSA2) key to include the new switch. This warning lets you know that it is possible that you are connecting to another computer pretending to be the switch. If this is your first time using SSH to connect to the switch, you may receive a Security Breach Warning. Note: In this example, Only on clean exit is chosen. (Optional) In the Close window on exit area, click the radio button to choose the behavior of the SSH window upon exit. (Optional) Click Save to save the session. Note: In this example, SSH Sessions is used. (Optional) To save the session, enter the session name in the Saved Sessions field. In the Connection type area, click the SSH radio button to choose SSH as your method of connection with the switch. Enter 22 as the port number to be used for the SSH session in the Port field. Note: In this example, 192.168.100.105 IP address is used. Enter the hostname or IP address of the switch that you want to remotely access in the Host Name (or IP address) field. Launch the PuTTY client on your computer. In this example, the Windows 7 Ultimate is used and the PuTTY version is 0.63. Note: The images may vary according to the version of the Windows operating system you are using. Mac Computer using Terminal Access the CLI through SSH using PuTTY To make an SSH connection to the switch, choose your platform: The default idle session timeout for SSH is 10 minutes. ![]() The SSH sessions disconnect automatically after the idle time configured in the switch has passed. Important: Before you make an SSH or Telnet connection to the switch, you must set the IP address for the switch. It is also known as the shell or the console. Terminal - An application that is pre-installed in every Mac OS X computer.You can download an installer here and install in your Windows computer. PuTTY - A standard Telnet and SSH client.This article provides instructions on how to access the CLI of your switch through SSH or Telnet using the following clients: Note: For instructions on how to configure the Transmission Control Protocol (TCP) and User Datagram Protocol (UDP) settings on your switch, click here. You must also enable the Telnet and SSH service on your switch first before you can access it remotely. In order to remotely access the CLI of your switch, you must use an SSH or Telnet client. Certain tasks such as Layer 3 mode enabling can only be performed through the CLI. If you prefer to configure using terminal commands on your switch through the CLI rather than the web-based utility, this would be an easier alternative. Accessing the CLI allows commands to be entered in a terminal-based window. The Cisco Small Business Managed Switches can be remotely accessed and configured through the Command Line Interface (CLI).
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