CLI Execution via SSH

Zyxel_Claudia

With Firmware 4.90, Zyxel has introduced CLI Execution via SSH for its switches, enabling administrators to execute Command Line Interface (CLI) commands directly over SSH. This enhancement allows for easy scripting and automation, streamlining configuration management and monitoring tasks. By supporting multiple commands in a single SSH session, this feature significantly improves efficiency for tasks like bulk configuration updates.

Overview of CLI Execution via SSH

CLI Execution via SSH provides administrators the ability to connect to a Zyxel switch using SSH and execute a set of CLI commands. This approach is particularly useful for automated scripts, which can now include multiple configuration commands in a single session. It allows administrators to maintain and update configurations on numerous switches, saving time and reducing the potential for human error.

Key Benefits

1. Automated Configuration: Ideal for configuring multiple switches simultaneously, removing the need for individual manual configurations.
2. Scripted Operations: Enables administrators to write scripts that automate repetitive tasks, such as port configurations or status checks.
3. Efficient Management: Allows administrators to configure switches in real time and apply batch configurations, which is ideal for dynamic environments.

How to Use CLI Execution via SSH

To take advantage of this feature, follow these steps:

1. Establish an SSH Connection

1. Open a CLI on the laptop.
2. Connect to the switch using the SSH command, specifying the switch’s IP address and your administrator credentials.
3. Execute CLI Commands

Once connected, you can enter CLI commands directly into the SSH session. Each command is limited to 512 characters, and you can include multiple commands by separating them with a semicolon (;), which acts as an Enter key.

Example Script: Reconfiguring Switch Port 10 via SSH

ssh admin@192.168.1.1 configure terminal;interface port-channel 10; qos priority 3;broadcast-limit 200; multicast-limit 200; dlf-liit 200

Additional Notes

• Command Length Limit: Device can accept CLI syntax of up to 512 characters for each SSH connection.
• Multi-Command Support: Commands can be separated by semicolons (;), allowing for sequential execution in a single SSH session.y.

Summary

CLI Execution via SSH in Zyxel Firmware 4.90 brings powerful automation capabilities to network administrators, enabling efficient configuration, monitoring, and management of Zyxel switches. With support for command scripting and Public Key Authentication, this feature provides an ideal solution for secure, automated network management.