A lot of our switches have a default baud rate of 9600, while all firewalls out of our portfolio and access points have a baud rate of 115200. The speed is measured in baud, and the speed is also referred to as baud rate. We are, however, only interested in the speed the rest stays as per default: In this menu, you can set different things regarding the serial port communication. Make then sure to enter the menu Setup > Serial port On TeraTerm, you will be prompted to choose the input - select the serial input and select the COM interface listed previously in the device manager: Once this is done, download TeraTerm using the above-listed link and install the application. Once this is done, within your device manager, in most cases, you can see a "COM" interface listed: Now that the hardware side of things is clarified, let's move back to the software side.Įventually, you might have to install additional drivers packaged with the USB-to-RS232 cable or install generic drivers for the application. Some of our smaller firewalls have an RJ-45 console connection instead of the RS232-connection and have console cables within the packaging content:īelow you can see a picture of both an RS232 console port, mostly prominent on professional firewall and switch hardware, as well as the RJ-45 on our small business routers (such as a USG20W, e.g.): Use a USB-to-RS232 connector-cable (also known as "serial connection" or "SUB-D 9-pol") and connect to your PC as well as to the router - the serial cable should look like this In this tutorial, we will use puTTY for SSH and TeraTerm for console connection.ĭisclaimer: We have no affiliation with neither puTTY nor TeraTerm and showcase the use of these programs for demonstration and learning purposes - use of these applications happen at your own risk. You can either use a terminal console software such as PuTTY or TeraTerm. Table of Content 1) Using the Console Cableġ.2 CLI-access via Console Cable (using TeraTerm)ġ.3 CLI-access via Web GUI (Web Interface)ġ.4 What devices will these methods work on?ġ.5 What can I do with the CLI? 2) Debug the Firewall after Reboot/Crash Issuesġ) Using the Console Cable 1.1 The Software
This guide will give you great insight into how to access your Zyxel device's CLI (Command Line Interface). The command-line interface is a management interface that can be reached via several ways, including SSH and serial cable/console cable connection. It shows what console cable to use, how to login and gain console access via Putty & TeraTerm, access Web GUI CLI, and how to use the debug level 8 command for troubleshooting reboot/crash issues/problem. This article shows how to use the CLI/Command line interface via console cable using USG FLEX, a VPN firewall, an XGS-Switch or even a professional access point like a WAX510D.
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