ZyXEL Communications unified security gateway User Manual

Chapter 6 Configuration Basics

ZyWALL USG 20/20W User’s Guide

Use these screens to upload, download, delete, or run scripts of CLI commands. 
You can manage

• Configuration files. Use configuration files to back up and restore the complete 

configuration of the ZyWALL. You can store multiple configuration files in the 

ZyWALL and switch between them without restarting.

• Shell scripts. Use shell scripts to run a series of CLI commands. These are useful 

for large, repetitive configuration changes (for example, creating a lot of VPN 

tunnels) and for troubleshooting.

You can edit configuration files and shell scripts in any text editor.

The ZyWALL can generate a file containing the ZyWALL’s configuration and 
diagnostic information. It can also capture packets going through the ZyWALL’s 
interfaces so you can analyze them to identify network problems. 

Use this to shutdown the device in preparation for disconnecting the power.

Always use Maintenance > Shutdown > Shutdown or the shutdown 
command before you turn off the ZyWALL or remove the power. Not 
doing so can cause the firmware to become corrupt.