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ZyWALL (ZLD) CLI Reference Guide 19
CHAPTER 1
Command Line Interface
This chapter describes how to access and use the CLI (Command Line Interface).
1.1 Overview
If you have problems with your ZyWALL, customer support may request that you issue some of
these commands to assist them in troubleshooting.
Use of undocumented commands or misconfiguration can damage the
ZyWALL and possibly render it unusable.
1.1.1 The Configuration File
When you configure the ZyWALL using either the CLI (Command Line Interface) or the web
configurator, the settings are saved as a series of commands in a configuration file on the ZyWALL.
You can store more than one configuration file on the ZyWALL. However, only one configuration file
is used at a time.
You can perform the following with a configuration file:
• Back up ZyWALL configuration once the ZyWALL is set up to work in your network.
• Restore ZyWALL configuration.
• Save and edit a configuration file and upload it to multiple ZyWALLs (of the same model) in your
network to have the same settings.
Note: You may also edit a configuration file using a text editor.
1.2 Accessing the CLI
You can access the CLI using a terminal emulation program on a computer connected to the console
port, from the web configurator or access the ZyWALL using Telnet or SSH (Secure SHell).
Note: The ZyWALL might force you to log out of your session if reauthentication time,
lease time, or idle timeout is reached. See Chapter 26 on page 229 for more
information about these settings.