ZyXEL Communications ZyWALL 300 User Manual

 Chapter 1 Introducing the ZyWALL

ZyWALL USG 300 User’s Guide

The CLI allows you to use text-based commands to configure the ZyWALL. You can access it 
using remote management (for example, SSH or Telnet) or via the console port. See the 
Command Reference Guide for more information about the CLI.

You can use the console port to manage the ZyWALL. You have to use CLI commands, which 
are explained in the Command Reference Guide.

The default settings for the console port are as follows.

This section explains some of the ways to start and stop the ZyWALL. These are summarized 
below.

Table 2   Managing the ZyWALL: Console Port

Speed

115200 bps

Data Bits

8

Parity

None

Stop Bit

1

Flow Control

Off

Table 3   Starting and Stopping the ZyWALL

Turning on the power button

A cold start occurs when you turn on the power to the ZyWALL. 
The ZyWALL powers up, checks the hardware, and starts the 
system processes.

Rebooting the ZyWALL

A warm start (without powering down and powering up again) 
occurs when you use the Reboot button in the Reboot screen or 
when you use the 

reboot

 command. The ZyWALL writes all 

cached data to disk, stops the system processes, and then does 
a warm start. 

Using the RESET button

If you press the RESET button, the ZyWALL sets the 
configuration to its default values and then reboots.

Using the 

shutdown

 command

The 

shutdown

 command writes all cached data to disk and 

stops the system processes. It does not turn off the power.You 
have to turn the power off and on manually to start the ZyWALL 
again. You should use this command before you turn off the 
ZyWALL.

Turning off the power button

Power off occurs when you turn off the power to the ZyWALL. 
The ZyWALL simply turns off. It does not stop the system 
processes or write cached data to disk.