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 Chapter 1 Introducing the ZyWALL

ZyWALL USG 50 User’s Guide

You can use the console port to manage the ZyWALL using CLI commands. See 
the Command Reference Guide for more information about the CLI.

The default settings for the console port are as follows.

Here are some of the ways to start and stop the ZyWALL.

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.  

Table 2   Console Port Default Settings

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

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 the local storage, 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.

Clicking 
Maintenance > 
Shutdown > 
Shutdown or 
using the shutdown 
command

Clicking Maintenance > Shutdown > Shutdown or using the 
shutdown

 command writes all cached data to the local storage and 

stops the system processes. Wait for the device to shut down and 
then manually turn off or remove the power. It does not turn off the 
power. 

Disconnecting the 
power

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 local storage.