ZyXEL Communications zywall 50 User Manual
ZyWALL 50 Internet Security Gateway
Introducing the ZyWALL Firewall
8-1
Chapter 8
Introducing the ZyWALL Firewall
This chapter shows you how to get started with the ZyWALL firewall.
8.1 Remote Management and the Firewall
When SMT menu 24.11 is configured to allow management from the WAN, it overrides the firewall. See the
Remote Management chapter for details.
Remote Management chapter for details.
8.2 Access
Methods
The web configurator is, by far, the most comprehensive firewall configuration tool your ZyWALL has to
offer. For this reason, it is recommended that you configure your firewall using the web configurator, see the
following chapters for instructions. SMT screens allow you to activate the firewall and view firewall logs.
CLI commands provide limited configuration options and are only recommended for advanced users, please
refer to the appendix of firewall CLI commands.
offer. For this reason, it is recommended that you configure your firewall using the web configurator, see the
following chapters for instructions. SMT screens allow you to activate the firewall and view firewall logs.
CLI commands provide limited configuration options and are only recommended for advanced users, please
refer to the appendix of firewall CLI commands.
8.3 Using ZyWALL SMT Menus
From the main menu enter 21 to go to Menu 21 - Filter Set and Firewall Configuration to display the
screen shown next.
screen shown next.
Figure 8-1 Menu 21 — Filter and Firewall Setup
8.3.1 Activating the Firewall
Enter option 2 in this menu to bring up the following screen. Press [SPACE BAR] and then [ENTER] to
select Yes in the Active field to activate the firewall. The firewall must be active to protect against Denial of
Service (DoS) attacks. Additional rules may be configured using the web configurator.
select Yes in the Active field to activate the firewall. The firewall must be active to protect against Denial of
Service (DoS) attacks. Additional rules may be configured using the web configurator.
Menu 21 - Filter and Firewall Setup
1. Filter Setup
2. Firewall Setup
3. View Firewall Log
2. Firewall Setup
3. View Firewall Log