Chapter 10 Firewall Screens; Access Methods; Firewall Policies Overview - ZyXEL Communications ZyWall 70 User Manual

This chapter shows you how to configure your ZyWALL firewall.

10.1 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. SMT screens allow you to activate the firewall. CLI commands
provide limited configuration options and are only recommended for advanced users, please
refer to Appendix M on page 659

10.2 Firewall Policies Overview

Firewall rules are grouped based on the direction of travel of packets to which they apply:
• LAN to LAN/ZyWALL
• LAN to WAN
• LAN to DMZ
Note: The LAN includes both the LAN port and the WLAN.
By default, the ZyWALL's stateful packet inspection allows packets traveling in the following
directions:
• LAN to LAN/ZyWALL
This allows computers on the LAN to manage the ZyWALL and communicate between
networks or subnets connected to the LAN interface.
• LAN to WAN
• LAN to DMZ
• WAN to DMZ
• DMZ to WAN
By default, the ZyWALL's stateful packet inspection blocks packets traveling in the following
directions:
• WAN to LAN
• WAN to WAN/ZyWALL

Chapter 10 Firewall Screens

C
H A P T E R
Firewall Screens
for firewall CLI commands.
• WAN to LAN
• WAN to WAN/ZyWALL
• WAN to DMZ
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• DMZ to LAN
• DMZ to WAN
• DMZ to DMZ/ZyWALL
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