ZyXEL Communications ZyWALL 2 Plus - Packet Direction Examples; Figure 115 Default Block Traffic from WAN to DMZ Example

Chapter 11 Firewall
ZyWALL 2 Plus User’s Guide
183
Figure 115 Default Block Traffic From WAN to DMZ Example
11.3 Packet Direction Examples
Firewall rules are grouped based on the direction of travel of packets to which they apply. This
section gives some examples of why you might configure firewall rules for specific
connection directions.
By default, the ZyWALL allows packets traveling in the following directions.:
• LAN to LAN These rules specify which computers on the LAN can manage the
ZyWALL (remote management) and communicate between networks or
subnets connected to the LAN interface (IP alias).
Note: You can also configure the remote management
settings to allow only a specific computer to manage
the ZyWALL.
• LAN to WAN These rules specify which computers on the LAN can access which
computers or services connected to the WAN. See Section 11.5 on page
188 for an example.