Packet Direction Examples; Figure 109 Default Block Traffic From Wan1 To Dmz Example - ZyXEL Communications ZYWALL 35 User Manual

To set the ZyWALL to by default silently block traffic from WAN 1 from going to the DMZ
interfaces, you would find where the From WAN1 row and the To DMZ column intersect and
set the field to Drop as shown.

Figure 109 Default Block Traffic From WAN1 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
• LAN to WAN
1
ZyWALL 5/35/70 Series User's Guide
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).
You can also configure the remote management
settings to allow only a specific computer to
manage the ZyWALL.
These rules specify which computers on the LAN can access which
computers or services connected to WAN 1. See
229 for an example.
Chapter 11 Firewall
Section 11.5 on page
223