ZyXEL Communications NBG410W3G - Manual (Page 168)

Chapter 9 Firewall
NBG410W3G Series User’s Guide
168
9.2 Packet Direction Matrix
The ZyXEL Device’s packet direction matrix allows you to apply certain security settings
(like firewall) to traffic flowing in specific directions.
For example, click SECURITY > FIREWALL to open the following screen. This screen
configures general firewall settings.
Figure 97 SECURITY > FIREWALL > Default Rule
Packets have a source and a destination. The packet direction matrix in the lower part of the
screen sets what the ZyXEL Device does with packets traveling in a specific direction that do
not match any of the firewall rules.
To set the ZyXEL Device to block traffic from WAN 1 from going to the DMZ interfaces, find
where the From WAN1 row and the To DMZ column intersect and set the field to Drop as
shown.
A specific interface A specific interface
From To