User's Manual

Chapter 12 Firewall Configuration
P-660HW-Tx v3 User’s Guide
178
Figure 113 Firewall Rules
The following table describes the labels in this screen.
Table 65 Firewall Rules
LABEL DESCRIPTION
Firewall Rules
Storage Space in Use
This read-only bar shows how much of the ZyXEL Device's memory for
recording firewall rules it is currently using. When you are using 80% or less of
the storage space, the bar is green. When the amount of space used is over
80%, the bar is red.
Packet Direction Use the drop-down list box to select a direction of travel of packets for which
you want to configure firewall rules.
Create a new rule
after rule number
Select an index number and click Add to add a new firewall rule after the
selected index number. For example, if you select “6”, your new rule becomes
number 7 and the previous rule 7 (if there is one) becomes rule 8.
The following fields summarize the rules you have created that apply to traffic
traveling in the selected packet direction. The firewall rules that you configure
(summarized below) take priority over the general firewall action settings in the
General screen.
# This is your firewall rule number. The ordering of your rules is important as
rules are applied in turn.
Active This field displays whether a firewall is turned on or not. Select the check box
to enable the rule. Clear the check box to disable the rule.
Source IP This drop-down list box displays the source addresses or ranges of addresses
to which this firewall rule applies. Please note that a blank source or
destination address is equivalent to Any.
Destination IP This drop-down list box displays the destination addresses or ranges of
addresses to which this firewall rule applies. Please note that a blank source or
destination address is equivalent to Any.
Service This drop-down list box displays the services to which this firewall rule applies.
See Section 12.8 on page 187 for more information.