ZyXEL Communications 2 15.4 The Rules Screen

Chapter 15 Firewall

15.4 The Rules Screen

Click Security > Firewall > Rules to display the following screen. This screen displays a list of the configured firewall rules. Note the order in which the rules are listed.

Note: The firewall configuration screen shown in this section is specific to the following devices: P-The ordering of your rules is very important as rules are applied in turn.

Figure 87 Security > Firewall > Rules

The following table describes the labels in this screen.

Table 66 Security > Firewall > Rules

LABEL	DESCRIPTION
Firewall Rules Storage	This read-only bar shows how much of the AMG1312-T Series's memory for
Space in Use	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	Select an index number and click Add to add a new firewall rule after the selected
after rule number	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 read-only 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 Address	This column 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 Address	This column 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 column displays the services to which this firewall rule applies. See Appendix F
	on page 286 for more information.
Action	This field displays whether the firewall silently discards packets (Drop), discards
	packets and sends a TCP reset packet or an ICMP destination-unreachable message
	to the sender (Reject) or allows the passage of packets (Permit).
Source Interface	This column displays the source interface to which this firewall rule applies. This is
	the interface through which the traffic entered the AMG1312-T Series. Please note
	that a blank source interface is equivalent to Any.

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AMG1312-T Series User’s Guide