ZyXEL ADSL Prestige 660HW-61 91-004-361001 Manual Do Utilizador

Prestige 660H/HW Series User’s Guide

Chapter 13 Firewall Configuration

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The following table describes the labels in this screen.

Table 42   Rule Summary 

Firewall Rules 

Storage Space 

in Use

This read-only bar shows how much of the Prestige'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.

Default Policy

This field displays the default action and log policy you selected in the Default Rule 

screen for the packet direction shown in the field above.

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 above.

Rule

This is your firewall rule number. The ordering of your rules is important as rules are 

applied in turn. 
Click a rule’s number to go to the Firewall Edit Rule screen to configure or edit a 

firewall rule.

Active

This field displays whether a firewall is turned on (Y) or not (N). 

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. 

Please note that a blank service type is equivalent to Any. See 

 for more information.

Action

This is the specified action for that rule, either Block or Forward. Note that Block 

means the firewall silently discards the packet.

Schedule

This field tells you whether a schedule is specified (Yes) or not (No).

Log

This field shows you whether a log is created when packets match this rule 

(Enabled) or not (Disable).

Alert

This field tells you whether this rule generates an alert (Yes) or not (No) when the 

rule is matched.

Insert/Append

Type the index number for where you want to put a rule. For example, if you type “6”, 

your new rule becomes number 6 and the previous rule 6 (if there is one) becomes 

rule 7. 
Click Insert to add a new firewall rule before the specified index number. 
Click Append to add a new firewall rule after the specified index number. 

Move

Type a rule’s index number and the number for where you want to put that rule. Click 

Move to move the rule to the number that you typed. The ordering of your rules is 

important as they are applied in order of their numbering.

Back

Click Back to return to the previous screen. 

Apply

Click Apply to save your changes back to the Prestige.

Cancel

Click Cancel to begin configuring this screen afresh.