ZyXEL 793H Guía Del Usuario

Chapter 9 Firewall Configuration

P-793H User’s Guide

 for more information. 

Use this screen to create or edit a firewall rule. In the Rules screen, select an index number and 
click Add or click a rule’s Edit icon to display this screen and refer to the following table for 
information on the labels.

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 

 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).

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 (Yes) or 

not (No).

Modify

Click the Edit icon to go to the screen where you can edit the rule.
Click the Remove icon to delete an existing firewall rule. A window displays asking 

you to confirm that you want to delete the firewall rule. Note that subsequent firewall 

rules move up by one when you take this action.

Order

Click the Move icon to display the Move the rule to field. Type a number in the 

Move the rule to field and click the Move button 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.

Apply

Click Apply to save your changes back to the ZyXEL Device.

Cancel

Click Cancel to begin configuring this screen afresh.

Table 40   Firewall > Rules (continued)