ZyXEL Communications P-661HW Manuale Utente

P-661H/HW Series User’s Guide

Chapter 9 Firewall Configuration

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Note: The ordering of your rules is very important as rules are applied in turn.

 for more information. 

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

Figure 87   Firewall Rules 

Default Action

Use the drop-down list boxes to select the default action that the firewall is take on 

packets that are traveling in the selected direction and do not match any of the 

firewall rules. 
Select Drop to silently discard the packets without sending a TCP reset packet or 

an ICMP destination-unreachable message to the sender.
Select Reject to deny the packets and send a TCP reset packet (for a TCP packet) 

or an ICMP destination-unreachable message (for a UDP packet) to the sender.
Select Permit to allow the passage of the packets. 

Log

Select the check box to create a log (when the above action is taken) for packets 

that are traveling in the selected direction and do not match any of your customized 

rules.

Expand...

Click this button to display more information.

Basic...

Click this button to display less information.

Apply

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

Cancel

Click Cancel to begin configuring this screen afresh.

Table 60   Firewall: General (continued)