ZyXEL p-660h-61 Guida Utente

Pagina di 354
Prestige 660H Series User’s Guide 
Firewall Configuration 
        11-1 
Chapter 11 
Firewall Configuration 
This chapter shows you how to enable and configure the Prestige firewall. 
11.1 Remote Management and the Firewall 
When remote management is configured to allow management (see the Remote Management chapter) 
and the firewall is enabled: 
♦ 
The firewall blocks remote management from the WAN unless you configure a firewall rule to 
allow it. 
♦ 
The firewall allows remote management from the LAN.  
11.2  Enabling the Firewall 
Click Firewall and then Config to display the following screen. Select the Firewall Enabled check 
box and click Apply to enable (or activate) the firewall. 
 
Figure 11-1 Enabling the Firewall 
11.3 Attack Alert 
Attack alerts are real-time reports of DoS attacks. In the Alert screen, shown later, you may choose to 
generate an alert whenever an attack is detected. For DoS attacks, the Prestige uses thresholds to 
determine when to drop sessions that do not become fully established. These thresholds apply globally 
to all sessions. 
You can use the default threshold values, or you can change them to values more suitable to your 
security requirements.