Westell Technologies 7401 Benutzerhandbuch

Seite von 153
 
 
 
 
 
 
030-300381 Rev. A 
63 
January 2004 
 UltraLine Home DSL Router (Models 7400, 7401) 
 User Guide 
12.3  Firewall Configuration 
 
The following settings will be displayed if you select Firewall from the Configuration menu.  
 
 
 
 
 
High 
High security level only allows basic Internet functionality. Only Mail, News, Web, FTP, and 
IPSEC are allowed. All other traffic is prohibited. 
Medium 
Factory Default = MEDIUM 
Like High security, Medium security only allows basic Internet functionality by default. However, 
Medium security allows customization through NAT configuration so that you can enable the traffic 
that you want to pass. 
Low 
The Low security setting will allow all traffic except for known attacks. With Low security, your 
Router is visible to other computers on the Internet. 
None 
Firewall is disabled. (All traffic is passed)  
Custom 
Custom is an advanced configuration option that allows you to edit the firewall configuration 
directly. NOTE: only the most advanced users should try this. 
 
 
If you select Edit from the Security Level screen, the User Defined Firewall Rules screen will be displayed. This 
screen allows you to change the security parameters on your Inbound and Outbound Firewall rules via the User 
Defined Firewall Rules
 drop-down arrow. If you select Inbound, this will restrict inbound traffic from the WAN to 
the LAN. Outbound restricts outbound traffic to the WAN from the LAN. To apply the new settings, click Apply in 
the screen labeled User Defined Firewall Rules
 
NOTE: Westell recommends that you do not change the settings in the User Defined Firewall Rules screen. If you 
need to reset the Router to factory default settings, push the reset button on the rear of the Router.