030-300629 Rev. A
93
February 2011
User Guide
VersaLink Wireless Gateway (Model 7550)
15.
FIREWALL SETTINGS
15.1
General Firewall Security Settings
This section explains how to configure your Router’s firewall security features. The Router’s firewall security
settings allow you reduce the risk of unauthorized access to your network by prohibiting certain types of inbound
and outbound network traffic and by allowing you to configure specific firewall rules.
To change your firewall security level, click the option next to the desired security setting. Next, click
Apply
to
allow the changes to take effect.
IMPORTANT
: It is recommended that you do not change the settings in this
User Defined Firewall Rules
screen.
If you need to reset your Router to factory default settings, push the reset button on the rear of the Router. Or follow
the instructions in section 16.2, “Restore Defaults,” to restore the Router to factory default settings.
The factory default security level for your Router is
No Security (None).
General Firewall Settings
Maximum Security
(High)
High security level only allows basic Internet functionality. Only Mail, News, Web,
FTP, and IPSEC are allowed. All other traffic is prohibited.
Typical Security
(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.
Minimum Security
(Low)
Low security setting will allow all traffic except for known attacks. With Low
security, your Router is visible to other computers on the Internet.
No Security
(None)
Factory Default = No Security (None)
The Firewall is disabled. (All traffic is passed)
Custom Security
(Custom)
Custom is a security option that allows you to edit the firewall configuration directly.
Note: Only the most advanced users should try this.
