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D3G0804W User Manual
Table 10. Firewall Settings Page Options
Option
Description
Maximum Security (High)
Maximum security is the highest level of firewall security. This level blocks all applications including voice applications (such
as Gtalk and Skype) and P2P applications, but permits Internet browsing, email, VPN, DNS, and iTunes services.
Typical Security (Medium)
Typical security is the medium level of firewall security. This level blocks P2P applications and pings to the Gateway, while
permitting all other traffic.
Minimum Security (Low)
Minimum security is the lowest level of firewall security. It does not block applications and traffic. Select this level if you are
not familiar with firewall settings.
Custom Security
This security level is pre-configured to block all local network access from the Internet, except “trusted computers" defined
on the Managed Sites page (see page 57) and Managed Services page (see page 64). Only commonly used services, such
as Web browsing and E-mail, are permitted. If you select this option, a list of check boxes let you disable the entire firewall
or block certain traffic (see Figure 25).
SAVE SETTINGS Button
After configuring the settings on this page, click this button to save your settings.
RESTORE DEFAULT
SETTINGS Button
Click this button to return the Gateway to its default settings. A precautionary message does not appear before the Gateway
reverts to its default settings. If you click this button, the Gateway logs you out of the Web management interface and you
must log in to the interface again.