Security - Leviton 47611-GT4 User Manual

Security

This screen allows you to set Firewall and other security-related options.
Data - Security Screen
Firewall
If enabled, DoS (Denial of Service) attacks will be detected and
Enable DoS
blocked. The default is enabled. It is strongly recommended that this
Firewall
setting be left enabled.
Note:
•
•
This setting affects the number of "half-open" connections allowed.
Threshold
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•
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Figure 47: Security Screen
A DoS attack does not attempt to steal data or damage your PCs,
but overloads your Internet connection so you cannot use it, and-
the service is unavailable.
This device uses "Stateful Inspection" technology. This system can
detect situations where individual TCP/IP packets are valid, but
collectively they become a DoS attack.
A "half-open" connection arises when a remote client contacts the
Server with a connection request, but then does not reply to the
Server's response.
While the optimum number of "half-open" connections allowed
(the "Threshold") depends on many factors, the most important
factor is the available bandwidth of your Internet connection.
Select the setting to match the bandwidth of your Internet connec-
tion.
Advanced Administration
77