Advanced Configuration
81
Security
The security screen is accessed by the Security option on the Advanced menu.
Figure 47: Security Screen

Data - Security Screen

Firewall
Enable DoS
Firewall
If enabled, DoS (Denial of Service) attacks will be detected and
blocked. The default is enabled. It is strongly recommended that this
setting be left enabled.
Note:
• A DoS attack does not attempt to steal data or damage your PCs,
but overloads your Internet connection so you can not use it - the
service is unavailable.
• The DSL/Cable Router uses "Stateful Inspection" technology. This
system can detect situations where individual TCP/IP packets are
valid, but collectively they become a DoS attack.
Threshold This setting affects the number of "half-open" connections allowed.
• 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 impor tant
factor is the available bandwidth of your Internet connection.
• Select the setting to match the bandwidth of your Internet connec-
tion.