Siemens SS2524 User Manual

Page of 90
SpeedStream Powerline Wireless Router User Guide 
  80 
Security 
The security screen is accessed by the Security option on the Advanced menu. 
 
 
Figure 44: 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 cannot use it - the 
service is unavailable. 
 
The SpeedStream Powerline Wireless 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 important 
factor is the available bandwidth of your Internet connection. 
 
Select the setting to match the bandwidth of your Internet connec-
tion.