Siemens SS2604 manual Data Security Screen, Firewall

Advanced Configuration

Security

The security screen is accessed by the Security option on the Advanced menu.

Figure 45: Security Screen

Data - Security Screen

Firewall

Enable DoS	If enabled, DoS (Denial of Service) attacks will be detected and
Firewall	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 important
		factor is the available bandwidth of your Internet connection.
	•	Select the setting to match the bandwidth of your Internet connec-
		tion.

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