Trendnet BRF114 사용자 설명서

TW100-BRF114 User’s Guide 

This screen allows you to set Firewall and other security-related options. 

 

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. 

•  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. 

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. 

The ICMP protocol is used by the "ping" and "traceroute" programs, 
and by network monitoring and diagnostic programs. 
•  If checked, the Firewall Router will repond to ICMP packets 

received from the Internet. 

•  If not checked, ICMP packets from the Internet will be ignored. 

Disabling this option provides a slight increase in security. 

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