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Enable Dos Defense
Click the checkbox to activate the DoS Defense Functionality.
Enable SYN flood defense
Click the checkbox to activate the SYN flood defense function. If the
amount of the TCP SYN packets from the Internet exceeds the
user-defined threshold value, the Vigor router will be forced to discard
randomly the sequent TCP SYN packets in the user-defined timeout
period. The main goal is to protect the Vigor router against the TCP
SYN packets that intend to use up the router's limited-resource. By
default, the threshold and timeout values are set to 300 packets per
second and 10 seconds, respectively.
Enable UDP defense
Click the checkbox to activate the UDP flood defense function. Once the
UDP packets from the Internet exceed the user-defined threshold value,
the router will be forced to discard all sequent UDP packets in the
Firewall Setup
6-14
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