Draytek Vigor2100V User Manual page 67

Enable SYN flood
defense
Enable UDP flood
defense
Protect Your Network
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.
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
respectively.
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
user-defined timeout period.
threshold and timeout are 300 packets per second and
10 seconds, respectively.
6-15
The main goal is to
per second and
The default setting for
10 seconds,