Astak R4020A - User Manual - Manual (Page 71)

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Denial-of-Service
This function is used to prevent the Denial of Service (DoS) attacks.
Note: DoS is only supported in Gateway mode. It’s disabled and hidden in Bridge
mode.
Check the “Enable DoS Prevention” box, and then the attack types in the page can be
selected according to demand.
You can click the
button to check all the boxes, or click the
button to uncheck all the boxes.
After setting the parameters, please click the
button to save the
configurations.