Details
The SYN Attack Threshold configuration options provide limits for SYN Flood activity before the device drops packets. The device gathers statistics on WAN TCP connections, keeping track of the maximum and average maximum and incomplete WAN connections per second. Out of these statistics, the device suggests a value for the SYN flood threshold.
Solution
Navigate to Firewall Settings->Flood Protection->Layer 3 SYN Flood Protection – SYN Proxy and set ‘SYN Attack Threshold’ to a value that aligns with the statistics of your device ‘Suggested value calculated from gathered statistics’.
This security hardening control applies to the following category of controls within NIST 800-53: System and Communications Protection.This control applies to the following type of system SonicWALL.