Details
Enforce strict TCP compliance with RFC 793 and RFC 1122 – Select to ensure strict compliance with several TCP timeout rules. This setting maximizes TCP security, but it may cause problems with the Window Scaling feature for Windows Vista users.
Solution
Navigate to Firewall Settings->Flood Protection->TCP Settings and check off ‘Enforce strict TCP compliance with RFC 793 and RFC 1122’.
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.