which way correct ? for disable syncookie protection

which way correct for disable syncookie protection ?

Hi guys

I met some problem. some traffic as a DSR. so we need disable syncookie protection.

I chage value global option like Default Per Virtual Server SYN Check™ Threshold, Global SYN Check™ Threshold is 0

and I configured disable Hardware VLAN SYN Cookie Protection

but I have some question. 

Does not work these three option (software-syn-cookie, syn-cookie-enable, hardware-syn-cookie) If I turn off the global option?

ps. software-syn-cookie, syn-cookie-enable, hardware-syn-cookie options in fastl4 profile

thank you