Limit TCP packets for 1 connection

Hy,

I would like to limit TCP packets per connection (Block LOIC etc).

I think I need something like this but transcribed in MKT language:

iptables -A INPUT -p tcp --dport 80 -m hashlimit --hashlimit-upto 50/min
–hashlimit-burst 500 --hashlimit-mode srcip --hashlimit-name http -j ACCEPT
iptables -A INPUT -p tcp --dport 80 -j DROP

Am I on the right track?

Tnx in Advance.

Ed.