1 2 3 4 5
:INPUT,FORWARD,OUTPUT -m hbh;=;OK -m hbh --hbh-len 42;=;OK -m hbh ! --hbh-len 42;=;OK -m hbh --hbh-len 42 --hbh-opts 1:2,23:42,4:6,8:10,42,23,4:5;=;OK