about ipt_string

["CrackyBlue" <crackyblue@xxxxxxxxx>]

Hi,

I am just wondering why this script don't block 
 
iptables -A INPUT -p tcp -m string --string 'bittorent' --algo kmp -d 0/0
--dport 80 -j REJECT

I have iptables 1.3.8 and 2.6.17 kernel and ipt_string is already loaded


Thanks