Security :: Drop Inbound Traffic To Port 80 (http) From Source Ports Less Than 1024?

I'm simply trying to make a little restriction on www packets under two rules:

1. Allow inbound/outbound www packets (works!)

2. DROP inbound traffic to port 80 from source ports less than 1024. (DOES NOT WORK!)

Now, technically, when i use hping to test my rules, hping3 192.168.100.100 -S -p80 -s 1023 I should NOT receive any packets. However, i still receive packets, which means my rule that says less than 1024 does not work. (see below)

And this is my iptables rules in shell-script so far:

#!/bin/sh
DEFAULT_NIC=eth0
SERVER_IP="192.168.100.100"
ALLOWED_WWW_PORT=80
IPT="/sbin/iptables"

[Code].....