iptables rules

[Peggy Kam <ppkam@xxxxxxxxx>]

Hi,

I have defined the following firewall rule in iptables:

iptables -I FORWARD -s 192.168.22.102 -d 192.168.1.112 -p tcp -m tcp -m
multiport --ports 22,23,24,25 -j ACCEPT

why were the packets able to get to 192.168.1.112 on port 22 when the
packets does not even come from ports 22,23,24 or 25?

Thanks in advance,
Peggy