iptables related

[Jeffrin <jeffrin@xxxxxxxxxxx>]

hello all,

iptables -A INPUT -sport 80 -j ACCEPT

shows error ...

 msservices:~# iptables -A INPUT --sport 80 -j ACCEPT
iptables v1.2.9: Unknown arg `--sport'
Try `iptables -h' or 'iptables --help' for more information.

please help me ...