Hi, "packets those are forwarded traverse thru "NAT prerouting -> Filter Forward -> NAT post Routing chains ." But in case of multicast packets , i can see packets flowing thru "NAT prerouting -> Filter INPUT -> Filtert Forward -> NAT post routing chains . why it is so ? . Note - > I am running igmpproxy for for multicast proxy . Thanks, Ratheesh. -- To unsubscribe from this list: send the line "unsubscribe netfilter" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html