#!/bin/sh set -e if [ $1 = "BreakCommCmd" ] then iptables -A INPUT -s $2 -j DROP >/dev/null 2>&1 iptables -A OUTPUT -s $2 -j DROP >/dev/null 2>&1 iptables -A INPUT -m pkttype --pkt-type multicast -j DROP fi if [ $1 = "FixCommCmd" ] then iptables -F >/dev/null 2>&1 fi exit 0