START=$1
STOP=$2
NUM=`expr $STOP - $START`
TEMP=${START}
if [ $1 -lt "1" ]; then
	exit
fi
echo "shut down ethernet interface, and remvoe config file from sysconfig dir..."

#dhclient -r
while [ $TEMP -le $STOP ]
do
	if [ -f /etc/sysconfig/network-scripts/ifcfg-eth${TEMP} ]; then
		dhclient -r eth${TEMP}
#		ifconfig eth${TEMP} down
		rm -f /etc/sysconfig/network-scripts/ifcfg-eth${TEMP}
	fi
	TEMP=`expr $TEMP + 1`
done
sleep 2
echo "remove module vmeth...."
rmmod vmeth
echo "remove interface eth promisc mode"
ifconfig eth0 -promisc