iptables -A FP-vnet0 -p icmp --icmp-type 0 -m state --state NEW,ESTABLISHED \
-j ACCEPT
iptables -A FJ-vnet0 -p icmp --icmp-type 8 -m state --state NEW,ESTABLISHED \
-j RETURN
iptables -A HJ-vnet0 -p icmp --icmp-type 8 -m state --state NEW,ESTABLISHED \
-j RETURN
iptables -A FJ-vnet0 -p icmp -j DROP
iptables -A FP-vnet0 -p icmp -j DROP
iptables -A HJ-vnet0 -p icmp -j DROP