iptables -A INPUT -s 169.253.4.0/24 -j DROP
iptables -A INPUT -s 169.253.160.0/19 -j DROP
iptables -A INPUT -s 169.253.0.0/16 -j DROP
iptables -A INPUT -s 169.252.128.0/17 -j DROP
iptables -A INPUT -s 169.252.0.0/16 -j DROP
iptables -A INPUT -s 169.253.162.0/24 -j DROP
iptables -A INPUT -s 169.252.0.0/17 -j DROP
iptables -A INPUT -s 169.253.172.0/22 -j DROP