#!/bin/bash

wget -O /tmp/goog.txt https://www.gstatic.com/ipranges/goog.txt

grep -v "::" /tmp/goog.txt | sort -V > /tmp/goog-ipv4.txt

for i in `cat /tmp/goog-ipv4.txt `
    do echo "-A INPUT -p tcp -s $i -j DROP"
done > /tmp/goog-ipv4-DROP.txt

cat /tmp/goog-ipv4-DROP.txt