Gets Amazon & Netflix IP's to route traffic through a specific gateway to bypass VPN (Creates windows route add statement by default)

getIPRouteAdd.sh

gatewayip=192.168.2.1
rm routeListtemp > /dev/null 2>&1
rm amazonCIDR > /dev/null 2>&1
rm routeList > /dev/null 2>&1
rm netflixip > /dev/null 2>&1
rm netflixCIDR > /dev/null 2>&1
rm arinunclean > /dev/null 2>&1
rm arinCIDR > /dev/null 2>&1
#cycle 3 times to make sure we get a good set of A records, Amazon ELB (Netflix host) only gives 8 a records per lookup
echo -en "Getting Netflix IP's from DNS Lookups...\t\t\t\t\t"
dig +short nflximg.net > netflixip
dig +short netflix.com >> netflixip
dig +short nflxext.com >> netflixip
dig +short nflxvideo.net >> netflixip
dig +short nflximg.net >> netflixip
dig +short netflix.com >> netflixip
dig +short nflxext.com >> netflixip
dig +short nflxvideo.net >> netflixip
dig +short nflximg.net >> netflixip
dig +short netflix.com >> netflixip
dig +short nflxext.com >> netflixip
dig +short nflxvideo.net >> netflixip
tput hpa 80; echo "DONE!"
echo -en "Done getting Netflix IP's from DNS. Starting whois for IP range information..."
#remove duplicates
sort -u netflixip -o netflixCIDR
#As these are random IP's we need to acquire the blocks. utilize WHOIS to get CIDR information
while read filename; do whois "$filename" | grep CIDR | cut -c 17- >> netflixCIDR; done < netflixip
tput hpa 80; echo "DONE!"
echo -en "Breaking multilines and sorting..."
#remove non CIDR results
sed -i '/\//!d' netflixCIDR
#break multiple CIDRs on one line into multiple lines
sed -i 's/, /\n/g' netflixCIDR
sort -u netflixCIDR -o netflixCIDR
rm netflixip
tput hpa 80; echo "DONE!"
echo -en "Getting Netflix ARIN Ranges..."
#DNS found IPs arent enough, but the streaming servers are not found under specific dns names, they are geographic and dynamic, so utilize ARIN get list a list of IPs assigned to Netflix Streaming Services
curl -O -H "Accept: application/json" http://whois.arin.net/rest/org/SS-144/nets > /dev/null 2>&1
#parse json
jq -r '.nets.netRef | map([."@startAddress", ."@endAddress"] | join("-")) | join ("\n")' nets > arinunclean
tput hpa 80; echo "DONE!"
echo -en "Cleaning list and getting CIDR..."
rm nets
#Remove IPV6 addresses
sed -i '/::/d' ./arinunclean
cat arinunclean | xargs -L1 ipcalc > arinCIDR
rm arinunclean
sed -i '/deagg/d' ./arinCIDR
tput hpa 80; echo "DONE!"
echo -en "Starting Amazon AWS IP range download..."
curl -O https://ip-ranges.amazonaws.com/ip-ranges.json -s
jq -r '.prefixes | .[].ip_prefix' < ip-ranges.json > amazonCIDR
tput hpa 80; echo "DONE!"
echo -en "Converting each list to netmask format..."
rm ip-ranges.json
 echo "::NetflixDNS" > routeListtemp; while IFS="/" read IP S; do
        M=$(( 0xffffffff ^ ((1 << (32-S)) -1) ));         echo "route ADD $IP MASK $(( (M>>24) & 0xff )).$(( (M>>16) & 0xff )).$(( (M>>8) & 0xff )).$(( M & 0xff )) $gatewayip METRIC 1"; done < netflixCIDR >> routeListtemp

 echo "::Amazon" >> routeListtemp; while IFS="/" read IP S; do
        M=$(( 0xffffffff ^ ((1 << (32-S)) -1) ));         echo "route ADD $IP MASK $(( (M>>24) & 0xff )).$(( (M>>16) & 0xff )).$(( (M>>8) & 0xff )).$(( M & 0xff )) $gatewayip METRIC 1"; done < amazonCIDR >> routeListtemp

 echo "::NetflixStreamingARIN" >> routeListtemp; while IFS="/" read IP S; do
        M=$(( 0xffffffff ^ ((1 << (32-S)) -1) ));         echo "route ADD $IP MASK $(( (M>>24) & 0xff )).$(( (M>>16) & 0xff )).$(( (M>>8) & 0xff )).$(( M & 0xff )) $gatewayip METRIC 1"; done < arinCIDR >> routeListtemp

rm netflixCIDR
rm amazonCIDR
rm arinCIDR
tput hpa 80; echo "DONE!"
echo -en "Removing duplicates..."
awk '!x[$0]++' routeListtemp > routelist
tput hpa 80; echo "DONE!"
echo -en "Script Complete. Counting files in routelist."
tput hpa 80; echo "$(wc -l routelist | cut -d ' '  -f 1)"
rm routeListtemp
while true; do
    echo -en "\n\nEnter D to display list, or anything else to exit: \t\t\t\t"
    read input
    if [[ $input = 'd' ]] || [[ $input = 'D' ]]
        then
            cat routelist
            break
    else
         break
    fi
done