Wildcard IP of reserved IPs

wildcard_ips.py

### CRAWLER wikipedia for reserved IPs
import cfscrape
from lxml import etree
import pandas as pd
url="https://en.wikipedia.org/wiki/Reserved_IP_addresses"
scraper = cfscrape.create_scraper()
scraped_html=scraper.get(url).content
tables = pd.read_html(scraped_html) # Returns list of all tables on page
reserved_ipv4=tables[0][0].drop(0)
reserved_ipv6=tables[1][0].drop(0)

########################
### WILDCARD IPS

import ipaddress

network = '192.168.0.0/16'

ips = ipaddress.IPv4Network(network)

first_ip = str(ips[0]).split('.')
last_ip = str(ips[-1]).split('.')

print('first ip: ',first_ip)
print('last ip: ',last_ip)

first_octet = list([first_ip[-4]])
second_octet = list([first_ip[-3]])
third_octet = list([first_ip[-2]])
fourth_octet = list([first_ip[-1]])

if first_ip[-1]=='0' and last_ip[-1] == '255':
    fourth_octet = ['*']
    if first_ip[-2]=='0' and last_ip[-2] == '255':
        third_octet = ['*']
        if first_ip[-3]=='0' and last_ip[-3] == '255':
            second_octet=['*']
            if first_ip[-4]=='0' and last_ip[-4] == '255':
                first_octet=['*']
            else:
                first_octet = list(range(int(first_ip[-4]), int(last_ip[-4])+1))
        else: 
            second_octet = list(range(int(first_ip[-3]), int(last_ip[-3])+1))
    else:
        third_octet = list(range(int(first_ip[-2]), int(last_ip[-2])+1))
else:
    fourth_octet = list(range(int(first_ip[-1]), int(last_ip[-1])+1))   

print('list of octets (4 combining): ',first_octet,second_octet,third_octet,fourth_octet)

for element1 in first_octet:
    if second_octet != ['*']:
        for element2 in second_octet:
            print (str(element1)+'.'+str(element2)+'.*')
        if third_octet != ['*']:
            for element3 in third_octet:
                print (str(element1)+'.'+str(element2)+'.'+str(element3)+'.*')
            if fourth_octet != ['*']:
                for element4 in fourth_octet:
                    print (str(element1)+'.'+str(element2)+'.'+str(element3)+'.'+str(element4))
    else:
        print (str(element1)+'.*')