If you encounter the issue of detecting a network broadcast, this recipe is for you. We can learn how to find the information from the broadcast packets.
We can use Scapy to sniff the packets arriving to a network interface. After each packet is captured, they can be processed by a callback function to get the useful information from it.
Listing 8.7 gives the code for scanning the broadcast of packets, as follows:
#!/usr/bin/env python
# Python Network Programming Cookbook, Second Edition -- Chapter - 8
# This program is optimized for Python 2.7.12 and Python 3.5.2.
# It may run on any other version with/without modifications.
from scapy.all import *
import os
captured_data = dict()
END_PORT = 1000
def monitor_packet(pkt):
if IP in pkt:
if pkt[IP].src not in captured_data:
captured_data[pkt[IP].src] = []
if TCP in pkt:
if pkt[TCP].sport <= END_PORT:
if not str(pkt[TCP...