python_network_scanner.py

import scapy.all as scapy
import optparse

def get_arguments():
    parser = optparse.OptionParser()
    parser.add_option("-t","--target",dest="target",help="Target_IP/IP_range")
    (options,arguments) = parser.parse_args()
    return options
def scan(ip):
    arp_request = scapy.ARP(pdst=ip)
    broadcast = scapy.Ether(dst="ff:ff:ff:ff:ff:ff")
    arp_request_broadcast = broadcast/arp_request
    answered_list = scapy.srp(arp_request_broadcast,timeout=1,verbose=False)[0]
    client_list = []
    for element in answered_list:
        client_dict = {"ip": element[1].psrc, "mac": element[1].hwsrc}
        client_list.append(client_dict)
    return client_list
def print_result(result_list):
    print("IP\t\t\t MAC Address\n____________________________________________________")
    for client in result_list:
        print(client["ip"] + "\t\t" + client["mac"])
options = get_arguments()
scan_result = scan(options.target)
print_result(scan_result)