Python uses scapy for ARP scanning

A. Description

Using the scapy third-party library, write an ARP scan of a network segment to obtain the IP address and MAC address of the active host within that segment.

Two. Analysis and Solutions

1. First, import the relevant modules from Scapy.
2. Ether ()/arp () constructs the ARP packet.
3. SRP1 () sends and receives ARP packets.

The code examples are as follows:

#!/usr/bin/env python# _*_ Coding=utf-8 _*_ fromScapy.allImport*ImportSys,getopt def usage():        Print "Usage:sudo./arpscanner.py" def main(argv):        Try: opts, args = Getopt.getopt (argv,"")exceptGetopt. Getopterror:usage () Sys.exit (2) forIpFixinchRange1,254): IP ="192.168.1."+str (ipFix) arppkt = ether (dst="Ff:ff:ff:ff:ff:ff")/arp (Pdst=ip, hwdst="Ff:ff:ff:ff:ff:ff") res = SRP1 (ARPPKT, timeout=1, verbose=0)ifRes:Print "IP:"+ RES.PSRC +"MAC:"+ RES.HWSRCif__name__ = ="__main__": Main (sys.argv[1:])

Three. Running results

Python uses scapy for ARP scanning