Python Network Programming Cookbook - Second Edition

How to do it...

We can use Scapy, a mature network-analyzing, third-party library, to launch an ICMP scan. Since we would like to do it periodically, we need Python's sched module to schedule the scanning tasks.

Listing 3.7 shows us how to detect inactive machines, as follows:

 #!/usr/bin/env python # Python Network Programming Cookbook, Second Edition -- Chapter - 3 # This program is optimized for Python 2.7.12 and Python 3.5.2. # It may run on any other version with/without modifications. # Requires scapy-2.2.0 or higher for Python 2.7. # Visit: http://www.secdev.org/projects/scapy/files/scapy-latest.zip # As of now, requires a separate bundle for Python 3.x. # Download it from: https://pypi.python.org/pypi/scapy-python3/0.20 import argparse ...