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vik-y/get_ips.py

Last active January 17, 2019 15:52
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Script to get all unused ips in a subnet
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get_ips.py
import os, sys
# Fping must be installed in the system
os.system('fping -a -g %s/24 > alive.txt' % (sys.argv[1]))
f = open('alive.txt', 'r')
raw = f.readlines()
ips = [int(x.split('.')[-1].strip()) for x in raw]
ips.sort()
# From the sorted list figure out the unused ips.
print ips
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vik-y commented Aug 28, 2016

A subnet ip must be provided as command line argument.

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vik-y commented Sep 1, 2016

Instructions to run :
sudo apt-get install fping

NOTE: Final list printed gives the list of used IPs. So pick an IP which is not in the list.

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