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SubnetCalculator is a python script which allows you to divide a network into subnetworks.

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0liverFlow/SubnetCalculator

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SubnetCalculator

Python Version 1.0 License

Purpose

SubnetCalculator is a python script which allows you to divide a network into subnetworks.
It performs three main tasks:

  • Determining the network address, the broadcast address and the host id range from a given IP address in CIDR notation.
  • Dividing a given network into a specific number of sub-networks(FLSM).
  • Dividing a given network into sub-networks using a number of hosts for each subnet(VLSM).

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Important Notes

Before using this script, thanks in advance to respect the following rules:

  • This program works only for IPv4 addresses.
  • The format of an IP address must be as follows : x.x.x.x or x-x-x-x (with x between 0 and 255).
  • The ip address's separator must be a dot(.) or a dash(-)
  • The subnet mask must be given in CIDR notation /x with x between 1 and 31
  • Thank you very much for taking the information above into consideration. Hope you're gonna like subnet/calculator :)

Installation & Usage

SubnetCalculator is a cross platform script that works with python 3.10 and above.

git clone https://github.com/0liverFlow/SubnetCalculator
cd ./SubnetCalculator
pip3 install -r requirements.txt

Then you can run it

SubnetCalculator.py [-h] --network network/subnet [--flsm N] [--vlsm N[,N]]

Docker

You can also execute the program using the Dockerfile. This can be simply done using the instructions below:

git clone https://github.com/0liverFlow/SubnetCalculator
cd ./SubnetCalculator
docker build -t subnet-calculator

Once the image is built, you can run it

docker run -it subnet-calculator --network 192.168.1.0/24 --flsm 2
docker run -it subnet-calculator --network 192.168.1.0/24 --vlsm 20 40 80
docker run -it subnet-calculator --network 192.168.1.0/24
docker run -it subnet-calculator --help

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SubnetCalculator is a python script which allows you to divide a network into subnetworks.

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