A Basic Application for Validating IPv4 Header Checksum

Prerequisites

• nodejs:lasted
• yarn:lasted

Usage/Install

$ git clone https://github.com/RuiGuilherme/ipv4-header-checksum-validator.git
$ cd ipv4-header-checksum-validator
$ yarn
$ yarn start

The application will be available on 127.0.0.1:8000

Valid examples

4500 16D8 1250 4000 4006 0000 C881 B028 BFDF B771
21D5

4500 0514 42A2 2140 8001 0000 C0A8 0003 C0A8 0001
50B2

Not valid examples

4500 0034 2800 4000 7206 0000 C904 02B2 C881 B028
9C63

4500 0028 1544 4000 7206 0000 CB08 2382 C881 B028
9C57

Known issue

• Only in Brazilian Portuguese

Demo

checksumvalidator.herokuapp.com - Remember that this is the free version of Heroku and may be unavailable.

Author

Rui Guilherme

GitHub
Linkedin

Contributing

Contributions, issues and feature requests are welcome!