Skip to content

Latest commit

 

History

History

subnet_helper

Folders and files

NameName
Last commit message
Last commit date

parent directory

..
images
images
 
 
README.md
README.md
 
 
README_CN.md
README_CN.md
 
 
subnet_helper.py
subnet_helper.py
 
 

README.md

subnet_helper

🪄 Function

Converts binary subnet mask to human-friendly notation (dot-decimal with length) and vice versa. In addition, it can provide available IP range and count in the given subnet.

Online version (Chinese)

📖 Usage

  • python3 ./subnet_helper.py
  • Input a subnet mask in binary or a human-friendly notation
  • Press Enter to get the result
  • Press Ctrl+C to exit

🍻 Example

$ python3 ./subnet_helper.py
> 225.128.0/9
Prefix: 11100001 1
  Available IP count: 2^23 = 8388608
  Available IP range: 225.128.0.0 - 225.255.255.255
  Available IP range (bin): 11100001 10000000 00000000 00000000 - 11100001 11111111 11111111 11111111
> 11100000 00
Human-friendly: 224.0.0.0/10
  Available IP count: 2^22 = 4194304
  Available IP range: 224.0.0.0 - 224.63.255.255
  Available IP range (bin): 11100000 00000000 00000000 00000000 - 11100000 00111111 11111111 11111111
>

Screenshot:

normal

If you have rich module installed, you can get a colored output:

rich