Master IPv4 subnetting: explore any network on the interactive bit-strip, carve VLSM subnets like you will on the exam, then prove it in timed drill mode. Everything runs in your browser.
Input
The 32 bits — network | host boundary
■ network bits
■ host bits
· host bit = 0
Results
Base network & host needs
Address space map — each row is one subnet's slice of the base block