CIDR Prefix → Subnet Mask & Wildcard Mask
This lesson is part of the course
In this lesson
You turn seven prefixes into subnet masks octet by octet, write the mask and wildcard as dotted text and count the 1-bits to get a prefix back from a mask.
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Lessons in this course
- Binary ↔ Decimal: Reading an Octet Locked
- IPv4 Address ↔ 32-bit Integer Locked
- CIDR Prefix → Subnet Mask & Wildcard Mask Locked
- Network & Broadcast Address from Any Host Locked
- Usable Hosts per Prefix: 2^(32−n) − 2 Locked
- Subnetting a /24 into Equal Subnets Locked
- VLSM: Right-Sizing Subnets for Departments Locked
- IPv6 Basics & the Hosts-per-Prefix Chart Locked