📡 IP ADDRESSING & SUBNETTING
1. IPv4 Structure
2. Subnet Mask & Binary
3. Address Classes
4. CIDR Notation
5. Subnetting Basics
6. Subnetting Examples
7. VLSM
8. Special Addresses & Gateway
9. Quick Reference
📐 Subnet Calculator
Network:
CIDR:
/24
Network:
192.168.1.0
Broadcast:
192.168.1.255
First host:
192.168.1.1
Last host:
192.168.1.254
Hosts:
254
Speed:
1.0
🔍 DETAILS
IPv4 Address Structure
An IPv4 address is a 32-bit binary number, usually written in dotted decimal (e.g., 192.168.1.10).
Bits
8 bits per octet
Format
NNNNNNNN.NNNNNNNN.NNNNNNNN.NNNNNNNN
Example
11000000.10101000.00000001.00001010 = 192.168.1.10
Info