1. Master Subnetting – Section 1

2. IPv4 Addressing Types
We use 3 different type of addresses to communicate in an IPv4 network:
Unicast:
Broadcast:
Multicast:
Communication to a single device
Communication to ALL devices
Communication to multiple device, but not all devices.

3. IPv4 Addressing Types
We use 3 different type of addresses to communicate in an IPv4 network:
Unicast:
Broadcast:
Multicast:
Communication to a single device
Communication to ALL devices
Communication to multiple device, but not all devices.

4. IPv4 Classes

5. IPv4 Classes Class A: 2^24 = 16,777,214 Class B: 2^16 = 65,536
Class C: 2^16 = 254

6. IPv4 Classes Class A N.H.H.H Class B N.N.H.H Class C N.N.N.H
A – N.H.H.H B – N.N.H.H
C N.N.N.H
Class C N.N.N.H

7. IPv4 Usable Addresses

8. IPv4 Usable Addresses

9. IPv4 Usable Addresses

10. IPv4 Usable Addresses 32bits | 4octets | 8 bits each
Network Value defines the neighborhood you live in. Can not change.
Host Value defines your specific location in the neighbor. This value can change.
N . H . H . H
Default Prefix = /8
Example: /8
N . N . H . H
Default Prefix = /16
Example: /16
N . N . N . H
Default Prefix = /24
Example: /24
128 | 64 | 32 | 16 | 8 | 4 | 2 | 1