IP Addressing and Subnetting
Private IPv4 ranges: 10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16.
This reference covers the foundation knowledge required to work confidently with IP addressing and subnetting: binary and hexadecimal numbering systems, IPv4 addressing and subnet masks, classless inter-domain routing (CIDR) and Variable Length Subnet Masking (VLSM), private versus public addressing, IPv6 addressing, and the fundamentals of routing and routing tables.
Binary is a base-2 numbering system that only uses the digits 0 and 1. These digits are called bits, and they correspond to the on/off states used in electronics (1 = on, 0 = off). Bits are the fundamental unit used to represent data and instructions in computing, and they determine how much data can be stored or how fast it can be transmitted over a network.
A critical fact to remember: eight binary 1s equal decimal 255. Also remember that counting starts at 0, so the range 0 to 255 actually represents 256 distinct values (0 is a number too).
Sign in to read this course
A free account unlocks all 514 courses. 20 are readable without one.
What's inside
6 sections- 1 Table of Contents
- 2 Module 1: Understanding IPv4
- 3 Module 2: Understanding IPv6
- 4 Module 3: Understanding Routing Tables
- 5 Summary
- 6 Quick-Reference Cheat Sheet
More Networking Fundamentals courses
View all 9Cisco Enterprise Networks - Design
Prerequisites: CCNA-level networking skills, including familiarity with routing protocols (OSPF, EIGRP, BGP basics), switching, VLANs, and subnetting.
Critical Network Services: DNS, DHCP and NAT
critical · network · services · dns · dhcp · nat · networking · fundamentals · systems · security · cisco · configuring · router · dora · global · hierarchy · hosts · managing · mapping ·...
Data Communications: The Big Picture
On one hand, the cloud behaves like an enterprise data center (offering compute, network, storage where a company centrally deploys applications). On the other hand, its business model re...
DNS, Network Protocols and Security
This course covered the DNS protocol from a security practitioner's perspective, progressing from fundamental query/response mechanics to traffic manipulation and, finally, to detecting s...
Network Concepts and Protocols 2
This course built a foundation for understanding how modern networks operate, moving from high-level models down to the physical wires and frames that carry every byte of traffic.
Resilient Infrastructure: Security and Troubleshooting
resilient · infrastructure · security · troubleshooting · networking · fundamentals · systems · attacks · control · access · availability · failure · network · recovery · resilience · rou...
Interested in this course?
Contact us to book it or get a custom training plan for your team.