Intermediate Networking
Intermediate Networking
Overview
The Intermediate Computer Networking course provides a strong foundation in networking concepts, technologies, and infrastructure used in modern IT environments.
This comprehensive training is designed for beginners and takes you step-by-step from the very basics of how networks work to intermediate-level topics including IPv6, subnetting, security fundamentals, remote access, and enterprise services.
Perfect for anyone who wants to understand, design, troubleshoot, and work with real-world networks in homes 🏠, small offices 🏢, enterprises 🌍, and cloud-connected environments.
✨ Key Features
- 🌐 Complete coverage from OSI/TCP-IP models to IPv6 & modern security
- 🔌 Deep understanding of all major protocols (TCP, UDP, ARP, ICMP, DHCP, DNS, NAT, HTTP, FTP, SSH, etc.)
- 🗺️ Practical subnetting, VLSM, supernetting + real-world IPv4 & IPv6 addressing
- ⚡ Hands-on focus: configuration examples (SSH, FileZilla, Windows IPv6, Router configs)
- 📡 Strong emphasis on wireless basics + enterprise services (NAT, DHCP, DNS, VPN)
- 🔒 Introduction to network security fundamentals (IPSec, 802.1X, VPN, encryption concepts)
- 😊 100% beginner-friendly – no prior experience needed
- 🚀 Excellent preparation for CCNA, Network+, and real-world IT/networking jobs
Course Content
Module 1: Networking Fundamentals & Reference Models
- Introduction to Computer Networking
- Protocol Data Unit (PDU)
- OSI Model – Seven Layers and Data Flow
- TCP/IP Models (Four-layered and Five-layered)
- Comparison of OSI and TCP/IP Models
- Encapsulation and Decapsulation
Module 2: Physical & Data Link Layer Concepts
- Physical Layer (Layer 1)
- Data Link Layer (Layer 2)
- Ethernet Frame Format
- Binary, Decimal, and Hexadecimal Number Systems
- MAC Addresses and Broadcast Addressing
- IPv4 Multicast MAC Addresses
Module 3: Network Layer – IPv4 & Subnetting
- Network Layer (Layer 3)
- IPv4 Protocol, Header, and Addressing
- Network Address, Broadcast Address, Default Gateway
- Private IP Addresses, APIPA, Loopback, and Localhost
- Classful Addressing (Class A, B, C, D)
- Multicast Concepts and Address Mapping
- Subnetting (Class A, B, C), VLSM, and Supernetting
Module 4: Network Layer Protocols & Troubleshooting Tools
- ARP and Gratuitous ARP
- ICMP and ICMP Message Types
- Ping, Traceroute, and Pathping Tools
- Comparison of Network Diagnostic Tools
- IGMP Versions and Multicast Group Management
Module 5: Transport Layer Protocols
- Transport Layer (Layer 4)
- TCP Concepts, Header, and Three-Way Handshake
- TCP Windowing, Connection Termination
- UDP Concepts and Pseudo Header
- Comparison of TCP and UD
Module 6: Application Layer Protocols – Remote Access
- TELNET Concepts, Commands, and Configuration
- TELNET Security Limitations
- SSH Concepts, Architecture, Encryption, and Configuration
- SSH Port Forwarding and Practical Implementations
Module 7: File Transfer Protocols
- TFTP Concepts, Packet Types, and Configuration
- FTP Concepts, Active vs Passive Modes
- FTPS vs SFTP
Module 8: Enterprise Network Services
- NAT (Static, Dynamic, PAT)
- HTTP Request and Response Model
- SMTP Communication and Status Codes
- DHCP Architecture, Messages, and Options
Module 9: Domain Name System (DNS)
- DNS Architecture and Namespace
- DNS Records, Zones, and Queries
- Recursive vs Iterative Queries
- Authoritative and Recursive DNS Servers
Module 10: VPN & Network Security Fundamentals
- VPN Concepts and Use Cases
- IPSec Architecture, Modes, and Components
- Encryption, Hashing, HMAC, and Diffie-Hellman
- IKEv1, IKEv2, PFS, and NAT Traversal
Module 11: Network Access Control
- IEEE 802.1X Port-Based Authentication
- Supplicant, Authenticator, and Authentication Server
- 802.1X Authentication Workflow
Module 12: Network Services & Name Resolution
- NAT (Static, Dynamic, PAT)
- HTTP Request and Response Model
- SMTP Communication and Status Codes
- DHCP Architecture, Messages, and Options
- DNS Architecture and Namespace
- DNS Records, Zones, and Queries
- Recursive vs Iterative Queries
Module 13: VPN & IP Security Fundamentals
- VPN Concepts and Use Cases
- IPSec Architecture, Modes, and Components
- Encryption, Hashing, HMAC, and Diffie-Hellman
- IKEv1, IKEv2, PFS, and NAT Traversal
Module 14: Network Access Control & Authentication
- IEEE 802.1X Port-Based Authentication
- Supplicant, Authenticator, and Authentication Server
- 802.1X Authentication Workflow
Module 15: IPv6 – Next Generation Internet Protocol
- Limitations of IPv4 and Need for IPv6
- IPv6 History and Related RFCs
- IPv6 Features and Benefits
- Differences Between IPv4 and IPv6
- IPv6 Communication Types: Unicast, Multicast, Anycast
- IPv6 Datagram Header Format
- IPv4 vs IPv6 Header Comparison
- IPv6 Addressing Fundamentals and Prefix Length
- IPv6 Address Formats and Compression Rules
- Types of IPv6 Addresses
- Global Unicast IPv6 Addresses and Assignment Methods
- IEEE EUI-64 Based IPv6 Addressing
- Static and EUI-64 IPv6 Configuration (Router & Windows Server)
- SLAAC – Stateless Address Auto-Configuration and Working
- Link-Local and Unique Local IPv6 Addresses
- Multicast, Anycast, Loopback, and Special IPv6 Addresses
- Solicited-Node Multicast Address
- ICMPv6: Functions, Header, and Message Types
- ICMPv6 Error and Informational Messages
- Neighbor Discovery Protocol (NDP)
- Router Solicitation and Router Advertisement Messages
Course Objectives
After completing this course, you will be able to:
- 🧠 Clearly understand networking models (OSI & TCP/IP), encapsulation, and data flow
- 🔍 Identify and explain every major layer of networking (Physical → Application)
- 📤 Master how data is transmitted, segmented, addressed, routed, and delivered
- ⚙️ Configure and troubleshoot using ping, traceroute, ARP, DHCP, DNS, NAT
- 🌿 Perform professional IPv4 subnetting, VLSM, and understand complete IPv6 addressing & configuration
- 🔐 Set up secure remote access (SSH), file transfer (SFTP/FTPS), and understand VPN basics
- 📈 Build strong foundational knowledge for CCNA, Network+, cybersecurity basics & real enterprise environments
Job Opportunities After Completing the course
This course prepares you very well for the following entry-level to junior-mid level roles:
- 🛡️ Network Support Engineer
- 🖥️ IT Support / Helpdesk Engineer (Networking)
- 🔧 Junior Network Administrator / Technician
- 💻 Desktop & Network Support Engineer
- 🌐 NOC Engineer (Entry Level)
- 🔒 Junior Network Security Analyst / SOC Support
- ☁️ Cloud Support Associate (Networking track)
- 📚 IT Trainee / Apprentice → Network Engineer pathway