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Free TCP/IP online course, Tutorials, Study materials, Guides, documentation

Part 01 - IPv4

Lesson 1 - Introduction

Lesson 2 - What is PDU (Protocol Data Unit)

Lesson 3 - Seven Layers of OSI Model.

Lesson 4 - How data is moved through different layers of OSI model at sending and receiving computers

Lesson 5 - Name of data packets at different layers of OSI model

Lesson 6 - Why OSI model failed

Lesson 7 - Four layered TCP/IP model

Lesson 8 - Five layered TCP/IP model

Lesson 9 - Comparison between four layered TCP/IP model and five layered TCP/IP model

Lesson 10 - Protocols/Standards at various layers of TCP/IP model

Lesson 11 - Comparison between TCP/IP and OSI models

Lesson 12 - How data is moved through different layers of TCP/IP model at sending and receiving computers

Lesson 13 - Name of data packets at different layers of TCP/IP model

Lesson 14 - TCP/IP Encapsulation and Decapsulation

Lesson 15 - Physical Layer (Layer 1)

Lesson 16 - Datalink Layer (Layer 2)

Lesson 17 - Ethernet Frame Format

Lesson 18 - Binary Decimal and Hexadecimal numbers and conversions

Lesson 19 - How to use calculator for binary, decimal and hexadecimal number conversions

Lesson 20 - Media Access Control (MAC) addresses

Lesson 21 - Broadcast MAC Address - ff:ff:ff:ff:ff:ff

Lesson 22 - IPv4 Multicast MAC addresses

Lesson 23 - Network Layer (Layer 3)

Lesson 24 - IPv4 Protocol, IPv4 header and fields of IPv4 header

Lesson 25 - IPv4 Addresses

Lesson 26 - What is subnet mask

Lesson 27 - What is network address

Lesson 28 - IPv4 Limited broadcast address

Lesson 29 - IPv4 Directed broadcast address

Lesson 30 - What is limited broadcast in IPv4 and how limited broadcast works

Lesson 31 - What is directed broadcast in IPv4 and how directed broadcast works

Lesson 32 - What is default gateway

Lesson 33 - What are Private IPv4 Addresses (RFC 1918 addresses)

Lesson 34 - Automatic Private IPv4 addresses (APIPA)

Lesson 35 - What is loopback address

Lesson 36 - What is localhost

Lesson 37 - Class A networks and Class A IP addresses

Lesson 38 - Class B networks and Class B IP addresses

Lesson 39 - Class C networks and Class C IP addresses

Lesson 40 - Class D multicast addresses

Lesson 41 - Link-local multicast addresses

Lesson 42 - Internetwork control block multicast addresses

Lesson 43 - Source-Specific Multicast addresses

Lesson 44 - GLOP Multicast addresses

Lesson 45 -Administratively scoped multicast address block

Lesson 46 - What is multicast

Lesson 47 - What is multicast group

Lesson 48 - Multicast IPv4 address to MAC address mapping

Lesson 49 - Comparison of multicast with unicast and broadcast

Lesson 50 - Advantages and disadvantages of multicast

Lesson 51 - How IPv4 multicast works

Lesson 52 - IPv4 address reservations

Lesson 53 - Class C Subnetting Tutorial - Part 1

Lesson 54 - Class C Subnetting Tutorial - Part 2

Lesson 55 - Class B Subnetting Tutorial - Part 1

Lesson 56 - Class B Subnetting Tutorial - Part 2

Lesson 57 - Class A Subnetting Tutorial - Part 1

Lesson 58 - Class A Subnetting Tutorial - Part 2

Lesson 59 - Variable Length Subnet Masking (VLSM)

Lesson 60 - Supernetting

Lesson 61 - How to find out the Network Address and Broadcast Address of a subnetted IPv4 address

Lesson 62 - Address Resolution Protocol (ARP)

Lesson 63 - What is Gratuitous ARP

Lesson 64 - Internet Control Message Protocol (ICMP)

Lesson 65 - Transport Layer (Layer 4)

Lesson 66 - Transmission Control Protocol (TCP)

Lesson 67 - Transmission Control Protocol (TCP) Segment Header

Lesson 68 - TCP Three-way Handshake

Lesson 69 - Multiplexing and Demultiplexing using port numbers

Lesson 70 - Transmission Control Block (TCB)

Lesson 71 - TCP Sliding Window

Lesson 72 - TCP Connection Termination

Lesson 73 - User Datagram Protocol (UDP)

Lesson 74 - Differences between TCP and UDP

Lesson 75 - Application Layer (Layer 5)

Lesson 76 - What is NAT (Network Address Translation)

Lesson 77 - What is Static NAT

Lesson 78 - What is Dynamic NAT

Lesson 79 - What is PAT - Port Address Translation (NAT Overload)

Lesson 80 - Hypertext Transfer Protocol (HTTP) - What is HTTP?

Lesson 81 - Hypertext Transfer Protocol (HTTP) - Request and Response

Lesson 82 - Simple Mail Transport Protocol (SMTP) - How SMTP Works?

Lesson 83 - Simple Mail Transport Protocol (SMTP) Client - Server Communication

Lesson 84 - SMTP Status Codes and Extended Simple Mail Transfer Protocol (ESMTP)

Lesson 85 - Dynamic Host Configuration Protocol (DHCP) - How DHCP Works?

Lesson 86 - Dynamic Host Configuration Protocol (DHCP) - Message Format

Lesson 87 - Dynamic Host Configuration Protocol (DHCP) Messages

Lesson 88 - Dynamic Host Configuration Protocol (DHCP) Message Options

Lesson 89 - What is DNS - Why we need DNS (Domain Name System)

Lesson 90 - Advantages of Distributed DNS Infrastructure Architecture

Lesson 91 - Important RFCs Related with DNS (Domain Name System)

Lesson 92 - DNS Client (DNS Resolver) and DNS Server (Name Server)

Lesson 93 - DNS Namespace Hierarchy

Lesson 94 - Public DNS Namespace and Private DNS Namespace

Lesson 95 - Fully Qualified Domain Name (FQDN) and Partially Qualified Domain Name (PQDN)

Lesson 96 - What is DNS Resource Record

Lesson 97 - Authoritative DNS Server and Recursive DNS Server

Lesson 98 - What is DNS Zone

Lesson 99 - Primary DNS Server and Secondary DNS Server

Lesson 100 - What is a DNS Query, How DNS Query Works

Lesson 101 - Recursive and Iterative DNS Queries

Lesson 102 - What is Inverse (Reverse) DNS Query

Lesson 103 - What is VPN (Virtual Private Network)

Lesson 104 - What is IPSec and Why we need IPSec

Lesson 105 - Important Technical Terms Related with IPSec

Lesson 106 - What are the terms Encryption, Decryption, Clear-Text and Cipher-Text

Lesson 107 - What are the terms Symmetric Encryption and Assymetric Encryption

Lesson 108 - Important Symmetric and Assymmetric Encryption Algorithms

Lesson 109 - What are Hash values? Important Hash value Algorithms

Lesson 110 - How Hash Values can be used to determine Integrity of Data

Lesson 111 - What is HMAC (Hashed Message Authentication Code)

Lesson 112 - What is Diffie-Hellman Key Exchange

Lesson 113 - What is Diffie-Hellman Group

Lesson 114 - Main Components of IPSec - IKE, ESP and AH

Lesson 115 - IPSec VPN Modes - Tunnel Mode and Transport Mode

Lesson 116 - Security Association and Security Parameter Index

Lesson 117 - IKEv1 Main Mode, Aggressive Mode and Quick mode Message Exchanges

Lesson 118 - What is Perfect Forward Secrecy (PFS)

Lesson 119 - IKEv2 Phase 1 (IKE SA) and Phase 2 (Child SA) Message Exchanges

Lesson 120 - What is NAT-Traversal (Network Address Translation - Traversal)

Lesson 121 - IEEE 802.1X (dot1x) Port Based Authentication, Supplicant, Authenticator and Authentication Server

Lesson 122 - How IEEE 802.1X (dot1x) Port Based Authentication works

 

Part 02 - IPv6

 

Lesson 01 - Limitations of IPv4

Lesson 02 - IPv6 History and related RFCs

Lesson 03 - IPv6 Features

Lesson 04 - Differences Between IPv4 and IPv6

Lesson 05 - Unicast, Multicast and Anycast - Types of network communication in IPv6

Lesson 06 - IPv6 Datagram Header Format

Lesson 07 - Comparison between IPv4 Header and IPv6 Header

Lesson 08 - Introduction to IPv6 Addressing

Lesson 09 - What is prefix and prefix length in IPv6, Similarity between IPv4 subnet mask and IPv6 prefix

Lesson 10 - IPv6 Address formats

Lesson 11 - How to Simplify Shorten and Compress IPv6 Addresses

Lesson 12 - Types of IPv6 Addresses

Lesson 13 - Global Unicast IPv6 addresses

Lesson 14 - Different methods to assign a Global Unicast IPv6 address to an interface

Lesson 15 - What are IEEE EUI-64 based Global Unicast IPv6 addresses

Lesson 16 - How to configure Static Global Unicast IPv6 Address in a Cisco Router Interface

Lesson 17 - How to configure EUI-64 based Global Unicast IPv6 Address in a Cisco Router Interface

Lesson 18 - Link Local IPv6 Addresses, How Link Local IPv6 addresses are generated

Lesson 19 - Unique Local IPv6 Addresses

Lesson 20 - Multicast IPv6 Addresses

Lesson 21 - Anycast IPv6 Addresses

Lesson 22 - IPv6 Loopback Address and IPv6 Unspecified address

Lesson 23 - IPv6 Special Addresses and IPv6 well known prefixes

Lesson 24 - ICMPv6, Functions of ICMPv6, ICMPv6 Header, Types of ICMPv6 messages

Lesson 25 - NDP (Neighbour Discovery Protocol), functions of NDP, Neighbour Solicitation and Advertisement, Router Solicitation and Advertisement

Lesson 26 - Solicited-Node IPv6 Multicast Address

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