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Free Cisco Certified Network Associate (CCNA) Online Tutorials and Study Guides

You should have deep knowledge in Basic Networking, TCP/IP and IPv6 before start learning CCNA Routing and Switching. Click the links below to learn Basic Networking, TCP/IP and IPv6.

Lesson 01 - Introduction to Cisco Certified Network Associate (CCNA) Certification

Lesson 02 - Different Types of Router Memory

Lesson 03 - How to communicate with a Router using Console, Auxiliary, Telnet, SSH, HTTP and HTTPS connections

Lesson 04 - How to connect and access a router or switch using console connection

Lesson 05 - How to connect to router or switch console if serial port is not available in computer

Lesson 06 - How to use HyperTerminal Terminal Emulator to configure or monitor a Cisco Router or Switch

Lesson 07 - How to use PuTTY Terminal Emulator to configure or monitor a Cisco Router or Switch

Lesson 08 - Cisco's Three-tier Hierarchical Network Model

Lesson 09 - Benefits of Segmenting a network using a Router

Lesson 10 - Unicast, Multicast, Broadcast, What is Unicast, What is Multicast and What is Broadcast

Lesson 11 - What are Collision Domain and Broadcast Domain

Lesson 12 - Cisco Router Boot Sequence

Lesson 13 - What is Trivial File Transfer Protocol (TFTP)

Lesson 14 - How to install Solarwinds Trivial File Transfer Protocol (TFTP) Server

Lesson 15 - How to configure Solarwinds Trivial File Transfer Protocol (TFTP) Server to backup IOS and configuration files

Lesson 16 - Cisco Router Configuration Files

Lesson 17 - Naming Convention of Cisco IOS Image Files

Lesson 18 - How to backup IOS and configuration files to Trivial File Transfer Protocol (TFTP) Server

Lesson 19 - How to Upgrade or Install IOS from Trivial File Transfer Protocol (TFTP) Server

Lesson 20 - Cisco IOS Command Line modes

Lesson 21 - How to configure passwords to secure Cisco Router

Lesson 22 - Basic Cisco Router Configuration Commands

Lesson 23 - Cisco Router Show Commands

Lesson 24 - Important Key Combinations of Cisco IOS Command Line Interface (CLI)

Lesson 25 - Router interface naming convention

Lesson 26 - Cisco Router interface configuration commands

Lesson 27 - Different types of interfaces in a Cisco Router

Lesson 28 - What is a Subinterface in a Cisco Router and how to create a subinterface in a Cisco Router

Lesson 29 - What is loopback interface in a Cisco Router

Lesson 30 - What is null interface in a Cisco Router

Lesson 31 - How to configure Router Serial Interfaces

Lesson 32 - What is Cisco Discovery Protocol (CDP)

Lesson 33 - Important Cisco Discovery Protocol (CDP) IOS commands

Lesson 34 - What are Routing and Switching - Difference between Routing and Switching

Lesson 35 - Types of Routes - Static Routes and Dynamic Routes

Lesson 36 - What is the difference between Routing Protocols and Routed Protocols

Lesson 37 - Difference Between Routable Protocol and Non-Routable Protocol

Lesson 38 - What is Autonomous System and Autonomous System Number

Lesson 39 - What is the difference between IGP and EGP

Lesson 40 - What is Administrative Distance

Lesson 41 - Introduction to Static Routes and Default Routes

Lesson 42 - How to configure Static Routes and Default Routes

Lesson 43 - What is Dynamic Routing and different types of Dynamic Routing

Lesson 44 - What is Routing Metric Value

Lesson 45 - What is Convergence of Routing Tables

Lesson 46 - Introduction to Distance Vector Routing Protocols

Lesson 47 - Introduction to Routing Information Protocol (RIP)

Lesson 48 - Difference between RIPv1 and RIPv2

Lesson 49 - How to configure Routing Information Protocol (RIP)

Lesson 50 - RIP Metric (Hop Count) and Hop Count Calculation

Lesson 51 - Auto Summarization in RIP

Lesson 52 - RIP Authentication, RIPv2 Authentication, RIP Authentication Keychain Configuration

Lesson 53 - Introduction to Interior Gateway Routing Protocol (IGRP)

Lesson 54 - How to configure Interior Gateway Routing Protocol (IGRP)

Lesson 55 - What is Routing Loop and how to avoid Routing Loop

Lesson 56 - Introduction to Link State Routing Protocols

Lesson 57 - Introduction to Open Shortest Path First (OSPF) Protocol

Lesson 58 - How to configure Open Shortest Path First (OSPF)

Lesson 59 - What is OSPF Metric value Cost and OSPF default Cost Reference Bandwidth

Lesson 60 - What is OSPF Router ID, OSPF Router ID Selection Algorithm and How to Configure OSPF Router ID

Lesson 61 - What is OSPF Area, OSPF Hierarchical Network Design, and Advantages of OSPF Areas

Lesson 62 - Introduction to Hybrid Routing Protocols

Lesson 63 - Introduction to Enhanced Interior Gateway Routing Protocol (EIGRP)

Lesson 64 - How to configure Enhanced Interior Gateway Routing Protocol (EIGRP)

Lesson 65 - EIGRP Metric Calculation Formula with example

Lesson 66 - Auto summarization in EIGRP

Lesson 67 - Introduction to Access Control Lists (ACL)

Lesson 68 - Standard Access Control Lists (ACLs)

Lesson 69 - Where should a Standard Access Control List (ACL) be placed

Lesson 70 - Access Control List (ACL) - Wildcard Masks

Lesson 71 - How to create and configure Standard Access Control Lists (ACLs)

Lesson 72 - Extended Access Control Lists (ACLs)

Lesson 73 - Where should an Extended Access Control List (ACL) be placed

Lesson 74 - Extended Access Control List (ACL) - Operators

Lesson 75 - Extended Access Control List (ACL) - TCP and UDP port numbers and names

Lesson 76 - Extended Access Control List (ACL)- established Keyword

Lesson 77 - How to create and configure Extended Access Control Lists (ACLs)

Lesson 78 - How to create and configure Access Control Lists (ACLs) for vty lines (telnet and ssh)

Lesson 79 - Named Access Control Lists (ACLs)

Lesson 80 - How to create and configure Standard Named Access Control Lists (ACLs)

Lesson 81 - How to create and configure Extended Named Access Control List (ACL)

Lesson 82 - How to edit a Named Access Control List (ACL) on router

Lesson 83 - What is NAT (Network Address Translation)

Lesson 84 - What are the Advantages and Disadvantages of NAT (Network Address Translation)

Lesson 85 - Different types of NAT - Static NAT, Dynamic NAT and PAT

Lesson 86 - NAT Address types - Inside Local, Inside Global, Outside Local, Outside Global

Lesson 87 - How to configure static NAT in a Cisco Router

Lesson 88 - How to configure dynamic NAT in a Cisco Router

Lesson 89 - How to configure PAT (Port Address Translation or NAT overload) in a Cisco Router

Lesson 90 - What is GRE (Generic Routing Encapsulation)

Lesson 91 - How to Configure Generic Routing Encapsulation (GRE) Tunnel in Cisco IOS Router

Lesson 92 - Introduction to Network Switches

Lesson 93 - Difference between Network Switches and Bridges

Lesson 94 - Methods of Switching

Lesson 95 - Difference between Half-duplex and Full-duplex Switching

Lesson 96 - Functions of a Network Switch

Lesson 97 - What is switch management VLAN and how to configure Management VLAN

Lesson 98 - Basic Cisco Switch Configuration Commands

Lesson 99 - What is Broadcast Storm

Lesson 100 - What is Layer 2 Switching loop

Lesson 101 - What is Spanning Tree Protocol (STP)

Lesson 102 - What is Bridge Protocol Data Unit (BPDU) frame

Lesson 103 - Bridge Protocol Data Unit (BPDU) Frame Format

Lesson 104 - What are Spanning Tree Bridge Priority and Bridge ID values

Lesson 105 - What is a Root Bridge (Root Switch)

Lesson 106 - What is a Root Port

Lesson 107 - Spanning Tree Path Cost Value and How is Spanning Tree Path Cost Value Calculated

Lesson 108 - Spanning Tree Port Priority and Port ID Values

Lesson 109 - How to change Spanning Tree Bridge Root Priority value and What is Extended System ID

Lesson 110 - How to configure Spanning Tree Protocol Root Primary and Root Secondary

Lesson 111 - How to change Spanning Tree Port Priority Value

Lesson 112 - How Spanning Tree Protocol (STP) select Root Port

Lesson 113 - What is a Designated Port

Lesson 114 - How Spanning Tree Protocol (STP) select Designated Port

Lesson 115- Difference between Root Port and Designated Port

Lesson 116 - Spanning Tree Port States

Lesson 117 - How BPDU is generated and How BPDU works

Lesson 118 - Important Spanning Tree Protocol (STP) Timers and their default values

Lesson 119 - How to Configure and Change Spanning Tree Protocol (STP) Default Timer-Values for hello timer, forward delay timer and max age timer

Lesson 120 - Topology Changes in Spanning Tree Protocol (STP)

Lesson 121 - Spanning Tree Protocol (STP) Convergence

Lesson 122 - Where to place the Spanning Tree Protocol Root Switch (Root Bridge)

Lesson 123 - Spanning Tree Protocol (STP) UplinkFast, Backbone Fast and Portfast

Lesson 124 - What is Spanning Tree Protocol (STP) Uplink Fast

Lesson 125 - What is Spanning Tree Protocol (STP) Backbone Fast

Lesson 126 - What is Spanning Tree Protocol (STP) PortFast

Lesson 127 - How to configure and verify Spanning Tree Protocol (STP) PortFast

Lesson 128 - How to enable or disable Spanning Tree Protocol (STP)

Lesson 129 - What is Rapid Spanning Tree Protocol (RSTP)

Lesson 130 - Difference between Spanning Tree Protocol (STP) and Rapid Spanning Tree Protocol (RSTP)

Lesson 131 - Per-VLAN Spanning Tree (PVST) and Per-VLAN Spanning Tree Plus (PVST+)

Lesson 132 - What is Etherchannel in Cisco Switches and Routers, What is Link Aggregation and what is PAgP, LACP

Lesson 133 - EtherChannel PAgP and LACP modes

Lesson 134 - How to configure EtherChannel Port Aggregation Protocol (PAgP) in Cisco Switches

Lesson 135 - How to configure How to configure EtherChannel Link Aggregation Control Protocol (LACP) in Cisco Switches

Lesson 136 - Manual EtherChannel Configuration in Cisco Switches Using Channel mode "on"

Lesson 137 - What is Virtual Local Area Network (VLAN)

Lesson 138 - Advantages of VLAN

Lesson 139 - VLAN Membership Types

Lesson 140 - How to create and name static VLAN

Lesson 141 - How to view VLAN information using "show vlan" command

Lesson 142 - Types of VLAN connection links - Trunk Links and Access Links

Lesson 143 - VLAN Frame Tagging

Lesson 144 - Inter-Switch Link (ISL) VLAN Tagging

Lesson 145 - IEEE 802.1Q VLAN Tagging

Lesson 146 - What is Native VLAN

Lesson 147 - How to configure VLAN trunk link and native VLAN

Lesson 148 - How to configure and assign a switch access port to a VLAN

Lesson 149 - What is VLAN Trunking Protocol (VTP)

Lesson 150 - What is VLAN Trunking Protocol (VTP) Domain

Lesson 151 - VLAN Trunking Protocol (VTP) Modes

Lesson 152 - VLAN Trunking Protocol (VTP) Advertisement Messages

Lesson 153 - How to configure VLAN Trunking Protocol (VTP)

Lesson 154 - How to view VLAN Trunking Protocol (VTP) information using "show vtp status" command

Lesson 155 - What is VLAN Trunking Protocol (VTP) Pruning

Lesson 156 - What is DTP (Dynamic Trunking Protocol)

Lesson 157 - Difference Between DTP "dynamic desirable" and "dynamic auto" Modes

Lesson 158 - How to configure DTP (Dynamic Trunking Protocol) Modes

Lesson 159 - Introduction to IPv6 and IPv6 Addresses

Lesson 160 - Introduction to IPv6 Routing and IPv6 Routing Protocols

Lesson 161 - How to configure IPv6 Static Routes in Cisco Routers

Lesson 162 - Introduction to RIPng (RIP Next Generation), RIP for IPv6

Lesson 163 - How to configure RIPng (RIP for IPv6) Routing Protocol in Cisco Routers

Lesson 164 - Differences between OSPFv2 and OSPFv3

Lesson 165 - How to configure OSPFv3 IPv6 Routing in Cisco Routers

 

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