Interconnecting Cisco Networking Devices Part 1 (ICND1)

Course Overview      

This course will teach students about building a simple network, establishing internet connectivity, managing network device security, building a medium-sized network, and IPv6.

Course Introduction                                                                                                                                                          2m

Module01 – Building a Simple Network                                                                                                                     3h 13m

Networking Functions

Network Connections

Components of a Network

Looking at a Network Diagram

Applications Found on the Network

Design Issues of a Network

Physical Topology Types

Logical Topologies


Understanding the Host-to-Host Communications Model

Examples of Host-to-Host Communications

OSI Reference Model

The TCP/IP Stack

The Encapsulation Process

Data De-Encapsulation

Communicating Peer-to-Peer


Introducing LANs

Describing the LAN

Components of the LAN

Understanding the Collision Domain

About the Switch


Introduction to the IOS

Why the IOS

Basic Functions of the IOS

The User EXEC Mode

Privileged EXEC Mode

Getting CLI Help

Example of Using Context-Sensitive Help

Example Error Messages

Managing IOS Configurations

Viewing the Running-Config

Viewing the Startup-Config

Managing Cisco IOS Configuration

Managing the IOS Configuration

Copy Options


Improving the Use of the CLI


Starting a Switch

Installing the Switch

Understanding the LED Indicators

Initial Console Connection

Configuration Basics

Viewing the Initial Startup Status


Understanding Ethernet and Switch Operation

Media for Ethernet

Ethernet Frames

Communication Types

Introducing the MAC Address

How the Switch Works

Understanding Duplex

Configuring Duplex and Speed

Results of Duplex Settings

Results of Duplex/Speed Settings


Troubleshooting Common Switch Media Issues

Troubleshooting Tools

Problems with Media

Troubleshooting Flow Chart

Understanding Interface Status

Understanding Interface Statistics

Interface Statistics

Port Problems

Troubleshooting Flow Chart 2

Troubleshooting Port Issues


Demo – Perform Switch Startup

Demo – Troubleshooting Switch Media Issues

Demo – Command Line Help

Module 01 Review

Module 02 – Establishing Internet Connectivity                                                                                                          5h 2m

Understanding the TCP/IP Internet Layer


Breaking Down the IPv4 Address

IP Header

Number Systems

Base X Number System (eNotes)

Conversion to Binary

IPv4 Address Classes

Reserved IPv4 Addresses

What is DNS

Verify a Windows Host IP

Verify Switch IP Configuration


Understanding IP Addressing and Subnets

Why Subnets

Using a Subnet Mask

Subnet Mask Values

Default Class A Subnet Mask

Default Class B Subnet Mask

Default Class C Subnet Mask

Default Gateways

Host and Subnet Combinations for Class B

Using Subnet Masks

Network Addressing Scheme


VLSM Scenario


Understanding the TCP/IP Transport Layer

Transport Layer Functions


Comparing TCP and UDP


The UDP Header


TCP/IP Application Layer

TCP 3-Way Handshake (eNotes)


Exploring the Functions of Routing

The Router’s Role

Router Components

Function of the Router

Best Path Determination

The Routing Table

How Routes are Learned

Dynamic Routing Protocols

Comparing the DV to the LS


Configuring a Cisco Router

Initial Power On

Initial Router Setup

Router Configurations

Exploring Router Neighbors

Answer:  CDP


Show CDP Details


LLDP Limitations

LLDP Benefits


Exploring the Packet Delivery Process

Ethernet Addressing

Layer 3 Addressing

What is ARP

Host-to-Host Packet Delivery

What the Switch Does


Enabling Static Routing

Routing Operations Static vs Dynamic Routes Should You Use a Static Route?

Configure a Static Route

Default Routes

Verify Static Routes

Summary Managing Traffic Using ACLs What is an ACL?

How an ACL Operates

Wildcard Masking

Types of ACLs

Testing an IP Packet on a Numbered ACL

Basic ACL Configuration


Enabling Internet Connectivity

The Demarcation Point

What is DHCP

Service Provider Options

Configure a Static Provider Assigned IP Address

Configuring the Router as a DHCP Client What is RFC 1918 Private Addresses What is NAT?

Nomenclature of NAT

Example of NAT

NAT Options

Static NAT

Static NAT Configuration

Verifying Static NAT

Dynamic NAT

Verifying Dynamic NAT What is PAT?

Configuring PAT

Verifying PAT

Troubleshooting NAT

Troubleshooting Scenario


Demo – Performing Initial Router Setup Media Issues

Demo – Connecting to the Internet

Demo – Life of a Packet

Module 02 Review

Module 03 – Managing Network Device Security                                                                                                        3h 53m

Securing Administrative Access

Overview of Network Device Security

Securing Remote Access

Service Password Encryption

Securing Physical Access

Securing VTY Lines

Using SSH

SSH Clients

Remote Access Reply


Encryption Process (eNotes)

Configuration Steps

Using ACL for Remote Access Security

Other Authentication Options

Using the Login Banner


Implementing Device Hardening

Reducing Attack Vectors

How to Disable a Port

Introducing Port Security

How to Configure Port Security

Verify Port-Security

Disabling Services

Turning Off Unused Services


How to Configure NTP

Verify NTP



Authentication (eNotes)

AAA Configuration

Authentication Servers

AAA Configuration (Cont.)


Implementing Traffic Filtering with ACLs

Filtering Traffic with ACLs

How an Outbound ACL Functions

How to Apply ACL to an Interface

Introducing the Extended ACL

Creating a Numbered Extended ACL

Using a Named ACL

Best Practices

Monitoring ACLs

Troubleshooting ACL – Take 1

Troubleshooting ACL – Take 2

Troubleshooting ACL – Take 3

Troubleshooting ACL – Take 4

Troubleshooting ACL – Take 5

Troubleshooting ACL – Take 6

Troubleshooting ACL – Take 7


Demo – Enhancing the Security of the Initial Configuration

Demo – Device Hardening

Demo – Filtering Traffic with ACLs

Demo – Configuring SSH

Demo – Configuring NTP

Demo – AAA

Demo – DHCP Snooping

Module 03 Review

Module 04 – Building a Medium-Sized Network                                                                                                         3h 49m

Implementing VLANs and Trunks

Problems with a Poorly Designed Network

Introducing VLANs

Trunks and 802.1Q

Using Trunks

How to Create a VLAN

Verify the VLAN

Assign VLAN to an Access Port

Creating a Trunk


VTP Modes

VTP Configuration

VLAN Design Practices

Designing Redundancy


Routing Between VLANs

Introducing Inter-VLAN Routing

Ways to do Inter-VLAN Routing


Using a Cisco Network Device as a DHCP Server


How DHCP Works

Configuring DHCP on a Router

DHCP Monitoring

DHCP Relay Agent


Introducing WAN Technologies

Introducing WANs

Comparing WANs and LANs

Routers and the WAN

Types of WAN Links

Using Point-to-Point Connections


Introducing Dynamic Routing Protocols

Why Use a Dynamic Routing Protocol

Classifying Routing Protocols

IGP:  Distance Vector and Link-State Routing Protocols

Understanding the Link-State Protocol


RIPv2 Limitations


RIP Configuration



Implementing OSPF

Describing OSPF


The SPF Algorithm

Router ID

Configuring Single Area OSPF

Verify OSPF


Demo – Configuring Expanded Switch Networks

Demo – Configuring DHCP Server

Demo – Implementing OSPF

Demo – Troubleshooting OSPF

Demo – Implementing RIPv2

Module 04 Review

Module 05 – Introducing IPv6                                                                                                                                           1h 50m

Introducing Basic IPv6

Problems With IPv4

New Problems With the IPv4 Solutions

Features of IPv6

IPv6 Address Description

IPv6 Transmission Types

The IPv6 Unicast Address

EUI-64 Automatic Host ID

IPv6 Address Allocation

Basic IPv6 Commands

Example IPv6 Static Configuration

Verify IPv6 Address

Basic Connectivity Tests


Understanding IPv6

Review of the IPv4 Header

The IPv6 Header


Discovery Messages


SLAAC for Routers


Configuring IPv6 Routing

IPv6 Routing

Supported Routing Protocols

IPv6 Static Route

Dynamic Routing Protocols


Demo – IPv6 Addresses

Demo – Configure and Verify IPv6 Routing

Demo – IPv6 ACL

Demo – IPv6 RIP

Module 05 Review

Course Closure

Total Duration:  17h 49m