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ICND1 - Interconnecting Cisco Networking Devices Part 1 v2.x


Duration: 5 Days




Delivery Method:

Software Assurance Value:

Microsoft CPE:

Course Information

Course Description

​Interconnecting Cisco Networking Devices, Part 1 (ICND1) v2.0 is a five-day, instructor-led training course that teaches learners how to install, operate, configure, and verify a basic IPv4 and IPv6 network, including configuring a LAN switch, configuring an IP router, connecting to a WAN, and identifying basic security threats. Optionally, this course can be followed by the Interconnecting Cisco Networking Devices, Part2 (ICND2) v2.0 course, which covers topics in more depth and teaches learners how to perform basic troubleshooting steps in enterprise branch office networks, preparing learners for Cisco CCNA certification.

Course Objectives

​After completing this course, the student will be able to:

  • Describe network fundamentals and build simple LANs
  • Establish Internet connectivity
  • Manage network device security
  • Expand small- to medium-sized networks with WAN connectivity
  • Describe IPv6 basics

Course Audience

​Target Candidate: Individuals seeking the Cisco CCENT certification, or Cisco CCNA Routing and Switching certification. The course is also appropriate for pre-sales and post-sales network engineers involved in the installation and support of enterprise branch office networks.

Key Job Tasks:

Configure: Implement the identified solution by applying the planned implementation processes using Cisco IOS commands and applications in the correct order to the selected devices and portions of the network.

Verify: Use the appropriate show and debug commands and applications to ensure that the solution was correctly implemented and is performing as desired.

Job roles: Entry Level Network Engineer, Network Administrator, Network Support Technician or Help Desk Technician.

Course Outline

​Module 1: Building a Simple Network

Lesson 1: Exploring the Functions of Networking

What Is a Network?

Physical Components of a Network

Interpreting a Network Diagram

Impact of User Applications on the Network

Characteristics of a Network

Physical vs. Logical Topologies


Lesson 2: Understanding the Host-to-Host Communications Model

Introducing Host-to-Host Communications

OSI Reference Model

TCP/IP Protocol Suite

Encapsulation and De-Encapsulation

Peer-to-Peer Communications


Lesson 3: Introducing LANs

Local Area Networks

LAN Components

Need for Switches



Lesson 4: Operating Cisco IOS Software

Cisco IOS Software Features and Functions

Cisco IOS CLI Functions

User EXEC Mode

Privileged EXEC Mode

Help Functions in the CLI

CLI Error Messages

Managing Cisco IOS Configurations

Improving the User Experience in the CLI


Lesson 5: Starting a Switch

Switch Installation

Switch LED Indicators

Connecting to a Console Port

Basic Switch Configuration

Verifying the Switch Initial Startup Status


Lesson 6: Understanding Ethernet and Switch Operation

Ethernet LAN Connection Media

Ethernet Frame Structure

MAC Addresses

Switching Operation

Duplex Communication

Configuring Duplex and Speed Options


Lesson 7: Troubleshooting Common Switch Media Issues

Common Troubleshooting Tools

Media Issues

Troubleshooting Switch Media Issues

Port Issues

Troubleshooting Port Issues


Lesson 8: Module Summary


Lesson 9: Module Self-Check

Module 2: Establishing Internet Connectivity

Lesson 1: Understanding the TCP/IP Internet Layer

Internet Protocol

IPv4 Address Representation

IPv4 Header Address Fields

Decimal and Binary Systems

Decimal-to-Binary Conversion

IP Address Classes

Reserved IPv4 Addresses

Domain Name System

Verifying the IPv4 Address of a Host


Lesson 2: Understanding IP Addressing and Subnets


Subnet Masks

Octet Values of a Subnet Mask

Default Gateways

Computing Usable Subnetworks and Hosts

Applying Subnet Masks

Determining the Network Addressing Scheme

Example: Addressing Scheme

Variable-Length Subnet Mask

VLSM Example


Lesson 3: Understanding the TCP/IP Transport Layer

TCP/IP Transport Layer Functions

Reliable vs. Best-Effort Transport

TCP vs. UDP Analogy

UDP Characteristics

TCP Characteristics

TCP/IP Applications


Lesson 4: Exploring the Functions of Routing

Role of a Router

Router Characteristics

Router Functions

Path Determination

Routing Table

Types of Routes

Dynamic Routing Protocols


Lesson 5: Configuring a Cisco Router

Initial Router Startup

Initial Router Setup

Configuring Router Interfaces

Configuring the Cisco Router IP Address

Verifying Interface Configuration and Status

Exploring Connected Devices

Cisco Discovery Protocol

Discovering Neighbors Using Cisco Discovery Protocol


Lesson 6: Exploring the Packet Delivery Process

Layer 2 Addressing

Layer 3 Addressing

Address Resolution Protocol

Host-to-Host Packet Delivery

Role of a Switch in Packet Delivery


Lesson 7: Enabling Static Routing

Routing Operations

Static and Dynamic Routing Comparison

When to Use Static Routing

Static Route Configuration

Default Routes

Static Route Configuration Verification


Lesson 8: Managing Traffic Using ACLs

Using ACLs

ACL Operation

ACL Wildcard Masking

Wildcard Bit Mask Abbreviations

Types of ACLs

Testing an IP Packet Against a Numbered Standard Access List

Basic Configuration of Numbered Standard IPv4 ACLs


Lesson 9: Enabling Internet Connectivity

The Demarcation Point

Dynamic Host Configuration Protocol

Options for Configuring a Provider-Assigned IP Address

Configuring a Static Provider-Assigned IP Address

Configuring a DHCP Client

Public vs. Private IPv4 Addresses

Introducing NAT

Types of Addresses in NAT

Types of NAT

Understanding Static NAT

Configuring Static NAT

Verifying Static NAT Configuration

Understanding Dynamic NAT

Configuring Dynamic NAT

Verifying Dynamic NAT Configuration

Understanding PAT

Configuring PAT

Verifying PAT Configuration

Troubleshooting NAT

Troubleshooting NAT Case Study


Lesson 10: Module Summary


Lesson 11: Module Self-Check

Module 3: Managing Network Device Security

Lesson 1: Securing Administrative Access

Network Device Security Overview

Securing Access to Privileged EXEC Mode

Securing Console Access

Securing Remote Access

Enabling Remote Access Connectivity

Limiting Remote Access with ACLs

External Authentication Options

Configuring the Login Banner


Lesson 2: Implementing Device Hardening

Securing Unused Ports

Port Security

Port Security Configuration

Port Security Verification

Disabling Unused Services

Network Time Protocol

Configuring NTP

Verifying NTP


Lesson 3: Implementing Traffic Filtering with ACLs

Using ACLs to Filter Network Traffic

ACL Operation

Applying ACLs to Interfaces

The Need for Extended ACLs

Configuring Numbered, Extended IPv4 ACLs

Configuring Named ACLs

ACL Configuration Guidelines

Monitoring ACLs

Troubleshooting Common ACL Errors


Lesson 4: Module Summary


Lesson 5: Module Self-Check

Module 4: Building a Medium-Sized Network

Lesson 1: Implementing VLANs and Trunks

Issues in a Poorly Designed Network

VLAN Introduction

Trunking with 802.1Q

Creating a VLAN

Assigning a Port to a VLAN

Configuring an 802.1Q Trunk

VLAN Design Considerations

Physical Redundancy in a LAN


Lesson 2: Routing Between VLANs

Purpose of Inter-VLAN Routing

Options for Inter-VLAN Routing

Configuring a Router with a Trunk Link


Lesson 3: Using a Cisco Network Device as a DHCP Server

Need for a DHCP Server

Understanding DHCP

Configuring a DHCP Server

Monitoring DHCP Server Functions

DHCP Relay Agent


Lesson 4: Introducing WAN Technologies

Introducing WANs

WANs vs. LANs

Role of Routers in WANs

WAN Communication Link Options

Point-to-Point Connectivity

Configuring a Point-to-Point Link


Lesson 5: Introducing Dynamic Routing Protocols

Purpose of Dynamic Routing Protocols

Interior and Exterior Routing Protocols

Distance Vector and Link-State Routing Protocols

Understanding Link-State Routing Protocols


Lesson 6: Implementing OSPF

Introducing OSPF

OSPF Adjacencies

SPF Algorithm

Router ID

Configuring Single-Area OSPF

Verifying OSPF Configuration


Lesson 7: Module Summary


Lesson 8: Module Self-Check

Module 5: Introducing IPv6

Lesson 1: Introducing Basic IPv6

IPv4 Addressing Exhaustion Workarounds

IPv6 Features

IPv6 Addresses

IPv6 Unicast Addresses

IPv6 Addresses Allocation

Basic IPv6 Connectivity


Lesson 2: Understanding IPv6

IPv6 Header Changes and Benefits


Neighbor Discovery

Stateless Autoconfiguration


Lesson 3: Configuring IPv6 Routing

Routing for IPv6

Static Routing



Lesson 4: Module Summary


Lesson 5: Module Self-Check

Module S: ICND1 Superlab

Lab Outline 

Lab 1-1: Performing Switch Startup and Initial Configuration

Lab 1-2: Troubleshooting Switch Media Issues

Lab 2-1: Performing Initial Router Setup and Configuration

Lab 2-2: Connecting to the Internet

Lab 3-1: Enhancing the Security of the Initial Configuration

Lab 3-2: Device Hardening

Lab 3-3: Filtering Traffic with ACLs

Lab 4-1: Configuring Expanded Switched Networks

Lab 4-2: Configuring DHCP Server

Lab 4-3: Implementing OSPF

Lab 5-1: Configure and Verify Basic IPv6

Lab 5-2: Configure and Verify Stateless Autoconfiguration

Lab 5-3: Configure and Verify IPv6 Routing

Lab S-1: ICND1 Superlab

Course Prerequisites

​The knowledge and skills that a learner must have before attending this course are as follows:

  • Basic computer literacy
  • Basic PC operating system navigation skills
  • Basic Internet usage skills
  • Basic IP address knowledge

Course Schedule
This course is not scheduled yet.