18 - 238 CCNA 2: Routers and Routing Basics v3.1 Instructor Guide – Module 2 Copyright © 2004, Cisco Systems, Inc.
Module 2: Introduction to Routers Overview
Consider the prior knowledge of students when teaching Module 2. Some students may be
familiar with command-line interfaces (CLIs). Students who have only used GUIs may not
know how to use CLIs to interact with a computer. Students should experiment with CLIs to
learn how to interact with a router.
Module 2 Caution
Students need to know what the IOS is and what it does. They also need to know the
difference between the configuration file and the IOS. It is also important for students to feel
comfortable when they enter into and move around in the CLI. Do not move too quickly
through these labs. If students are uncomfortable with the CLI, they will have difficulties with
more complex labs.
Students who complete this module should be able to perform the following tasks:
• Describe the purpose of the IOS
• Describe the basic operation of the IOS
• Identify various IOS features
• Identify the methods to establish a command-line interface (CLI) session with the
router
• Move between the user command executive (EXEC) and privileged EXEC modes
• Establish a HyperTerminal session on a router
• Log into a router
• Use the help feature in the command-line interface
• Troubleshoot command errors