10 - 238 CCNA 2: Routers and Routing Basics v3.1 Instructor Guide – Module 1 Copyright © 2004, Cisco Systems, Inc.
Module 1: WANs and Routers Overview
When teaching Module 1, show the students how router configuration relates to the Internet,
which is a global internetwork made possible by routers. Students will learn the difference
between WANs and LANs, and will identify WAN connections, encapsulations, and protocols.
Module 1 Caution
WANs will be taught in detail in CCNA 4. In CCNA 2, it is important to teach students the
fundamental basics of WANs and roles that routers play in the WAN connection. Inform the
students that the serial interfaces will be used to simulate the DCE to DTE WAN connection.
Do not spend too much time on this module.
Students who complete this module should be able to:
• Identify organizations responsible for WAN standards
• Explain the difference between WANs and LANs and the types of addresses they
use
• Describe the role of a router in a WAN
• Identify internal components of a router and describe their functions
• Describe the physical characteristics of a router
• Identify common ports on a router
• Connect Ethernet, serial WAN, and console ports