Slutsåld
Rick Graziani teaches computer science and computer networking courses at Cabrillo College in Aptos, California. Rick has worked and taught in the computer networking and information technology field for almost 30 years. Prior to teaching, Rick worked in IT for various companies including Santa Cruz Operation, Tandem Computers, and Lockheed Missiles and Space Corporation. He holds an M.A. in computer science and systems theory from California State University Monterey Bay. Rick also does consulting work for Cisco and other companies. When Rick is not working, he is most likely surfing. Rick is an avid surfer who enjoys longboarding at his favorite Santa Cruz surf breaks. Allan Johnson entered the academic world in 1999 after 10 years as a business owner/operator to dedicate his efforts to his passion for teaching. He holds both an M.B.A. and an M.Ed. in occupational training and development. He is an information technology instructor at Del Mar College in Corpus Christi, Texas. In 2003, Allan began to commit much of his time and energy to the CCNA Instructional Support Team, providing services to Networking Academy instructors worldwide and creating training materials. He now works full time for the Academy in Learning Systems Development.
Introduction
Chapter 1 Introduction to Routing and Packet Forwarding
Objectives
Key Terms
Inside the Router
Routers Are Computers
Routers Are at the Network Center
Routers Determine the Best Path
Router CPU and Memory
CPU
RAM
ROM
Flash Memory
NVRAM
Internetwork Operating System (IOS)
Router Bootup Process
Bootup Process
Command-Line Interface
Verifying Router Bootup Process
IOS Version
ROM Bootstrap Program
Location of IOS
CPU and Amount of RAM
Interfaces
Amount of NVRAM
Amount of Flash
Configuration Register
Router Ports and Interfaces
Management Ports
Router Interfaces
Interfaces Belong to Different Networks
Example of Router Interfaces
Routers and the Network Layer
Routing Is Forwarding Packets
Routers Operate at Layers 1, 2, and 3
CLI Configuration and Addressing
Implementing Basic Addressing Schemes
Populating an Address Table
Basic Router Configuration
Host Name and Passwords
Configuring a Banner
Router Interface Configuration
Each Interface Belongs to a Different Network
Verifying Basic Router Configuration
Building the Routing Table
Introducing the Routing Table
show ip route Command
Directly Connected Networks
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