Interconnecting Cisco Networking Devices Part 1 (ICND1) v1.0 en México, D.F.

TABLE OF CONTENTS

Part I Networking Fundamentals

Chapter 1 Introduction to Computer Networking Concepts

- Perspectives on Networking
- The Flintstones Network: The First Computer Network?

Chapter 2 The TCP/IP and OSI Networking Models

The TCP/IP Protocol Architecture
- The TCP/IP Application Layer
- The TCP/IP Transport Layer
- The TCP/IP Internet Layer
- The TCP/IP Network Access Layer
- Data Encapsulation Terminology

The OSI Reference Model
- Comparing OSI and TCP/IP
- OSI Layers and Their Functions
- OSI Layering Concepts and Benefits
- OSI Encapsulation Terminology

Chapter 3 Fundamentals of LANs

- An Overview of Modern Ethernet LANs
- A Brief History of Ethernet
- The Original Ethernet Standards: 10BASE2 and 10BASE5
- Repeaters
- Building 10BASE-T Networks with Hubs

Ethernet UTP Cabling
- UTP Cables and RJ-45 Connectors
- Transmitting Data Using Twisted Pairs
- UTP Cabling Pinouts for 10BASE-T and 100BASE-TX
- 1000BASE-T Cabling

Improving Performance by Using Switches Instead of Hubs
- Increasing Available Bandwidth Using Switches
- Doubling Performance by Using Full-Duplex Ethernet
- Ethernet Layer 1 Summary

Ethernet Data-Link Protocols
- Ethernet Addressing
- Ethernet Framing
- Identifying the Data Inside an Ethernet Frame
- Error Detection

Chapter 4 Fundamentals of WANs

OSI Layer 1 for Point-to-Point WANs
- WAN Connections from the Customer Viewpoint
- WAN Cabling Standards
- Clock Rates, Synchronization, DCE, and DTE
- Building a WAN Link in a Lab
- Link Speeds Offered by Telcos

OSI Layer 2 for Point-to-Point WANs
- HDLC
- Point-to-Point Protocol
- Point-to-Point WAN Summary

Frame Relay and Packet-Switching Services
- The Scaling Benefits of Packet Switching
- Frame Relay Basics

Chapter 5 Fundamentals of IP Addressing and Routing

Routing (Forwarding)
- PC1’s Logic: Sending Data to a Nearby Router
- R1 and R2’s Logic: Routing Data Across the Network
- R3’s Logic: Delivering Data to the End Destination
- Network Layer Interaction with the Data Link Layer
- IP Packets and the IP Header
- Network Layer (Layer 3) Addressing
- Routing Protocols

IP Addressing
- IP Addressing Definitions
- How IP Addresses Are Grouped
- Classes of Networks
- The Actual Class A, B, and C Network Numbers
- IP Subnetting

IP Routing
- Host Routing
- Router Forwarding Decisions and the IP Routing Table

IP Routing Protocols

Network Layer Utilities
- Address Resolution Protocol and the Domain Name System
- DNS Name Resolution
- The ARP Process
- Address Assignment and DHCP
- CMP Echo and the ping Command

Chapter 6 Fundamentals of TCP/IP Transport, Applications, and Security

TCP/IP Layer 4 Protocols: TCP and UDP
- Transmission Control Protocol
- Multiplexing Using TCP Port Numbers
- Popular TCP/IP Applications
- Error Recovery (Reliability)
- Flow Control Using Windowing
- Connection Establishment and Termination
- Data Segmentation and Ordered Data Transfer
- User Datagram Protocol

TCP/IP Applications
- QoS Needs and the Impact of TCP/IP Applications
- The World Wide Web, HTTP, and SSL
- Universal Resource Locators
- Finding the Web Server Using DNS
- Transferring Files with HTTP

Network Security
- Perspectives on the Sources and Types of Threats
- Firewalls and the Cisco Adaptive Security Appliance (ASA)
- Anti-x
- Intrusion Detection and Prevention
- Virtual Private Networks (VPN)

Part II LAN Switching

Chapter 7 Ethernet LAN Switching Concepts

LAN Switching Concepts
- Historical Progression: Hubs, Bridges, and Switches
- Switching Logic
- The Forward Versus Filter Decision
- How Switches Learn MAC Addresses
- Flooding Frames
- Avoiding Loops Using Spanning Tree Protocol
- Internal Processing on Cisco Switches

LAN Design Considerations
- Collision Domains and Broadcast Domains
- Collision Domains
- Broadcast Domains
- The Impact of Collision and Broadcast Domains on LAN Design
- Virtual LANs (VLAN)
- Campus LAN Design Terminology
- Ethernet LAN Media and Cable Lengths

Chapter 8 Operating Cisco LAN Switches

Accessing the Cisco Catalyst 2960 Switch CLI
- Cisco Catalyst Switches and the 2960 Switch
- Switch Status from LEDs
- Accessing the Cisco IOS CLI
- CLI Access from the Console
- Accessing the CLI with Telnet and SSH
- Password Security for CLI Access
- User and Enable (Privileged) Modes
- CLI Help Features
- The debug and show Commands

Configuring Cisco IOS Software
- Configuration Submodes and Contexts
- Storing Switch Configuration Files
- Copying and Erasing Configuration Files
- Initial Configuration (Setup Mode)

Chapter 9 Ethernet Switch Configuration

Configuration of Features in Common with Routers
- Securing the Switch CLI
- Configuring Simple Password Security
- Configuring Usernames and Secure Shell (SSH)
- Password Encryption
- The Two Enable Mode Passwords
- Console and vty Settings
- Banners
- History Buffer Commands
- The logging synchronous and exec-timeout Commands

LAN Switch Configuration and Operation
- Configuring the Switch IP Address
- Configuring Switch Interfaces
- Port Security
- VLAN Configuration
- Securing Unused Switch Interfaces

Chapter 10 Ethernet Switch Troubleshooting

Perspectives on Network Verification and Troubleshooting
- Attacking Sim Questions
- Simlet Questions
- Multiple-Choice Questions
- Approaching Questions with an Organized Troubleshooting Process
- Isolating Problems at Layer 3, and Then at Layers 1 and 2

Verifying the Network Topology with Cisco Discovery Protocol

Analyzing Layer 1 and 2 Interface Status
- Interface Status Codes and Reasons for Nonworking States
- Interface Speed and Duplex Issues
- Common Layer 1 Problems on Working Interfaces
- Analyzing the Layer 2 Forwarding Path with the MAC Address Table
- Analyzing the Forwarding Path
- Port Security and Filtering

Chapter 11 Wireless LANs

Wireless LAN Concepts
- Comparisons with Ethernet LANs
- Wireless LAN Standards
- Modes of 802.11 Wireless LANs
- Wireless Transmissions (Layer 1)
- Wireless Encoding and Nonoverlapping DSSS Channels
- Wireless Interference
- Coverage Area, Speed, and Capacity
- Media Access (Layer 2)

Deploying WLANs

Wireless LAN Implementation Checklist
- Step 1: Verify the Existing Wired Network
- Step 2: Install and Configure the AP’s Wired and IP Details
- Step 3: Configure the AP’s WLAN Details
- Step 4: Install and Configure One Wireless Client
- Step 5: Verify That the WLAN Works from the Client

Wireless LAN Security
- WLAN Security Issues
- The Progression of WLAN Security Standards
- Wired Equivalent Privacy (WEP)
- SSID Cloaking and MAC Filtering
- The Cisco Interim Solution Between WEP and 802.11i
- Wi-Fi Protected Access (WPA)
- IEEE 802.11i and WPA-2

Part III IP Routing

Chapter 12 IP Addressing and Subnetting

Suggested Subnetting Preparation Plan
- More Practice Using a Subnet Calculator
- IP Addressing and Routing

IP Addressing Review
- Public and Private Addressing
- IP Version 6 Addressing
- IP Subnetting Review
- IP Routing Review

Math Operations Used When Subnetting
- Converting IP Addresses and Masks from Decimal to Binary and Back Again
- Performing a Boolean AND Operation
- Prefix Notation/CIDR Notation
- Binary Process to Convert Between Dotted Decimal and Prefix Notation
- Decimal Process to Convert Between Dotted Decimal and Prefix Notation
- Practice Suggestions

Analyzing and Choosing Subnet Masks
- Analyzing the Subnet Mask in an Existing Subnet Design
- The Three Parts: Network, Subnet, and Host
- Binary Process: Finding the Number of Network, Subnet, and Host Bits
- Decimal Process: Finding the Number of Network, Subnet, and Host Bits
- Determining the Number of Subnets and Number of Hosts Per Subnet
- Number of Subnets: Subtract 2, or Not?
- Practice Examples for Analyzing Subnet Masks

Choosing a Subnet Mask that Meets Design Requirements
- Finding the Only Possible Mask
- Finding Multiple Possible Masks
- Choosing the Mask that Maximizes the Number of Subnets or Hosts
- Practice Suggestions

Analyzing Existing Subnets
- Finding the Subnet Number: Binary
- Finding the Subnet Number: Binary Shortcut
- Finding the Subnet Broadcast Address: Binary
- Finding the Range of Valid IP Addresses in a Subnet
- Finding the Subnet, Broadcast Address, and Range of Addresses: Decimal Process
- Decimal Process with Easy Masks
- Decimal Process with Difficult Masks
- Finding the Broadcast Address: Decimal

Design: Choosing the Subnets of a Classful Network
- Finding All Subnets with Fewer Than 8 Subnet Bits
- Finding All Subnets with Exactly 8 Subnet Bits

Chapter 13 Operating Cisco Routers

Installing Cisco Routers
- Installing Enterprise Routers
- Cisco Integrated Services Routers
- Physical Installation

Installing Internet Access Routers
- A SOHO Installation with a Separate Switch, Router, and Cable Modem
- A SOHO Installation with an Integrated Switch, Router, and DSL Modem
- Regarding the SOHO Devices Used in This Book

Cisco Router IOS CLI
- Comparisons Between the Switch CLI and Router CLI
- Router Interfaces
- Interface Status Codes
- Router Interface IP Addresses
- Bandwidth and Clock Rate on Serial Interfaces
- Router Auxiliary (Aux) Port
- Initial Configuration (Setup Mode)
- Upgrading Cisco IOS Software and the Cisco IOS Software Boot Process
- Upgrading a Cisco IOS Software Image into Flash Memory
- The Cisco IOS Software Boot Sequence
- The Three Router Operating Systems
- The Configuration Register
- How a Router Chooses Which OS to Load
- The show version Command and Seeing the Configuration Register’s Value

Chapter 14 Routing Protocol Concepts and Configuration

Connected and Static Routes
- Connected Routes
- Static Routes
- Extended ping Command
- Default Routes

Routing Protocol Overview
- RIP-2 Basic Concepts
- Comparing and Contrasting IP Routing Protocols
- Interior and Exterior Routing Protocols
- Routing Protocol Types/Algorithms
- Metrics
- Autosummarization and Manual Summarization
- Classless and Classful Routing Protocols
- Convergence

Configuring and Verifying RIP-2

RIP-2 Configuration
- Sample RIP Configuration
- RIP-2 Verification
- Interpreting the Output of the show ip route Command
- Administrative Distance
- The show ip protocols Command
- Examining RIP Messages with debug

Chapter 15 Troubleshooting IP Routing

IP Troubleshooting Tips and Tools
- IP Addressing
- Avoiding Reserved IP Addresses
- One Subnet, One Mask, for Each LAN

Host Networking Commands

Finding the Matching Route on a Router
- The show ip arp Command
- The traceroute Command
- Telnet and Suspend

Part IV Wide-Area Networks

Chapter 16 WAN Concepts

WAN Technologies
- Perspectives on the PSTN
- Analog Modems
- Digital Subscriber Line
- DSL Types, Speeds, and Distances
- DSL Summary
- Cable Internet
- Comparison of Remote-Access Technologies
- ATM
- Packet Switching Versus Circuit Switching
- Ethernet as a WAN Service

IP Services for Internet Access
- Address Assignment on the Internet Access Router
- Routing for the Internet Access Router
- NAT and PAT

Chapter 17 WAN Configuration

Configuring Point-to-Point WANs
- Configuring HDLC
- Configuring PPP