Wendell odom

Part I Review 80
Part II 
Implementing Ethernet LANs 83
Chapter 4 
Using the Command-Line Interface 84
“Do I Know This Already?” Quiz 84
Foundation Topics 86
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xiv CCNA 200-301 Official Cert Guide, Volume 1
Accessing the Cisco Catalyst Switch CLI 86
Cisco Catalyst Switches 86
Accessing the Cisco IOS CLI 87
Cabling the Console Connection 88
Accessing the CLI with Telnet and SSH 90
User and Enable (Privileged) Modes 91
Password Security for CLI Access from the Console 93
CLI Help Features 94
The debug and show Commands 95
Configuring Cisco IOS Software 96
Configuration Submodes and Contexts 97
Storing Switch Configuration Files 99
Copying and Erasing Configuration Files 101
Chapter Review 102
Chapter 5 
Analyzing Ethernet LAN Switching 106
“Do I Know This Already?” Quiz 106
Foundation Topics 108
LAN Switching Concepts 108
Overview of Switching Logic 109
Forwarding Known Unicast Frames 110
Learning MAC Addresses 113
Flooding Unknown Unicast and Broadcast Frames 114
Avoiding Loops Using Spanning Tree Protocol 114
LAN Switching Summary 115
Verifying and Analyzing Ethernet Switching 116
Demonstrating MAC Learning 117
Switch Interfaces 118
Finding Entries in the MAC Address Table 120
Managing the MAC Address Table (Aging, Clearing) 121
MAC Address Tables with Multiple Switches 123
Chapter Review 124
Chapter 6 
Configuring Basic Switch Management 126
“Do I Know This Already?” Quiz 126
Foundation Topics 128
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xv
Securing the Switch CLI 128
Securing User Mode and Privileged Mode with Simple Passwords 129
Securing User Mode Access with Local Usernames and Passwords 133
Securing User Mode Access with External Authentication Servers 135
Securing Remote Access with Secure Shell 136
Enabling IPv4 for Remote Access 139
Host and Switch IP Settings 140
Configuring IPv4 on a Switch 142
Configuring a Switch to Learn Its IP Address with DHCP 143
Verifying IPv4 on a Switch 143
Miscellaneous Settings Useful in the Lab 144
History Buffer Commands 144
The logging synchronous, exec-timeout, and no ip domain-lookup 
Commands 145
Chapter Review 146