CCNA Routing and Switching Portable Command Guide
3rd Edition
Published on 27. June 2013
Book
Paperback/Softback
320 pages
978-1-58720-430-2 (ISBN)
Description
Here are all the CCNA-level Routing and Switching commands you need in one condensed, portable resource. The CCNA Routing and Switching Portable Command Guide, Third Edition, is filled with valuable, easy-to-access information and is portable enough for use whether you're in the server room or the equipment closet.
The guide summarizes all CCNA certification-level Cisco IOS (R) Software commands, keywords, command arguments, and associated prompts, providing you with tips and examples of how to apply the commands to real-world scenarios. Configuration examples throughout the book provide you with a better understanding of how these commands are used in simple network designs.
This book has been completely updated to cover topics in the ICND1 100-101, ICND2 200-101, and CCNA 200-120 exams. Use this quick reference resource to help you memorize commands and concepts as you work to pass the CCNA Routing and Switching certification exam.
The book is organized into these parts:
* Part I TCP/IP v4
* Part II Introduction to Cisco Devices
* Part III Configuring a Router
* Part IV Routing
* Part V Switching
* Part VI Layer 3 Redundancy
* Part VII IPv6
* Part VIII Network Administration and Troubleshooting
* Part IX Managing IP Services
* Part X WANs
* Part XI Network Security
Quick, offline access to all CCNA Routing and Switching commands for research and solutions
Logical how-to topic groupings for a one-stop resource
Great for review before CCNA Routing and Switching certification exams
Compact size makes it easy to carry with you, wherever you go
"Create Your Own Journal" section with blank, lined pages allows you to personalize the book for your needs
"What Do You Want to Do?" chart inside back cover helps you to quickly reference specific tasks
The guide summarizes all CCNA certification-level Cisco IOS (R) Software commands, keywords, command arguments, and associated prompts, providing you with tips and examples of how to apply the commands to real-world scenarios. Configuration examples throughout the book provide you with a better understanding of how these commands are used in simple network designs.
This book has been completely updated to cover topics in the ICND1 100-101, ICND2 200-101, and CCNA 200-120 exams. Use this quick reference resource to help you memorize commands and concepts as you work to pass the CCNA Routing and Switching certification exam.
The book is organized into these parts:
* Part I TCP/IP v4
* Part II Introduction to Cisco Devices
* Part III Configuring a Router
* Part IV Routing
* Part V Switching
* Part VI Layer 3 Redundancy
* Part VII IPv6
* Part VIII Network Administration and Troubleshooting
* Part IX Managing IP Services
* Part X WANs
* Part XI Network Security
Quick, offline access to all CCNA Routing and Switching commands for research and solutions
Logical how-to topic groupings for a one-stop resource
Great for review before CCNA Routing and Switching certification exams
Compact size makes it easy to carry with you, wherever you go
"Create Your Own Journal" section with blank, lined pages allows you to personalize the book for your needs
"What Do You Want to Do?" chart inside back cover helps you to quickly reference specific tasks
More details
Edition
3rd edition
Language
English
Place of publication
Indianapolis
United States
Publishing group
Pearson Education (US)
Target group
Adult education
Professional and scholarly
Dimensions
Height: 229 mm
Width: 152 mm
Thickness: 17 mm
Weight
426 gr
ISBN-13
978-1-58720-430-2 (9781587204302)
Schweitzer Classification
Other editions
New editions
Scott Empson
CCNA Routing and Switching Portable Command Guide (ICND1 100-105, ICND2 200-105, and CCNA 200-125)
Book
06/2016
4th Edition
Cisco Press
€52.18
Shipment within 3-4 weeks
Previous edition
Scott Empson
CCNA Portable Command Guide
Book
08/2007
2nd Edition
Cisco Press
€48.46
Article exhausted; check for reprint
Person
Scott Empson is the chair of the Bachelor of Applied Information Systems Technology degree program at the Northern Alberta Institute of Technology in Edmonton, Alberta, Canada, where he teaches Cisco routing, switching, network design, and leadership courses in a variety of different programs (certificate, diploma, and applied degree) at the postsecondary level. Scott is also the program coordinator of the Cisco Networking Academy Program at NAIT, an Area Support Centre for the province of Alberta. He has a Masters of Education degree along with three undergraduate degrees: a Bachelor of Arts, with a major in English; a Bachelor of Education, again with a major in English/Language Arts; and a Bachelor of Applied Information Systems Technology, with a major in Network Management. He currently holds several industry certifications, including CCNP, CCDP, CCAI, C|EH and Network+. Before instructing at NAIT, he was a junior/senior high school English/language arts/computer science teacher at different schools throughout Northern Alberta. Scott lives in Edmonton, Alberta, with his wife, Trina, and two children, Zachariah and Shaelyn.
Content
Introduction xx
Part I TCP/IP v4
CHAPTER 1 How to Subnet 1
Class A-E Addresses 1
Converting Between Decimal Numbers and Binary 2
Subnetting a Class C Network Using Binary 2
Subnetting a Class B Network Using Binary 5
Binary ANDing 9
So Why AND? 10
Shortcuts in Binary ANDing 11
The Enhanced Bob Maneuver for Subnetting (or How to Subnet Anything in Under a Minute) 12
CHAPTER 2 VLSM 15
IP Subnet Zero 15
VLSM Example 16
Step 1 Determine How Many H Bits Will Be Needed to Satisfy the Largest Network 16
Step 2 Pick a Subnet for the Largest Network to Use 17
Step 3 Pick the Next Largest Network to Work With 18
Step 4 Pick the Third Largest Network to Work With 20
Step 5 Determine Network Numbers for Serial Links 21
CHAPTER 3 Route Summarization 25
Example for Understanding Route Summarization 25
Step 1: Summarize Winnipeg's Routes 26
Step 2: Summarize Calgary's Routes 27
Step 3: Summarize Edmonton's Routes 27
Step 4: Summarize Vancouver's Routes 28
Route Summarization and Route Flapping 30
Requirements for Route Summarization 30
Part II Introduction to Cisco Devices
CHAPTER 4 Cables and Connections 31
Connecting a Rollover Cable to Your Router or Switch 31
Using a USB Cable to Connect to Your Router or Switch 31
Terminal Settings 32
LAN Connections 33
Serial Cable Types 33
Which Cable to Use? 35
568A Versus 568B Cables 35
CHAPTER 5 The Command Line Interface 37
Shortcuts for Entering Commands 37
Using the ? Key to Complete Commands 37
Console Error Messages 38
Using the Question Mark for Help 38
enable Command 39
exit Command 39
disable Command 39
logout Command 39
Setup Mode 39
Keyboard Help 40
History Commands 41
terminal Commands 41
show Commands 42
Using the Pipe Parameter (|) with the show Command 42
Part III Confi guring a Router
CHAPTER 6 Confi guring a Single Cisco Router 45
Router Modes 45
Entering Global Configuration Mode 46
Configuring a Router Name 46
Configuring Passwords 46
Password Encryption 47
Interface Names 47
Moving Between Interfaces 50
Configuring a Serial Interface 50
Configuring a Fast Ethernet Interface 51
Configuring a Gigabit Ethernet Interface 51
Creating a Message-of-the-Day Banner 51
Creating a Login Banner 51
Setting the Clock Time Zone 52
Assigning a Local Host Name to an IP Address 52
The no ip domain-lookup Command 52
The logging synchronous Command 52
The exec-timeout Command 53
Saving Configurations 53
Erasing Configurations 53
show Commands 53
EXEC Commands in Configuration Mode: The do Command 54
Configuration Example: Basic Router Configuration 54
Boston Router 55
Part IV Routing
CHAPTER 7 Static Routing 57
Configuring a Static Route on a Router 57
The permanent Keyword (Optional) 58
Static Routes and Administrative Distance (Optional) 58
Configuring a Default Route on a Router 59
Verifying Static Routes 59
Configuration Example: Static Routes 60
Boston Router 60
Buffalo Router 61
Bangor Router 61
CHAPTER 8 EIGRP 63
Configuring Enhanced Interior Gateway Routing Protocol (EIGRP) 63
EIGRP Auto-Summarization 65
EIGRP Manual Summarization 65
Passive EIGRP Interfaces 65
Equal-Cost Load Balancing: Maximum Paths 66
Unequal-Cost Load Balancing: Variance 66
Bandwidth Use 67
Authentication 67
Verifying EIGRP 68
Troubleshooting EIGRP 69
Configuration Example: EIGRP 69
Austin Router 70
Houston Router 71
CHAPTER 9 Single-Area OSPF 73
Configuring OSPF 73
Using Wildcard Masks with OSPF Areas 74
Loopback Interfaces 75
Router ID 75
DR/BDR Elections 76
Modifying Cost Metrics 76
OSPF auto-cost reference-bandwidth 77
Authentication: Simple 77
Authentication: Using MD5 Encryption 78
Timers 78
Propagating a Default Route 78
Verifying OSPF Configuration 79
Troubleshooting OSPF 79
Configuration Example: Single Area OSPF 80
Austin Router 80
Houston Router 81
Galveston Router 82
CHAPTER 10 Multi-Area OSPF 83
Configuring Multi-Area OSPF 83
Passive Interfaces 84
Route Summarization 84
Configuration Example: Multi-Area OSPF 85
ASBR Router 86
ABR-1 Router 87
ABR-2 Router 88
Internal Router 89
Part V Switching
CHAPTER 11 Confi guring a Switch 91
Help Commands 91
Command Modes 91
Verifying Commands 92
Resetting Switch Configuration 92
Setting Host Names 92
Setting Passwords 93
Setting IP Addresses and Default Gateways 93
Setting Interface Descriptions 94
The mdix auto Command 94
Setting Duplex Operation 95
Setting Operation Speed 95
Managing the MAC Address Table 95
Configuring Static MAC Addresses 95
Switch Port Security 96
Verifying Switch Port Security 96
Sticky MAC Addresses 97
Configuration Example 97
CHAPTER 12 VLANs 101
Creating Static VLANs 101
Using VLAN Configuration Mode 101
Using VLAN Database Mode 102
Assigning Ports to VLANs 102
Using the range Command 103
Verifying VLAN Information 103
Saving VLAN Configurations 103
Erasing VLAN Configurations 104
Configuration Example: VLANs 104
CHAPTER 13 VLAN Trunking Protocol and Inter-VLAN Communication 107
Dynamic Trunking Protocol 107
Dynamic Trunking Protocol (DTP) 108
Setting the Encapsulation Type 108
VLAN Trunking Protocol (VTP) 109
Verifying VTP 110
Inter-VLAN Communication Using an External Router: Router-on-a-Stick 110
Inter-VLAN Communication on a Multilayer Switch Through a Switch Virtual Interface 111
Removing L2 Switchport Capability of a Switch Port 111
Configuring Inter-VLAN Communication 111
Inter-VLAN Communication Tips 112
Configuration Example: Inter-VLAN Communication 112
ISP Router 113
CORP Router 114
L2Switch2 (Catalyst 2960) 116
L3Switch1 (Catalyst 3560) 118
L2Switch1 (Catalyst 2960) 119
CHAPTER 14 Spanning Tree Protocol and EtherChannel 121
Spanning Tree Protocol 121
Enabling Spanning Tree Protocol 121
Configuring the Root Switch 122
Configuring a Secondary Root Switch 122
Configuring Port Priority 123
Configuring the Path Cost 123
Configuring the Switch Priority of a VLAN 123
Configuring STP Timers 124
Verifying STP 124
Optional STP Configurations 125
Changing the Spanning-Tree Mode 126
Extended System ID 126
Enabling Rapid Spanning Tree 127
Troubleshooting Spanning Tree 127
Configuration Example: STP 127
EtherChannel 129
Interface Modes in EtherChannel 130
Guidelines for Configuring EtherChannel 130
Configuring Layer 2 EtherChannel 131
Verifying EtherChannel 131
Configuration Example: EtherChannel 132
Part VI Layer 3 Redundancy
CHAPTER 15 HSRP and GLBP 137
Hot Standby Router Protocol 137
Configuring HSRP on a Router 138
Configuring HSRP on an L3 Switch 138
Default HSRP Configuration Settings 139
Verifying HSRP 139
HSRP Optimization Options 139
Preempt 140
HSRP Message Timers 140
Interface Tracking 141
Multiple HSRP 141
Debugging HSRP 142
Virtual Router Redundancy Protocol 143
Configuring VRRP 143
Verifying VRRP 144
Debugging VRRP 145
Gateway Load Balancing Protocol 145
Configuring GLBP 145
Verifying GLBP 147
Debugging GLBP 148
Configuration Example: GLBP 148
DLS1 149
DLS2 150
Part VII IPv6
CHAPTER 16 IPv6 153
Assigning IPv6 Addresses to Interfaces 153
IPv6 and RIPng 154
Configuration Example: IPv6 RIP 155
Austin Router 155
IPv6 Tunnels: Manual Overlay Tunnel 157
Juneau Router 157
Fairbanks Router 158
Static Routes in IPv6 159
Floating Static Routes in IPv6 160
Default Routes in IPv6 160
Verifying and Troubleshooting IPv6 160
IPv6 Ping 162
IPv6 Traceroute 162
CHAPTER 17 OSPFv3 163
IPv6 and OSPFv3 163
Enabling OSPF for IPv6 on an Interface 163
Enabling an OSPF for IPv6 Area Range 164
Enabling an IPv4 Router ID for OSPFv3 165
Forcing an SPF Calculation 165
Verifying and Troubleshooting IPv6 and OSPFv3 165
Configuration Example: OSPFv3 166
R3 Router 166
R2 Router 167
R1 Router 168
R4 Router 169
CHAPTER 18 EIGRP for IPv6 171
IPv6 and EIGRP 171
Enabling EIGRP for IPv6 on an Interface 171
Configuring the Percentage of Link Bandwidth Used by EIGRP 172
Configuring Summary Addresses 172
Configuring EIGRP Route Authentication 172
Configuring EIGRP Timers 172
Logging EIGRP Neighbor Adjacency Changes 173
Adjusting the EIGRP for IPv6 Metric Weights 173
Verifying and Troubleshooting EIGRP for IPv6 173
Configuration Example: EIGRP for IPv6 174
R3 Router 174
R2 Router 175
R1 Router 176
Part VIII Network Administration and Troubleshooting
CHAPTER 19 Backing Up and Restoring Cisco IOS Software and Confi gurations 177
Boot System Commands 177
The Cisco IOS File System 178
Viewing the Cisco IOS File System 178
Commonly Used URL Prefixes for Cisco Network Devices 178
Deciphering IOS Image Filenames 179
Backing Up Configurations to a TFTP Server 180
Restoring Configurations from a TFTP Server 180
Backing Up the Cisco IOS Software to a TFTP Server 181
Restoring/Upgrading the Cisco IOS Software from a TFTP Server 181
Restoring the Cisco IOS Software from ROM Monitor Mode Using Xmodem 182
Restoring the Cisco IOS Software Using the ROM Monitor Environmental Variables and tftpdnld Command 184
CHAPTER 20 Password-Recovery Procedures and the Confi guration Register 187
The Configuration Register 187
A Visual Representation 187
What the Bits Mean 187
The Boot Field 188
Console Terminal Baud Rate Settings 188
Changing the Console Line Speed: CLI 189
Changing the Console Line Speed: ROM Monitor Mode 189
Password-Recovery Procedures for Cisco Routers 190
Password Recovery for 2960 Series Switches 191
CHAPTER 21 Cisco Discovery Protocol (CDP) 193
Cisco Discovery Protocol 193
CHAPTER 22 Remote Connectivity Using Telnet or SSH 195
Configuring a Device to Accept a Remote Telnet Connection 195
Using Telnet to Remotely Connect to Other Devices 196
Verifying Telnet 197
Configuring the Secure Shell Protocol (SSH) 197
Verifying SSH 198
CHAPTER 23 Verifying End-to-End Connectivity 199
ICMP Redirect Messages 199
The ping Command 199
Examples of Using the ping and the Extended ping Commands 200
The traceroute Command 201
CHAPTER 24 Confi guring Network Management Protocols 203
Configuring SNMP 203
Configuring Syslog 204
Syslog Message Format 204
Syslog Severity Levels 205
Syslog Message Example 205
Configuring NetFlow 206
Verifying NetFlow 206
CHAPTER 25 Basic Troubleshooting 207
Viewing the Routing Table 207
Clearing the Routing Table 208
Determining the Gateway of Last Resort 208
Determining the Last Routing Update 208
OSI Layer 3 Testing 208
OSI Layer 7 Testing 209
Interpreting the show interface Command 209
Clearing Interface Counters 209
Using CDP to Troubleshoot 209
The traceroute Command 209
The show controllers Command 210
debug Commands 210
Using Time Stamps 210
Operating System IP Verification Commands 211
The ip http server Command 211
The netstat Command 211
The arp Command 211
CHAPTER 26 Cisco IOS Licensing 213
Cisco Licensing Earlier Than IOS 15.0 213
Cisco Licensing for the ISR G2 Platforms: IOS 15.0 and Later 215
Verifying Licenses 215
Cisco License Manager 215
Installing a Permanent License 216
Installing an Evaluation License 217
Backing Up a License 217
Uninstalling a License 217
Part IX Managing IP Services
CHAPTER 27 Network Address Translation 219
Configuring Dynamic NAT: One Private to One Public Address Translation 219
Configuring PAT: Many Private to One Public Address Translation 221
Configuring Static NAT: One Private to One Permanent Public Address Translation 222
Verifying NAT and PAT Configurations 223
Troubleshooting NAT and PAT Configurations 224
Configuration Example: PAT 224
ISP Router 224
Company Router 225
CHAPTER 28 Dynamic Host Confi guration Protocol (DHCP) 227
Configuring a DHCP Server on an IOS Router 227
Verifying and Troubleshooting DHCP Configuration 228
Configuring a DHCP Helper Address 228
DHCP Client on a Cisco IOS Software Ethernet Interface 229
Configuration Example: DHCP 229
Edmonton Router 229
Gibbons Router 231
Part X WANs
CHAPTER 29 Confi guring Serial Encapsulation: HDLC and PPP 233
Configuring HDLC Encapsulation on a Serial Line 233
Configuring Point-to-Point Protocol (PPP) on a Serial Line (Mandatory Commands) 233
Configuring PPP on a Serial Line (Optional Commands): Compression 234
Configuring PPP on a Serial Line (Optional Commands): Link Quality 234
Configuring PPP on a Serial Line (Optional Commands): Multilink 234
Configuring PPP on a Serial Line (Optional Commands): Authentication 234
Verifying and Troubleshooting a Serial Link/PPP Encapsulation 235
Configuration Example: PPP with CHAP Authentication 236
Boston Router 236
Buffalo Router 237
CHAPTER 30 Establishing WAN Connectivity Using Frame Relay 239
Configuring Frame Relay 239
Setting the Frame Relay Encapsulation Type 239
Setting the Frame Relay Encapsulation LMI Type 239
Setting the Frame Relay DLCI Number 240
Configuring a Frame Relay map Statement 240
Configuring a Description of the Interface (Optional) 240
Configuring Frame Relay Using Subinterfaces 240
Verifying Frame Relay 241
Troubleshooting Frame Relay 242
Configuration Example: Point-to-Point Frame Relay Using Subinterfaces and OSPF 242
Houston Router 242
Austin Router 244
Galveston Router 244
Laredo Router 245
Configuration Example: Point-to-Multipoint Frame Relay Using Subinterfaces and EIGRP 246
R1 Router 246
R2 Router 247
R3 Router 248
CHAPTER 31 Confi guring Generic Routing Encapsulation (GRE) Tunnels 249
Configuring a GRE Tunnel 249
Branch Router 249
HQ Router 250
Verifying a GRE Tunnel 250
CHAPTER 32 Confi guring Point-to-Point Protocol over Ethernet (PPPoE) 251
Configuring a DSL Connection using PPPoE 251
Step 1: Configure PPPoE (External Modem) 252
Step 2: Configure the Dialer Interface 253
Step 3: Define Interesting Traffic and Specify Default Routing 253
Step 4: Configure NAT Using an ACL 254
Step 5: Configure NAT Using a Route Map 254
Step 6: Configure DHCP Service 255
Step 7: Apply NAT Programming 255
Step 8: Verify a PPPoE Connection 255
Part XI Network Security
CHAPTER 33 Managing Traffi c Using Access Control Lists (ACL) 257
Access List Numbers 257
Using Wildcard Masks 258
ACL Keywords 258
Creating Standard ACLs 259
Applying Standard ACLs to an Interface 260
Verifying ACLs 260
Removing ACLs 260
Creating Extended ACLs 261
Applying Extended ACLs to an Interface 262
The established Keyword (Optional) 262
Creating Named ACLs 262
Using Sequence Numbers in Named ACLs 263
Removing Specific Lines in Named ACLs Using Sequence Numbers 264
Sequence Number Tips 264
Including Comments About Entries in ACLs 265
Restricting Virtual Terminal Access 265
Tips for Configuring ACLs 266
ACLs and IPv6 266
Configuration Examples: ACLs 267
Part XII Appendixes
APPENDIX A Binary/Hex/Decimal Conversion Chart 271
APPENDIX B Create Your Own Journal Here 279
9781587204302, TOC, 5/28/2013
Part I TCP/IP v4
CHAPTER 1 How to Subnet 1
Class A-E Addresses 1
Converting Between Decimal Numbers and Binary 2
Subnetting a Class C Network Using Binary 2
Subnetting a Class B Network Using Binary 5
Binary ANDing 9
So Why AND? 10
Shortcuts in Binary ANDing 11
The Enhanced Bob Maneuver for Subnetting (or How to Subnet Anything in Under a Minute) 12
CHAPTER 2 VLSM 15
IP Subnet Zero 15
VLSM Example 16
Step 1 Determine How Many H Bits Will Be Needed to Satisfy the Largest Network 16
Step 2 Pick a Subnet for the Largest Network to Use 17
Step 3 Pick the Next Largest Network to Work With 18
Step 4 Pick the Third Largest Network to Work With 20
Step 5 Determine Network Numbers for Serial Links 21
CHAPTER 3 Route Summarization 25
Example for Understanding Route Summarization 25
Step 1: Summarize Winnipeg's Routes 26
Step 2: Summarize Calgary's Routes 27
Step 3: Summarize Edmonton's Routes 27
Step 4: Summarize Vancouver's Routes 28
Route Summarization and Route Flapping 30
Requirements for Route Summarization 30
Part II Introduction to Cisco Devices
CHAPTER 4 Cables and Connections 31
Connecting a Rollover Cable to Your Router or Switch 31
Using a USB Cable to Connect to Your Router or Switch 31
Terminal Settings 32
LAN Connections 33
Serial Cable Types 33
Which Cable to Use? 35
568A Versus 568B Cables 35
CHAPTER 5 The Command Line Interface 37
Shortcuts for Entering Commands 37
Using the ? Key to Complete Commands 37
Console Error Messages 38
Using the Question Mark for Help 38
enable Command 39
exit Command 39
disable Command 39
logout Command 39
Setup Mode 39
Keyboard Help 40
History Commands 41
terminal Commands 41
show Commands 42
Using the Pipe Parameter (|) with the show Command 42
Part III Confi guring a Router
CHAPTER 6 Confi guring a Single Cisco Router 45
Router Modes 45
Entering Global Configuration Mode 46
Configuring a Router Name 46
Configuring Passwords 46
Password Encryption 47
Interface Names 47
Moving Between Interfaces 50
Configuring a Serial Interface 50
Configuring a Fast Ethernet Interface 51
Configuring a Gigabit Ethernet Interface 51
Creating a Message-of-the-Day Banner 51
Creating a Login Banner 51
Setting the Clock Time Zone 52
Assigning a Local Host Name to an IP Address 52
The no ip domain-lookup Command 52
The logging synchronous Command 52
The exec-timeout Command 53
Saving Configurations 53
Erasing Configurations 53
show Commands 53
EXEC Commands in Configuration Mode: The do Command 54
Configuration Example: Basic Router Configuration 54
Boston Router 55
Part IV Routing
CHAPTER 7 Static Routing 57
Configuring a Static Route on a Router 57
The permanent Keyword (Optional) 58
Static Routes and Administrative Distance (Optional) 58
Configuring a Default Route on a Router 59
Verifying Static Routes 59
Configuration Example: Static Routes 60
Boston Router 60
Buffalo Router 61
Bangor Router 61
CHAPTER 8 EIGRP 63
Configuring Enhanced Interior Gateway Routing Protocol (EIGRP) 63
EIGRP Auto-Summarization 65
EIGRP Manual Summarization 65
Passive EIGRP Interfaces 65
Equal-Cost Load Balancing: Maximum Paths 66
Unequal-Cost Load Balancing: Variance 66
Bandwidth Use 67
Authentication 67
Verifying EIGRP 68
Troubleshooting EIGRP 69
Configuration Example: EIGRP 69
Austin Router 70
Houston Router 71
CHAPTER 9 Single-Area OSPF 73
Configuring OSPF 73
Using Wildcard Masks with OSPF Areas 74
Loopback Interfaces 75
Router ID 75
DR/BDR Elections 76
Modifying Cost Metrics 76
OSPF auto-cost reference-bandwidth 77
Authentication: Simple 77
Authentication: Using MD5 Encryption 78
Timers 78
Propagating a Default Route 78
Verifying OSPF Configuration 79
Troubleshooting OSPF 79
Configuration Example: Single Area OSPF 80
Austin Router 80
Houston Router 81
Galveston Router 82
CHAPTER 10 Multi-Area OSPF 83
Configuring Multi-Area OSPF 83
Passive Interfaces 84
Route Summarization 84
Configuration Example: Multi-Area OSPF 85
ASBR Router 86
ABR-1 Router 87
ABR-2 Router 88
Internal Router 89
Part V Switching
CHAPTER 11 Confi guring a Switch 91
Help Commands 91
Command Modes 91
Verifying Commands 92
Resetting Switch Configuration 92
Setting Host Names 92
Setting Passwords 93
Setting IP Addresses and Default Gateways 93
Setting Interface Descriptions 94
The mdix auto Command 94
Setting Duplex Operation 95
Setting Operation Speed 95
Managing the MAC Address Table 95
Configuring Static MAC Addresses 95
Switch Port Security 96
Verifying Switch Port Security 96
Sticky MAC Addresses 97
Configuration Example 97
CHAPTER 12 VLANs 101
Creating Static VLANs 101
Using VLAN Configuration Mode 101
Using VLAN Database Mode 102
Assigning Ports to VLANs 102
Using the range Command 103
Verifying VLAN Information 103
Saving VLAN Configurations 103
Erasing VLAN Configurations 104
Configuration Example: VLANs 104
CHAPTER 13 VLAN Trunking Protocol and Inter-VLAN Communication 107
Dynamic Trunking Protocol 107
Dynamic Trunking Protocol (DTP) 108
Setting the Encapsulation Type 108
VLAN Trunking Protocol (VTP) 109
Verifying VTP 110
Inter-VLAN Communication Using an External Router: Router-on-a-Stick 110
Inter-VLAN Communication on a Multilayer Switch Through a Switch Virtual Interface 111
Removing L2 Switchport Capability of a Switch Port 111
Configuring Inter-VLAN Communication 111
Inter-VLAN Communication Tips 112
Configuration Example: Inter-VLAN Communication 112
ISP Router 113
CORP Router 114
L2Switch2 (Catalyst 2960) 116
L3Switch1 (Catalyst 3560) 118
L2Switch1 (Catalyst 2960) 119
CHAPTER 14 Spanning Tree Protocol and EtherChannel 121
Spanning Tree Protocol 121
Enabling Spanning Tree Protocol 121
Configuring the Root Switch 122
Configuring a Secondary Root Switch 122
Configuring Port Priority 123
Configuring the Path Cost 123
Configuring the Switch Priority of a VLAN 123
Configuring STP Timers 124
Verifying STP 124
Optional STP Configurations 125
Changing the Spanning-Tree Mode 126
Extended System ID 126
Enabling Rapid Spanning Tree 127
Troubleshooting Spanning Tree 127
Configuration Example: STP 127
EtherChannel 129
Interface Modes in EtherChannel 130
Guidelines for Configuring EtherChannel 130
Configuring Layer 2 EtherChannel 131
Verifying EtherChannel 131
Configuration Example: EtherChannel 132
Part VI Layer 3 Redundancy
CHAPTER 15 HSRP and GLBP 137
Hot Standby Router Protocol 137
Configuring HSRP on a Router 138
Configuring HSRP on an L3 Switch 138
Default HSRP Configuration Settings 139
Verifying HSRP 139
HSRP Optimization Options 139
Preempt 140
HSRP Message Timers 140
Interface Tracking 141
Multiple HSRP 141
Debugging HSRP 142
Virtual Router Redundancy Protocol 143
Configuring VRRP 143
Verifying VRRP 144
Debugging VRRP 145
Gateway Load Balancing Protocol 145
Configuring GLBP 145
Verifying GLBP 147
Debugging GLBP 148
Configuration Example: GLBP 148
DLS1 149
DLS2 150
Part VII IPv6
CHAPTER 16 IPv6 153
Assigning IPv6 Addresses to Interfaces 153
IPv6 and RIPng 154
Configuration Example: IPv6 RIP 155
Austin Router 155
IPv6 Tunnels: Manual Overlay Tunnel 157
Juneau Router 157
Fairbanks Router 158
Static Routes in IPv6 159
Floating Static Routes in IPv6 160
Default Routes in IPv6 160
Verifying and Troubleshooting IPv6 160
IPv6 Ping 162
IPv6 Traceroute 162
CHAPTER 17 OSPFv3 163
IPv6 and OSPFv3 163
Enabling OSPF for IPv6 on an Interface 163
Enabling an OSPF for IPv6 Area Range 164
Enabling an IPv4 Router ID for OSPFv3 165
Forcing an SPF Calculation 165
Verifying and Troubleshooting IPv6 and OSPFv3 165
Configuration Example: OSPFv3 166
R3 Router 166
R2 Router 167
R1 Router 168
R4 Router 169
CHAPTER 18 EIGRP for IPv6 171
IPv6 and EIGRP 171
Enabling EIGRP for IPv6 on an Interface 171
Configuring the Percentage of Link Bandwidth Used by EIGRP 172
Configuring Summary Addresses 172
Configuring EIGRP Route Authentication 172
Configuring EIGRP Timers 172
Logging EIGRP Neighbor Adjacency Changes 173
Adjusting the EIGRP for IPv6 Metric Weights 173
Verifying and Troubleshooting EIGRP for IPv6 173
Configuration Example: EIGRP for IPv6 174
R3 Router 174
R2 Router 175
R1 Router 176
Part VIII Network Administration and Troubleshooting
CHAPTER 19 Backing Up and Restoring Cisco IOS Software and Confi gurations 177
Boot System Commands 177
The Cisco IOS File System 178
Viewing the Cisco IOS File System 178
Commonly Used URL Prefixes for Cisco Network Devices 178
Deciphering IOS Image Filenames 179
Backing Up Configurations to a TFTP Server 180
Restoring Configurations from a TFTP Server 180
Backing Up the Cisco IOS Software to a TFTP Server 181
Restoring/Upgrading the Cisco IOS Software from a TFTP Server 181
Restoring the Cisco IOS Software from ROM Monitor Mode Using Xmodem 182
Restoring the Cisco IOS Software Using the ROM Monitor Environmental Variables and tftpdnld Command 184
CHAPTER 20 Password-Recovery Procedures and the Confi guration Register 187
The Configuration Register 187
A Visual Representation 187
What the Bits Mean 187
The Boot Field 188
Console Terminal Baud Rate Settings 188
Changing the Console Line Speed: CLI 189
Changing the Console Line Speed: ROM Monitor Mode 189
Password-Recovery Procedures for Cisco Routers 190
Password Recovery for 2960 Series Switches 191
CHAPTER 21 Cisco Discovery Protocol (CDP) 193
Cisco Discovery Protocol 193
CHAPTER 22 Remote Connectivity Using Telnet or SSH 195
Configuring a Device to Accept a Remote Telnet Connection 195
Using Telnet to Remotely Connect to Other Devices 196
Verifying Telnet 197
Configuring the Secure Shell Protocol (SSH) 197
Verifying SSH 198
CHAPTER 23 Verifying End-to-End Connectivity 199
ICMP Redirect Messages 199
The ping Command 199
Examples of Using the ping and the Extended ping Commands 200
The traceroute Command 201
CHAPTER 24 Confi guring Network Management Protocols 203
Configuring SNMP 203
Configuring Syslog 204
Syslog Message Format 204
Syslog Severity Levels 205
Syslog Message Example 205
Configuring NetFlow 206
Verifying NetFlow 206
CHAPTER 25 Basic Troubleshooting 207
Viewing the Routing Table 207
Clearing the Routing Table 208
Determining the Gateway of Last Resort 208
Determining the Last Routing Update 208
OSI Layer 3 Testing 208
OSI Layer 7 Testing 209
Interpreting the show interface Command 209
Clearing Interface Counters 209
Using CDP to Troubleshoot 209
The traceroute Command 209
The show controllers Command 210
debug Commands 210
Using Time Stamps 210
Operating System IP Verification Commands 211
The ip http server Command 211
The netstat Command 211
The arp Command 211
CHAPTER 26 Cisco IOS Licensing 213
Cisco Licensing Earlier Than IOS 15.0 213
Cisco Licensing for the ISR G2 Platforms: IOS 15.0 and Later 215
Verifying Licenses 215
Cisco License Manager 215
Installing a Permanent License 216
Installing an Evaluation License 217
Backing Up a License 217
Uninstalling a License 217
Part IX Managing IP Services
CHAPTER 27 Network Address Translation 219
Configuring Dynamic NAT: One Private to One Public Address Translation 219
Configuring PAT: Many Private to One Public Address Translation 221
Configuring Static NAT: One Private to One Permanent Public Address Translation 222
Verifying NAT and PAT Configurations 223
Troubleshooting NAT and PAT Configurations 224
Configuration Example: PAT 224
ISP Router 224
Company Router 225
CHAPTER 28 Dynamic Host Confi guration Protocol (DHCP) 227
Configuring a DHCP Server on an IOS Router 227
Verifying and Troubleshooting DHCP Configuration 228
Configuring a DHCP Helper Address 228
DHCP Client on a Cisco IOS Software Ethernet Interface 229
Configuration Example: DHCP 229
Edmonton Router 229
Gibbons Router 231
Part X WANs
CHAPTER 29 Confi guring Serial Encapsulation: HDLC and PPP 233
Configuring HDLC Encapsulation on a Serial Line 233
Configuring Point-to-Point Protocol (PPP) on a Serial Line (Mandatory Commands) 233
Configuring PPP on a Serial Line (Optional Commands): Compression 234
Configuring PPP on a Serial Line (Optional Commands): Link Quality 234
Configuring PPP on a Serial Line (Optional Commands): Multilink 234
Configuring PPP on a Serial Line (Optional Commands): Authentication 234
Verifying and Troubleshooting a Serial Link/PPP Encapsulation 235
Configuration Example: PPP with CHAP Authentication 236
Boston Router 236
Buffalo Router 237
CHAPTER 30 Establishing WAN Connectivity Using Frame Relay 239
Configuring Frame Relay 239
Setting the Frame Relay Encapsulation Type 239
Setting the Frame Relay Encapsulation LMI Type 239
Setting the Frame Relay DLCI Number 240
Configuring a Frame Relay map Statement 240
Configuring a Description of the Interface (Optional) 240
Configuring Frame Relay Using Subinterfaces 240
Verifying Frame Relay 241
Troubleshooting Frame Relay 242
Configuration Example: Point-to-Point Frame Relay Using Subinterfaces and OSPF 242
Houston Router 242
Austin Router 244
Galveston Router 244
Laredo Router 245
Configuration Example: Point-to-Multipoint Frame Relay Using Subinterfaces and EIGRP 246
R1 Router 246
R2 Router 247
R3 Router 248
CHAPTER 31 Confi guring Generic Routing Encapsulation (GRE) Tunnels 249
Configuring a GRE Tunnel 249
Branch Router 249
HQ Router 250
Verifying a GRE Tunnel 250
CHAPTER 32 Confi guring Point-to-Point Protocol over Ethernet (PPPoE) 251
Configuring a DSL Connection using PPPoE 251
Step 1: Configure PPPoE (External Modem) 252
Step 2: Configure the Dialer Interface 253
Step 3: Define Interesting Traffic and Specify Default Routing 253
Step 4: Configure NAT Using an ACL 254
Step 5: Configure NAT Using a Route Map 254
Step 6: Configure DHCP Service 255
Step 7: Apply NAT Programming 255
Step 8: Verify a PPPoE Connection 255
Part XI Network Security
CHAPTER 33 Managing Traffi c Using Access Control Lists (ACL) 257
Access List Numbers 257
Using Wildcard Masks 258
ACL Keywords 258
Creating Standard ACLs 259
Applying Standard ACLs to an Interface 260
Verifying ACLs 260
Removing ACLs 260
Creating Extended ACLs 261
Applying Extended ACLs to an Interface 262
The established Keyword (Optional) 262
Creating Named ACLs 262
Using Sequence Numbers in Named ACLs 263
Removing Specific Lines in Named ACLs Using Sequence Numbers 264
Sequence Number Tips 264
Including Comments About Entries in ACLs 265
Restricting Virtual Terminal Access 265
Tips for Configuring ACLs 266
ACLs and IPv6 266
Configuration Examples: ACLs 267
Part XII Appendixes
APPENDIX A Binary/Hex/Decimal Conversion Chart 271
APPENDIX B Create Your Own Journal Here 279
9781587204302, TOC, 5/28/2013