CCNA command quick reference

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Title:

Personal Author:

Empson, Scott

Series:

Cisco networking academy program series

Publication Information:

Indianapolis, IN : Cisco Press, 2005

ISBN:

9781587131592

Subject Term:

Computer networks -- Handbooks, manuals, etc.

Internetworking (Telecommunication) -- Examinations -- Study guides

Available:*

Library	Item Barcode	Call Number	Material Type	Item Category 1	Status
Searching... PSZ JB	30000010116297	TK5105.5 E46 2005	Open Access Book	Book	Searching... Unknown

Helps increase your familiarity with Cisco IOS Software when working on routers and switches or in simulated networks. This work summarizes commands with keywords, command arguments, and associated prompts. It includes many configuration examples, visually diagramming a network with related configuration and output.

Author Notes

Scott Empson, CCDA, CCNP, CCAI, Network+, is an instructor in the telecommunications department at the Northern Alberta Institute of Technology in Edmonton, Alberta, Canada. He teaches Cisco routing, switching, and network design courses to students at the post-secondary level. Scott holds three undergraduate degrees: a bachelor of arts, with a major in English; a bachelor of education, with a major in English/language arts; and a bachelor of applied information systems technology, with a major in network management. After this project he plans to return to school to complete his master's degree.

Introduction	p. xviii
Part I CCNA 1	p. 1
Part II CCNA 2	p. 3
Chapter 1 WANs and Routers	p. 5
Connecting a Rollover Cable to Your Router or Switch	p. 5
Terminal Settings	p. 5
LAN Connections	p. 6
Serial Cable Types	p. 7
Which Cable to Use?	p. 8
OS IP Verification Commands	p. 10
Chapter 2 Introduction to Routers	p. 11
Shortcuts for Entering Commands	p. 11
Using the [characters not reproducible] Key to Complete Commands	p. 11
Using the Question Mark for Help	p. 11
enable Command	p. 12
exit Command	p. 12
disable Command	p. 13
logout Command	p. 13
Setup Mode	p. 13
Keyboard Help	p. 13
History Commands	p. 14
show Commands	p. 15
Chapter 3 Configuring a Router	p. 17
Router Modes	p. 17
Global Configuration Mode	p. 18
Configuring a Router Name	p. 18
Configuring Passwords	p. 18
Password Encryption	p. 19
show Commands	p. 19
Interface Names	p. 20
Moving Between Interfaces	p. 21
Configuring a Serial Interface	p. 21
Configuring an Ethernet/Fast Ethernet Interface	p. 21
Creating a MOTD Banner	p. 22
Setting the Clock Time Zone	p. 22
Assigning a Local Host Name to an IP Address	p. 22
no ip domain-lookup Command	p. 23
logging synchronous Command	p. 23
exec-timeout Command	p. 23
Saving Configurations	p. 24
Erasing Configurations	p. 24
Configuration Example: Basic Router Configuration	p. 24
Chapter 4 Learning About Other Devices	p. 27
Cisco Discovery Protocol	p. 27
Telnet	p. 28
ping	p. 30
traceroute	p. 32
Chapter 5 Managing Cisco IOS Software	p. 33
Boot System Commands	p. 33
Configuration Register	p. 33
Cisco IOS Software Prerelease 12.0 Commands Versus Cisco IOS Software 12.x Commands	p. 34
Backing Up Configurations	p. 34
Restoring Configurations	p. 35
Backing Up IOS to a TFTP Server	p. 35
Restoring/Upgrading IOS from a TFTP Server	p. 36
Restoring IOS from ROMmon Mode Using Xmodem	p. 37
Restoring the IOS Using the ROMmon Environmental Variables and tftpdnld Command	p. 40
Password Recovery Procedures	p. 41
Chapter 6 Routing and Routing Protocols	p. 43
Static Routing	p. 43
Default Routing	p. 44
Verifying Static Routes	p. 44
Configuration Example: Static Routes	p. 44
Chapter 7 Distance Vector Routing Protocols	p. 47
IP Classless	p. 47
RIP Routing: Mandatory Commands	p. 47
RIP Routing: Optional Commands	p. 48
RIP Version 2	p. 49
Troubleshooting RIP Issues	p. 49
IGRP Routing: Mandatory Commands	p. 49
IGRP Routing: Optional Commands	p. 50
Troubleshooting IGRP Issues	p. 50
Dynamic Routing Protocol Options	p. 51
Troubleshooting Dynamic Routing Protocol Issues	p. 51
Verifying Routing	p. 51
Configuration Example: Dynamic Routing	p. 52
Chapter 8 TCP/IP Suite Error and Control Messages	p. 55
ICMP Redirect Messages	p. 55
ping Command	p. 55
Chapter 9 Basic Router Troubleshooting	p. 57
Viewing the Routing Table	p. 57
Determining the Gateway of Last Resort	p. 58
Determining the Last Routing Update	p. 58
OSI Layer 3 Testing	p. 58
OSI Layer 7 Testing	p. 59
Using CDP to Troubleshoot	p. 59
traceroute Command	p. 60
show controllers Command	p. 60
debug Commands	p. 60
Chapter 10 Intermediate TCP/IP	p. 61
ip http server Command	p. 61
netstat Command	p. 61
Chapter 11 Access Control Lists (ACLs)	p. 63
Access List Numbers	p. 63
Wildcard Masks	p. 63
ACL Keywords	p. 64
Creating Standard ACLs	p. 64
Applying a Standard ACL to an Interface	p. 66
Verifying ACLs	p. 66
Removing An ACL	p. 66
Creating Extended ACLs	p. 67
Applying an Extended ACL to an Interface	p. 68
Creating Named ACLs	p. 68
Restricting Virtual Terminal Access	p. 69
Configuration Example: Access Control Lists	p. 70
Configuration Example: CCNA 2	p. 72
Part III CCNA 3	p. 81
Chapter 1 Introduction to Classless Routing	p. 83
Variable-Length Subnet Masking (VLSM)	p. 83
Subnet Zero	p. 83
RIP Version 2: Mandatory Commands	p. 83
RIP Version 2: Optional Commands	p. 84
Configuration Example: RIP-2 Routing	p. 84
Chapter 2 Single-Area OSPF	p. 87
OSPF Routing: Mandatory Commands	p. 87
Using Wildcard Masks with OSPF Areas	p. 88
OSPF Routing: Optional Commands	p. 88
Loopback Interfaces	p. 88
OSPF DR/BDR Election	p. 88
Modifying OSPF Cost Metrics	p. 89
OSPF Authentication: Simple	p. 89
OSPF Authentication Using MD5 Encryption	p. 89
OSPF Timers	p. 90
Propagating a Default Route	p. 90
Verifying OSPF Configuration	p. 90
Troubleshooting OSPF	p. 91
Configuration Example: Single-Area OSPF	p. 92
Chapter 3 EIGRP	p. 97
Configuring EIGRP	p. 97
EIGRP Auto Summarization	p. 98
Verifying EIGRP	p. 98
Troubleshooting EIGRP	p. 99
Configuration Example: EIGRP	p. 99
Chapter 4 Switching Concepts	p. 103
Chapter 5 Switches	p. 105
Chapter 6 Switch Configuration	p. 107
Help Commands	p. 107
Command Modes	p. 107
Verifying Commands	p. 108
Resetting Switch Configuration	p. 108
Setting Host Names	p. 109
Setting Passwords: 1900 Series Switches	p. 109
Setting Passwords: 2900/2950 Series Switches	p. 110
Setting IP Address and Default Gateway	p. 110
Setting Interface Descriptions	p. 111
Setting Duplex Settings: 1900 or 2900/2950 Series Switches	p. 112
Setting Speed Settings: 2900/2950 Series Switches	p. 112
Setting Web-Based Interface for Configuration: 1900 and 2900/2950 Series Switches	p. 112
Managing the MAC Address Table: 1900 and 2900/2950 Series Switches	p. 113
Configuring Static MAC Addresses	p. 113
Port Security: 1900 Series Switches	p. 113
Verifying Port Security	p. 114
Upgrading Catalyst 1900 Firmware with a TFTP Server	p. 115
Copying IOS to TFTP Server	p. 115
Restoring/Upgrading IOS/Startup-Config from TFTP Server	p. 116
Password Recovery for 1900 Series Switches	p. 116
Password Recovery for 2900/2950 Series Switches	p. 118
Firmware Upgrade of Catalyst 2950 Series Switches	p. 119
Configuration Example: 2900 Series Switch	p. 120
Chapter 7 Spanning Tree Protocol	p. 123
Spanning-Tree Verification	p. 123
Change Spanning-Tree Priority of a Switch	p. 123
Changing the Stage of Spanning Tree on an Interface	p. 124
Chapter 8 Virtual LANs	p. 125
Displaying VLAN Information	p. 125
Creating Static VLANs	p. 126
Assigning Ports to VLANs	p. 127
Assigning Ports Using the range Command (2950 Switch Only)	p. 128
Saving VLAN Configurations	p. 128
Erasing VLAN Configurations	p. 129
Troubleshooting VLANs	p. 130
Configuration Example: 2900 Switch Configuration	p. 131
Chapter 9 VLAN Trunking Protocol	p. 135
Configuring ISL Trunks	p. 135
Configuring Dot1Q Trunks	p. 136
Verifying Trunking	p. 136
VTP Configuration	p. 137
Confirming VTP Configuration	p. 138
Inter-VLAN Communication: Router-on-a-Stick	p. 139
Router-on-a-Stick Tips	p. 139
Configuration Example: VTP and Inter-VLAN Routing	p. 140
Part IV CCNA 4	p. 153
Chapter 1 Scaling IP Technologies	p. 155
Configuring Dynamic NAT: One Private to One Public Address Translation	p. 155
Configuring PAT: Many Private to One Public Address Translation	p. 157
Configuring Static NAT: One Private to One Permanent Public Address Translation	p. 159
Verifying NAT and PAT Configuration	p. 160
Troubleshooting NAT and PAT Configuration	p. 160
Configuring DHCP	p. 160
Verifying and Troubleshooting DHCP Configuration	p. 161
Configuring a DHCP Helper Address	p. 161
Configuration Example: Port Address Translation	p. 162
Chapter 2 WAN Technologies	p. 165
Chapter 3 PPP	p. 167
Configuring HDLC Encapsulation on a Serial Line	p. 167
Configuring PPP on a Serial Line (Mandatory Commands)	p. 167
Configuring PPP on a Serial Line (Optional Commands): Compression	p. 168
Configuring PPP on a Serial Line (Optional Commands): Link Quality	p. 168
Configuring PPP on a Serial Line (Optional Commands): Multilink	p. 168
Configuring PPP on a Serial Line (Optional Commands): Authentication	p. 168
Verifying or Troubleshooting a Serial Link/PPP Encapsulation	p. 170
Configuration Example: PPP	p. 170
Chapter 4 ISDN and DDR	p. 173
Configuring ISDN BRI: Setting the Switch Type	p. 173
Configuring ISDN BRI: Setting SPIDs	p. 174
Configuring ISDN PRI	p. 174
Verifying ISDN Configuration	p. 175
Troubleshooting ISDN	p. 175
Configuring Legacy DDR	p. 176
Configuring Dialer Profiles with DDR	p. 177
Configuration Example: ISDN and DDR with No Dialer Profiles	p. 180
Chapter 5 Frame Relay	p. 185
Configuring Frame Relay: Setting the Frame Relay Encapsulation Type	p. 185
Configuring Frame Relay: Setting the Frame Relay Encapsulation LMI Type	p. 186
Configuring Frame Relay: Setting the Frame Relay DLCI Number	p. 186
Configuring a Frame Relay Map	p. 186
Configuring a Description of the Interface (Optional)	p. 187
Configuring Frame Relay Using Subinterfaces	p. 187
Verifying Frame Relay	p. 188
Troubleshooting Frame Relay	p. 188
Configuration Example: Frame Relay	p. 189
Chapter 6 Introduction to Network Administration	p. 195
Configuring SNMP	p. 195
Configuring Syslog	p. 195
Part V Appendixes	p. 197
Appendix A Subnetting	p. 199
Class A-E Addresses	p. 199
Converting Between Decimal Numbers and Binary	p. 200
Subnetting a Class C Network Using Binary	p. 200
Subnetting a Class B Network Using Binary	p. 204
The Enhanced Bob Maneuver for Subnetting (or How to Subnet Anything in Under a Minute)	p. 208
Appendix B VLSM	p. 211
IP Subnet Zero	p. 211
VLSM Example	p. 212
Step 1 Determine How Many H Bits Will Be Needed to Satisfy the Largest Network	p. 213
Step 2 Pick a Subnet for the Largest Network to Use	p. 213
Step 3 Pick the Next Largest Network to Work With	p. 214
Step 4 Pick the Third Largest Network to Work With	p. 215
Step 5 Determine Network Numbers for Serial Links	p. 217

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Summary

Summary

Author Notes

Table of Contents