Ccna Portable Command Guide

by Empson, Scott

• ISBN13: 9781587201585
• ISBN10: 1587201585
• Format: Paperback
• Copyright: 2006-01-01
• Publisher: Cisco Press

Summary

All the CCNA-Level commands in one compact, portable resource.

Author Biography

Scott Empson is an instructor in the telecommunications department at the Northern Alberta Institute of Technology in Edmonton, Alberta, Canada

Table of Contents

Introduction	xx
Part I TCP/IP	1	(34)
How to Subnet	3	(18)
Class A--E Addresses	3	(1)
Converting Between Decimal Numbers and Binary	4	(1)
Subnetting a Class C Network Using Binary	4	(4)
Subnetting a Class B Network Using Binary	8	(4)
Binary ANDing	12	(4)
Question 1	12	(1)
Answer	12	(1)
Question 2	13	(1)
Answer	13	(1)
So Why AND?	14	(1)
Question 3	14	(1)
Answer	14	(1)
Shortcuts in Binary ANDing	15	(1)
Question 4	15	(1)
Answer	15	(1)
Proof	15	(1)
Question 5	16	(1)
Answer	16	(1)
Question 6	16	(1)
Answer	16	(1)
The Enhanced Bob Maneuver for Subnetting	16	(5)
VLSM	21	(8)
IP Subnet Zero	21	(1)
VLSM Example	22	(7)
Step 1 Determine How Many H Bits Will Be Needed to Satisfy the Largest Network	23	(1)
Step 2 Pick a Subnet for the Largest Network to Use	23	(1)
Step 3 Pick the Next Largest Network to Work With	24	(1)
Step 4 Pick the Third Largest Network to Work With	25	(2)
Step 5 Determine Network Numbers for Serial Links	27	(2)
Route Summarization	29	(6)
Example for Understanding Route Summarization	29	(5)
Step 1: Summarize Winnipeg's Routes	30	(1)
Step 2: Summarize Calgary's Routes	31	(1)
Step 3: Summarize Edmonton's Routes	31	(1)
Step 4: Summarize Vancouver's Routes	32	(2)
Route Summarization and Route Flapping	34	(1)
Requirements for Route Summarization	34	(1)
Part II Introduction to Cisco Devices	35	(14)
Cables and Connections	37	(6)
Connecting a Rollover Cable to Your Router or Switch	37	(1)
Terminal Settings	37	(1)
LAN Connections	38	(1)
Serial Cable Types	39	(1)
Which Cable to Use?	40	(2)
568A Versus 568B Cables	42	(1)
The Command-Line Interface	43	(6)
Shortcuts for Entering Commands	43	(1)
Using the Tab Key to Complete Commands	43	(1)
Using the Question Mark for Help	43	(1)
enable Command	44	(1)
exit Command	44	(1)
disable Command	45	(1)
logout Command	45	(1)
Setup Mode	45	(1)
Keyboard Help	45	(1)
History Commands	46	(1)
show Commands	47	(2)
Part III Configuring a Router	49	(16)
Configuring a Single Cisco Router	51	(14)
Router Modes	51	(1)
Global Configuration Mode	52	(1)
Configuring a Router Name	52	(1)
Configuring Passwords	52	(1)
Password Encryption	53	(1)
show Commands	53	(1)
Interface Names	54	(3)
Moving Between Interfaces	57	(1)
Configuring a Serial Interface	57	(1)
Configuring an Ethernet/Fast Ethernet Interface	57	(1)
Creating an MOTD Banner	58	(1)
Setting the Clock Time Zone	58	(1)
Assigning a Local Host Name to an IP Address	58	(1)
no ip domain-lookup Command	59	(1)
logging synchronous Command	59	(1)
exec-timeout Command	60	(1)
Saving Configurations	60	(1)
Erasing Configurations	60	(1)
Configuration Example: Basic Router Configuration	60	(5)
Part IV Routing	65	(32)
Static Routing	67	(6)
Static Routing	67	(2)
The permanent Keyword (Optional)	68	(1)
Static Routes and Administrative Distance (Optional)	68	(1)
Default Routing	69	(1)
Verifying Static Routes	69	(1)
Configuration Example: Static Routes	70	(3)
RIP	73	(6)
IP Classless	73	(1)
RIP Routing: Mandatory Commands	73	(1)
RIP Routing: Optional Commands	74	(1)
RIP Version 2	75	(1)
Troubleshooting RIP Issues	75	(1)
RIP Version 2: Mandatory Commands	76	(1)
RIP Version 2: Optional Commands	76	(1)
Configuration Example: RIP-2 Routing	76	(3)
IGRP	79	(2)
IGRP Routing: Mandatory Commands	79	(1)
IGRP Routing: Optional Commands	80	(1)
Troubleshooting IGRP Issues	80	(1)
EIGRP	81	(6)
Configuring EIGRP	81	(1)
EIGRP Auto Summarization	82	(1)
Verifying EIGRP	82	(1)
Troubleshooting EIGRP	83	(1)
Configuration Example: EIGRP	83	(4)
Single-Area OSPF	87	(10)
OSPF Routing: Mandatory Commands	87	(1)
Wildcard Masks	88	(1)
Using Wildcard Masks with OSPF Areas	88	(1)
OSPF Routing: Optional Commands	89	(1)
Loopback Interfaces	89	(1)
OSPF DR/BDR Election	89	(1)
Modifying OSPF Cost Metrics	89	(1)
OSPF Authentication: Simple	90	(1)
OSPF Authentication Using MD5 Encryption	90	(1)
OSPF Timers	91	(1)
Propagating a Default Route	91	(1)
Verifying OSPF Configuration	91	(1)
Troubleshooting OSPF	92	(1)
Configuration Example: Single-Area OSPF	93	(4)
Part V Switches	97	(44)
Configuring a Switch	99	(12)
Help Commands	99	(1)
Command Modes	99	(1)
Verifying Commands	100	(1)
Resetting Switch Configuration	100	(1)
Setting Host Names	101	(1)
Setting Passwords: 1900 Series Switches	101	(1)
Setting Passwords: 2900/2950 Series Switches	102	(1)
Setting IP Address and Default Gateway	102	(1)
Setting Interface Descriptions	103	(1)
Setting Duplex Settings: 1900 or 2900/2950 Series Switches	104	(1)
Setting Speed Settings: 2900/2950 Series Switches	104	(1)
Setting Web-Based Interface for Configuration: 1900 and 2900/2950 Series Switches	104	(1)
Managing the MAC Address Table: 1900 and 2900/2950 Series Switches	105	(1)
Configuring Static MAC Addresses	105	(1)
Port Security: 1900 Series Switches	105	(1)
Verifying Port Security	106	(1)
Configuration Example: 2900 Series Switch	107	(4)
Spanning Tree Protocol and EtherChannel	111	(4)
Spanning Tree Protocol	111	(2)
Spanning-Tree Verification	111	(1)
Change Spanning-Tree Priority of a Switch	112	(1)
Changing the Cost of Spanning Tree on an Interface	112	(1)
Changing the State of Spanning Tree on an Interface	112	(1)
Spanning Tree Portfast BPDU Guard Command	113	(1)
EtherChannel	113	(2)
EtherChannel Configuration	113	(1)
Verification of EtherChannel	114	(1)
EtherChannel Tips	114	(1)
VLANs	115	(10)
Displaying VLAN Information	115	(1)
Creating Static VLANs	116	(1)
Assigning Ports to VLANs	117	(1)
Assigning Ports Using the range Command (2950 Switch Only)	118	(1)
Saving VLAN Configurations	118	(1)
Erasing VLAN Configurations	119	(1)
Troubleshooting VLANs	120	(1)
Configuration Example: 2900 Switch Configuration	121	(4)
VTP and Inter-VLAN Communication	125	(16)
Configuring ISL Trunks	125	(1)
Configuring Dot1Q Trunks	126	(1)
Verifying Trunking	126	(1)
VTP Configuration	127	(1)
Confirming VTP Configuration	128	(1)
Inter-VLAN Communication: Router-on-a-Stick	129	(1)
Router-on-a-Stick Tips	129	(1)
Configuration Example: VTP and Inter-VLAN Routing	130	(11)
Part VI Network Administration and Troubleshooting	141	(44)
Backing Up and Restoring Cisco IOS Software and Configurations	143	(14)
Boot System Commands	143	(1)
Cisco IOS Software Prerelease 12.0 Commands Versus Cisco IOS Software 12.x Commands	144	(1)
Backing Up Configurations	144	(1)
Restoring Configurations	145	(1)
Backing Up IOS to a TFTP Server	145	(1)
Restoring/Upgrading IOS from a TFTP Server	146	(1)
Restoring IOS from ROMmon Mode Using Xmodem	147	(3)
Restoring the IOS Using the ROMmon Environmental Variables and tftpdnld Command	150	(1)
Upgrading Catalyst 1900 Firmware with a TFTP Server	150	(1)
Copying IOS to TFTP Server	151	(1)
Firmware Upgrade of Catalyst 2950 Series Switches	152	(1)
Configuration Example: 2900 Series Switch	153	(4)
Password Recovery Procedures and the Configuration Register	157	(10)
The Configuration Register	157	(3)
The Configuration Register: A Visual Representation	157	(1)
The Configuration Register---What the Bits Mean	158	(1)
The Boot Field	158	(1)
Console Terminal Baud Rate Settings	159	(1)
Changing the Console Line Speed---CLI	159	(1)
Changing the Console Line Speed---ROM Monitor Mode -- 1700/2600 Series	159	(1)
Password Recovery Procedures for Cisco Routers	160	(2)
Password Recovery for 1900 Series Switches	162	(2)
Password Recovery for 2900/2950 Series Switches	164	(3)
CDP	167	(2)
Cisco Discovery Protocol	167	(2)
Telnet	169	(4)
Telnet	169	(4)
ping and traceroute	173	(4)
ICMP Redirect Messages	173	(1)
ping Command	173	(1)
ping	174	(1)
traceroute	175	(2)
SNMP and Syslog	177	(2)
Configuring SNMP	177	(1)
Configuring Syslog	177	(2)
Basic Troubleshooting	179	(6)
Viewing the Routing Table	179	(1)
Determining the Gateway of Last Resort	180	(1)
Determining the Last Routing Update	180	(1)
OSI Layer 3 Testing	180	(1)
OSI Layer 7 Testing	181	(1)
Interpreting the show interface Command	181	(1)
Clearing Interface Counters	181	(1)
Using CDP to Troubleshoot	182	(1)
traceroute Command	182	(1)
show controllers Command	182	(1)
debug Commands	182	(1)
Using Timestamps	183	(1)
OS IP Verification Commands	183	(1)
ip http server Command	184	(1)
netstat Command	184	(1)
Part VII Managing IP Services	185	(18)
NAT	187	(10)
Configuring Dynamic NAT: One Private to One Public Address Translation	187	(2)
Configuring PAT: Many Private to One Public Address Translation	189	(2)
Configuring Static NAT: One Private to One Permanent Public Address Translation	191	(1)
Verifying NAT and PAT Configuration	192	(1)
Troubleshooting NAT and PAT Configuration	192	(1)
Configuration Example: Port Address Translation	192	(5)
DHCP	197	(6)
Configuring DHCP	197	(1)
Verifying and Troubleshooting DHCP Configuration	198	(1)
Configuring a DHCP Helper Address	198	(1)
Configuration Example: DHCP	198	(5)
Part VIII Wide-Area Networks	203	(30)
HDLC and PPP	205	(6)
Configuring HDLC Encapsulation on a Serial Line	205	(1)
Configuring PPP on a Serial Line (Mandatory Commands)	205	(1)
Configuring PPP on a Serial Line (Optional Commands): Compression	206	(1)
Configuring PPP on a Serial Line (Optional Commands): Link Quality	206	(1)
Configuring PPP on a Serial Line (Optional Commands): Multilink	206	(1)
Configuring PPP on a Serial Line (Optional Commands): Authentication	206	(2)
Verifying or Troubleshooting a Serial Link/PPP Encapsulation	208	(1)
Configuration Example: PPP	208	(3)
ISDN and DDR	211	(12)
Configuring ISDN BRI: Setting the Switch Type	211	(1)
Configuring ISDN BRI: Setting SPIDs	212	(1)
Configuring ISDN PRI	212	(1)
Verifying ISDN Configuration	213	(1)
Troubleshooting ISDN	213	(1)
Configuring Legacy DDR	214	(1)
Configuring Dialer Profiles with DDR	215	(3)
Configuration Example: ISDN and DDR with No Dialer Profiles	218	(5)
Frame Relay	223	(10)
Configuring Frame Relay: Setting the Frame Relay Encapsulation Type	223	(1)
Configuring Frame Relay: Setting the Frame Relay Encapsulation LMI Type	224	(1)
Configuring Frame Relay: Setting the Frame Relay DLCI Number	224	(1)
Configuring a Frame Relay Map	224	(1)
Configuring a Description of the Interface (Optional)	225	(1)
Configuring Frame Relay Using Subinterfaces	225	(1)
Verifying Frame Relay	226	(1)
Troubleshooting Frame Relay	226	(1)
Configuration Example: Frame Relay	227	(6)
Part IX Network Security	233	(14)
IP Access Control List Security	235	(12)
Access List Numbers	235	(1)
ACL Keywords	235	(1)
Creating Standard ACLs	236	(1)
Applying a Standard ACL to an Interface	237	(1)
Verifying ACLs	237	(1)
Removing an ACL	238	(1)
Creating Extended ACLs	238	(1)
The established Keyword	239	(1)
Creating Named ACLs	240	(1)
Using Sequence Numbers in Named ACLs	241	(1)
Removing Specific Lines in a Named ACL Using Sequence Numbers	242	(1)
Sequence Number Tips	242	(1)
Including Comments About Entries in ACLs	242	(1)
Applying an Extended ACL to an Interface	243	(1)
Restricting Virtual Terminal Access	243	(1)
Configuration Example: Access Control Lists	244	(3)
Part X Appendixes	247	(2)
Appendix A Complete Configuration Example	249	(16)
Appendix B Binary/Hex/Decimal Conversion Chart	265	(10)
Appendix C Create Your Own Journal Here	275