Chapter 6 Configuring a Router/ Learning About Other Devices/ Managing Cisco IOS Software
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Transcript of Chapter 6 Configuring a Router/ Learning About Other Devices/ Managing Cisco IOS Software
![Page 1: Chapter 6 Configuring a Router/ Learning About Other Devices/ Managing Cisco IOS Software](https://reader035.fdocuments.in/reader035/viewer/2022062301/56813769550346895d9efe29/html5/thumbnails/1.jpg)
1© 2004, Cisco Systems, Inc. All rights reserved.
Chapter 6
Configuring a Router/ Learning About Other Devices/ Managing Cisco IOS Software
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222© 2004, Cisco Systems, Inc. All rights reserved.
Objectives
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333© 2004, Cisco Systems, Inc. All rights reserved.
Command-Line InterfaceCommand Modes
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444© 2004, Cisco Systems, Inc. All rights reserved.
Configuring a Router Name
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555© 2004, Cisco Systems, Inc. All rights reserved.
Configuring Router Passwords
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666© 2004, Cisco Systems, Inc. All rights reserved.
Examining the show Commands
• Many show commands can be used to examine the contents of files in the router and for troubleshooting.
• In both privileged EXEC and user EXEC modes, the command show ? provides a list of available show commands.
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777© 2004, Cisco Systems, Inc. All rights reserved.
Interface Configuration Commands
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888© 2004, Cisco Systems, Inc. All rights reserved.
Configuring an Ethernet Interface
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999© 2004, Cisco Systems, Inc. All rights reserved.
Importance of Configuration Standards
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101010© 2004, Cisco Systems, Inc. All rights reserved.
Configuring Interface Descriptions
An interface description should identify important information such as a router, a circuit number, or a specific network segment.
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111111© 2004, Cisco Systems, Inc. All rights reserved.
Login Banners
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121212© 2004, Cisco Systems, Inc. All rights reserved.
Configuring Message-of-the-Day (MOTD)
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131313© 2004, Cisco Systems, Inc. All rights reserved.
Host Name Resolution
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141414© 2004, Cisco Systems, Inc. All rights reserved.
Host Table Configuration
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151515© 2004, Cisco Systems, Inc. All rights reserved.
Configuration Backup and Documentation
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161616© 2004, Cisco Systems, Inc. All rights reserved.
The copy running-config tftp Command
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171717© 2004, Cisco Systems, Inc. All rights reserved.
The copy tftp running-config Command
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181818© 2004, Cisco Systems, Inc. All rights reserved.
Summary
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19© 2004, Cisco Systems, Inc. All rights reserved.
Learning About Other Devices
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202020© 2004, Cisco Systems, Inc. All rights reserved.
Objectives
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212121© 2004, Cisco Systems, Inc. All rights reserved.
Cisco Discovery Protocol (CDP)
CDP is media and protocol independent, and runs on all Cisco equipment over the Subnetwork Access Protocol (SNAP).
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222222© 2004, Cisco Systems, Inc. All rights reserved.
Showing CDP Neighbor Entries
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232323© 2004, Cisco Systems, Inc. All rights reserved.
Implementation, Monitoring, and Maintenance of CDP
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242424© 2004, Cisco Systems, Inc. All rights reserved.
The show cdp interface Command
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252525© 2004, Cisco Systems, Inc. All rights reserved.
The show cdp neighbors Command
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262626© 2004, Cisco Systems, Inc. All rights reserved.
Creating a Network Map
• The show cdp neighbors [type number] [detail] command can be used to obtain the following:
Device ID — Address
Port ID — Capabilities
Version — Platform
IP network prefix
VTP management domain name (CDPv2 only)
Native VLAN (CDPv2 only)
Full/Half duplex (CDPv2)
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272727© 2004, Cisco Systems, Inc. All rights reserved.
Disabling CDP
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282828© 2004, Cisco Systems, Inc. All rights reserved.
Troubleshooting CDP
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292929© 2004, Cisco Systems, Inc. All rights reserved.
The show cdp traffic Command
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303030© 2004, Cisco Systems, Inc. All rights reserved.
Telnet
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313131© 2004, Cisco Systems, Inc. All rights reserved.
Telnet Operations
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323232© 2004, Cisco Systems, Inc. All rights reserved.
Establishing Telnet Connections
• To initiate a Telnet session any of the following alternatives can be used:
Denver>connect parisDenver>paris Denver>131.108.100.152Denver>telnet paris
• A hostname table or access to DNS for Telnet must be present for a name to work. Otherwise, the IP address of the remote router must be entered.
• Telnet can be used to determine if a remote router can be accessed.
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333333© 2004, Cisco Systems, Inc. All rights reserved.
Telnet Operations
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343434© 2004, Cisco Systems, Inc. All rights reserved.
Advanced Telnet Operation
Multiple Telnet sessions can be used and suspended with the Ctrl+Shift+6 then x sequence.
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353535© 2004, Cisco Systems, Inc. All rights reserved.
Testing with the ping Command
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363636© 2004, Cisco Systems, Inc. All rights reserved.
Testing with the traceroute Command
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373737© 2004, Cisco Systems, Inc. All rights reserved.
Troubleshooting IP Addressing Issues
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383838© 2004, Cisco Systems, Inc. All rights reserved.
Summary
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39© 2004, Cisco Systems, Inc. All rights reserved.
Managing Cisco IOS Software
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404040© 2004, Cisco Systems, Inc. All rights reserved.
Objectives
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414141© 2004, Cisco Systems, Inc. All rights reserved.
Router Startup Sequence
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424242© 2004, Cisco Systems, Inc. All rights reserved.
Locating IOS Software
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434343© 2004, Cisco Systems, Inc. All rights reserved.
Using the boot system Command
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444444© 2004, Cisco Systems, Inc. All rights reserved.
Configuration Register Values
The order in which the router looks for system bootstrap information depends on the boot field setting in the configuration register. The default configuration register setting can be changed with the global configuration mode command config-register. Use a hexadecimal number as the argument for this command.
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454545© 2004, Cisco Systems, Inc. All rights reserved.
Identifying Boot Image Source
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464646© 2004, Cisco Systems, Inc. All rights reserved.
Software Components in Memory
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474747© 2004, Cisco Systems, Inc. All rights reserved.
Fields in the IOS Name
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484848© 2004, Cisco Systems, Inc. All rights reserved.
Managing Configuration Files Using TFTP
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494949© 2004, Cisco Systems, Inc. All rights reserved.
Managing Configuration Files Using Copy and Paste
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505050© 2004, Cisco Systems, Inc. All rights reserved.
Managing IOS Images Using TFTP
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515151© 2004, Cisco Systems, Inc. All rights reserved.
The confreg Command
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525252© 2004, Cisco Systems, Inc. All rights reserved.
Managing IOS Using XModem
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535353© 2004, Cisco Systems, Inc. All rights reserved.
The tftpdnld Command
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545454© 2004, Cisco Systems, Inc. All rights reserved.
File System Verification
• There are several commands that can be used to verify the router file system.
show version
show flash
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555555© 2004, Cisco Systems, Inc. All rights reserved.
The show version Command
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565656© 2004, Cisco Systems, Inc. All rights reserved.
The show flash Command
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575757© 2004, Cisco Systems, Inc. All rights reserved.
Summary
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585858© 2004, Cisco Systems, Inc. All rights reserved.
Question/Answer