chapter 6 configuring a router/ learning about other devices/ managing cisco ios software
DESCRIPTION
Chapter 6 Configuring a Router/ Learning About Other Devices/ Managing Cisco IOS Software. Objectives. Command-Line Interface Command Modes. Configuring a Router Name. Configuring Router Passwords. Examining the show Commands. - PowerPoint PPT PresentationTRANSCRIPT
1© 2004, Cisco Systems, Inc. All rights reserved.
Chapter 6
Configuring a Router/ Learning About Other Devices/ Managing Cisco IOS Software
222© 2004, Cisco Systems, Inc. All rights reserved.
Objectives
333© 2004, Cisco Systems, Inc. All rights reserved.
Command-Line InterfaceCommand Modes
444© 2004, Cisco Systems, Inc. All rights reserved.
Configuring a Router Name
555© 2004, Cisco Systems, Inc. All rights reserved.
Configuring Router Passwords
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.
777© 2004, Cisco Systems, Inc. All rights reserved.
Interface Configuration Commands
888© 2004, Cisco Systems, Inc. All rights reserved.
Configuring an Ethernet Interface
999© 2004, Cisco Systems, Inc. All rights reserved.
Importance of Configuration Standards
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.
111111© 2004, Cisco Systems, Inc. All rights reserved.
Login Banners
121212© 2004, Cisco Systems, Inc. All rights reserved.
Configuring Message-of-the-Day (MOTD)
131313© 2004, Cisco Systems, Inc. All rights reserved.
Host Name Resolution
141414© 2004, Cisco Systems, Inc. All rights reserved.
Host Table Configuration
151515© 2004, Cisco Systems, Inc. All rights reserved.
Configuration Backup and Documentation
161616© 2004, Cisco Systems, Inc. All rights reserved.
The copy running-config tftp Command
171717© 2004, Cisco Systems, Inc. All rights reserved.
The copy tftp running-config Command
181818© 2004, Cisco Systems, Inc. All rights reserved.
Summary
19© 2004, Cisco Systems, Inc. All rights reserved.
Learning About Other Devices
202020© 2004, Cisco Systems, Inc. All rights reserved.
Objectives
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).
222222© 2004, Cisco Systems, Inc. All rights reserved.
Showing CDP Neighbor Entries
232323© 2004, Cisco Systems, Inc. All rights reserved.
Implementation, Monitoring, and Maintenance of CDP
242424© 2004, Cisco Systems, Inc. All rights reserved.
The show cdp interface Command
252525© 2004, Cisco Systems, Inc. All rights reserved.
The show cdp neighbors Command
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)
272727© 2004, Cisco Systems, Inc. All rights reserved.
Disabling CDP
282828© 2004, Cisco Systems, Inc. All rights reserved.
Troubleshooting CDP
292929© 2004, Cisco Systems, Inc. All rights reserved.
The show cdp traffic Command
303030© 2004, Cisco Systems, Inc. All rights reserved.
Telnet
313131© 2004, Cisco Systems, Inc. All rights reserved.
Telnet Operations
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.
333333© 2004, Cisco Systems, Inc. All rights reserved.
Telnet Operations
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.
353535© 2004, Cisco Systems, Inc. All rights reserved.
Testing with the ping Command
363636© 2004, Cisco Systems, Inc. All rights reserved.
Testing with the traceroute Command
373737© 2004, Cisco Systems, Inc. All rights reserved.
Troubleshooting IP Addressing Issues
383838© 2004, Cisco Systems, Inc. All rights reserved.
Summary
39© 2004, Cisco Systems, Inc. All rights reserved.
Managing Cisco IOS Software
404040© 2004, Cisco Systems, Inc. All rights reserved.
Objectives
414141© 2004, Cisco Systems, Inc. All rights reserved.
Router Startup Sequence
424242© 2004, Cisco Systems, Inc. All rights reserved.
Locating IOS Software
434343© 2004, Cisco Systems, Inc. All rights reserved.
Using the boot system Command
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.
454545© 2004, Cisco Systems, Inc. All rights reserved.
Identifying Boot Image Source
464646© 2004, Cisco Systems, Inc. All rights reserved.
Software Components in Memory
474747© 2004, Cisco Systems, Inc. All rights reserved.
Fields in the IOS Name
484848© 2004, Cisco Systems, Inc. All rights reserved.
Managing Configuration Files Using TFTP
494949© 2004, Cisco Systems, Inc. All rights reserved.
Managing Configuration Files Using Copy and Paste
505050© 2004, Cisco Systems, Inc. All rights reserved.
Managing IOS Images Using TFTP
515151© 2004, Cisco Systems, Inc. All rights reserved.
The confreg Command
525252© 2004, Cisco Systems, Inc. All rights reserved.
Managing IOS Using XModem
535353© 2004, Cisco Systems, Inc. All rights reserved.
The tftpdnld Command
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
555555© 2004, Cisco Systems, Inc. All rights reserved.
The show version Command
565656© 2004, Cisco Systems, Inc. All rights reserved.
The show flash Command
575757© 2004, Cisco Systems, Inc. All rights reserved.
Summary
585858© 2004, Cisco Systems, Inc. All rights reserved.
Question/Answer