Transcript
© 2007 Cisco Systems, Inc. All rights reserved. Cisco PublicITE PC v4.0Chapter 1 1
Troubleshooting Your Network
Networking for Home and Small Businesses – Chapter 9
ITE PC v4.0Chapter 1 2© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public
Objectives Describe the troubleshooting process.
Describe the utilities used to verify TCP/IP connectivity.
Identify and describe common hardware and connection issues in wired and wireless networks.
Utilize the troubleshooting process to document problems and interact with a help desk.
ITE PC v4.0Chapter 1 3© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public
The Troubleshooting Process Identify and describe troubleshooting process
ITE PC v4.0Chapter 1 4© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public
The Troubleshooting Process Gathering Information
ITE PC v4.0Chapter 1 5© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public
The Troubleshooting Process Describe approaches to troubleshooting
ITE PC v4.0Chapter 1 6© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public
Utilities Used to Verify TCP/IP Connectivity Detecting Physical problems
ITE PC v4.0Chapter 1 7© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public
Utilities Used to Verify TCP/IP Connectivity Identify and describe software utilities for
troubleshooting connectivity.
ITE PC v4.0Chapter 1 8© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public
Utilities Used to Verify TCP/IP Connectivity Describe and use Ipconfig
ITE PC v4.0Chapter 1 9© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public
Utilities Used to Verify TCP/IP Connectivity Describe and use ping
ITE PC v4.0Chapter 1 10© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public
Utilities Used to Verify TCP/IP Connectivity Describe and use tracert
ITE PC v4.0Chapter 1 11© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public
Utilities Used to Verify TCP/IP Connectivity Describe and use netstat
ITE PC v4.0Chapter 1 12© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public
Utilities Used to Verify TCP/IP Connectivity Describe and use nslookup
ITE PC v4.0Chapter 1 13© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public
Hardware and Connection Issues in Wired & Wireless Networks Isolating connectivity issues
ITE PC v4.0Chapter 1 14© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public
Hardware and Connection Issues in Wired & Wireless Networks Describe the purpose of LED indicators and their
meaning.
ITE PC v4.0Chapter 1 15© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public
Hardware and Connection Issues in Wired & Wireless Networks Describe connection issues with wired networks.
ITE PC v4.0Chapter 1 16© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public
Hardware and Connection Issues in Wired & Wireless Networks Identify and describe radio issues with a wireless
network.
ITE PC v4.0Chapter 1 17© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public
Hardware and Connection Issues in Wired & Wireless Networks Identify and describe association and authentication
issues within a wireless network.
ITE PC v4.0Chapter 1 18© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public
Hardware and Connection Issues in Wired & Wireless Networks DHCP Issues.
ITE PC v4.0Chapter 1 19© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public
Hardware and Connection Issues in Wired & Wireless Networks Troubleshooting Integrated Router to ISP connections.
ITE PC v4.0Chapter 1 20© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public
Utilizing the Troubleshooting Process for Documentation and Help Desk Interactions Describe the importance of documentation
ITE PC v4.0Chapter 1 21© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public
Utilizing the Troubleshooting Process for Documentation and Help Desk Interactions Using outside sources of help
ITE PC v4.0Chapter 1 22© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public
Utilizing the Troubleshooting Process for Documentation and Help Desk Interactions Using the Helpdesk
ITE PC v4.0Chapter 1 23© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public
Summary Effective troubleshooting combines instinct, experience, and
structured techniques to identify, locate, and correct network or computer problems.
Documentation is essential in effective troubleshooting, and should contain baseline information about the network.
A large proportion of networking problems relate to physical components.
Many networking problems can be identified with software utilities such as ping, tracert, and netstat.
In a network containing both wired and wireless connections, it is important to isolate the problem to either the wired or wireless network.
ITE PC v4.0Chapter 1 24© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public
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