© 2007 Cisco Systems, Inc. All rights reserved.Cisco Public ITE PC v4.0 Chapter 1 1 Troubleshooting Your Network Networking for Home and Small Businesses – Chapter 9

ITE PC v4.0 Chapter 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 v4.0 Chapter 1 3 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public The Troubleshooting Process  Identify and describe troubleshooting process

ITE PC v4.0 Chapter 1 4 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public The Troubleshooting Process  Gathering Information

ITE PC v4.0 Chapter 1 5 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public The Troubleshooting Process  Describe approaches to troubleshooting

ITE PC v4.0 Chapter 1 6 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Utilities Used to Verify TCP/IP Connectivity  Detecting Physical problems

ITE PC v4.0 Chapter 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 v4.0 Chapter 1 8 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Utilities Used to Verify TCP/IP Connectivity  Describe and use Ipconfig

ITE PC v4.0 Chapter 1 9 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Utilities Used to Verify TCP/IP Connectivity  Describe and use ping

ITE PC v4.0 Chapter 1 10 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Utilities Used to Verify TCP/IP Connectivity  Describe and use tracert

ITE PC v4.0 Chapter 1 11 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Utilities Used to Verify TCP/IP Connectivity  Describe and use netstat

ITE PC v4.0 Chapter 1 12 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Utilities Used to Verify TCP/IP Connectivity  Describe and use nslookup

ITE PC v4.0 Chapter 1 13 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Hardware and Connection Issues in Wired & Wireless Networks  Isolating connectivity issues

ITE PC v4.0 Chapter 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 v4.0 Chapter 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 v4.0 Chapter 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 v4.0 Chapter 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 v4.0 Chapter 1 18 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Hardware and Connection Issues in Wired & Wireless Networks  DHCP Issues.

ITE PC v4.0 Chapter 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 v4.0 Chapter 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 v4.0 Chapter 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 v4.0 Chapter 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 v4.0 Chapter 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 v4.0 Chapter 1 24 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public