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Monday 5 March 2012

Using Windows' IP Configuration utility to troubleshoot TCP/IP

Troubleshooting and diagnosing TCP/IP problems on a Windows network can be difficult. However, the task is easier if you understand how to use the native tools. One such tool is the IP Configuration utility, designed to provide detailed information on a Windows system’s TCP/IP network configuration. This information can be used to help verify network connections and settings. Along with other TCP/IP tools, IP Configuration can help you solve Windows TCP/IP problems.

In this Daily Feature, I will show you how to use the IP Configuration utility, and I’ll point out some new features that have been added to this utility in Windows 2000.

Graphical vs. command line
Windows 95 and Windows 98 come with a version of the IP Configuration utility that has a graphical interface, while the Windows NT and Windows 2000 versions use the command line. Note also that Windows 98 contains both the graphical and command-line versions.

To launch the graphical version in Windows 95 and Windows 98, choose Start | Run, typeWinipcfg.exe, and click OK. To launch the command-line version in Windows 98, Windows NT, and Windows 2000, open an MS-DOS or command prompt, type Ipconfig.exe, and press [Enter]. To see a list of the parameters that you can use with this command, type Ipconfig.exe /?.

Looking at the basic display
The main function of the IP Configuration utility is to provide you with a Windows system’s TCP/IP configuration. When you run the graphical interface in Windows 95 or Windows 98, you’ll see a dialog box like the one shown in Figure A.


The initial IP Configuration dialog box displays basic information about the system’s TCP/IP network configuration.

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