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May 08, 2006

Create DHCP Scopes

Use the Windows 2003 Netsh command to change network settings
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Using the Microsoft Management Console (MMC) DHCP snap-in to set up a DHCP server, authorize it, and create a DHCP scope is a fairly trivial task.

Unfortunately, if you have to create and manage dozens if not hundreds of subnets on a regular basis, using a GUI to create DHCP scopes with all the options you want, such as exclusions and reservations, is far from ideal. If you're sick of going through the MMC to create your new DHCP scopes, you'll be glad to hear that you can accomplish the necessary tasks at a command prompt. Windows Server 2003 includes a utility called Netsh that you can use to manipulate DHCP server parameters at the command prompt. This, of course, means that you can script DHCP scope setting and even incorporate it as part of an automated workflow.

Netsh
According to Microsoft's documentation, "Netsh is a command-line scripting utility that allows you to, either locally or remotely, display or modify the network configuration of a computer that is currently running." You can think of Netsh as just another command-line utility like xcopy.exe or net.exe, but it's really more of a command shell similar to Telnet or FTP. In fact, if you open a command prompt and type

netsh 

you get a netsh prompt at which you can enter commands interactively with the shell. . . .


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