Microsoft KB Archive/236339

= Removing Custom DHCP Scope Option Sets Lease Duration to Zero =

Article ID: 236339

Article Last Modified on 11/1/2006

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APPLIES TO


 * Microsoft Windows NT Server 4.0 Standard Edition
 * Microsoft Windows NT 4.0 Service Pack 1
 * Microsoft Windows NT 4.0 Service Pack 2
 * Microsoft Windows NT 4.0 Service Pack 3
 * Microsoft Windows NT 4.0 Service Pack 4
 * Microsoft Windows NT 4.0 Service Pack 5

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This article was previously published under Q236339



SYMPTOMS
When you view the lease duration for a DHCP scope, it may be set to 0 days, 0 hours, and 0 minutes.



CAUSE
This problem can occur after a customized DHCP Option is removed from the DHCP Scope. Note that this does not happen when you remove a custom Global Option.



RESOLUTION
To work around this problem, manually set the lease duration back to the previous value. Note that the default lease duration is 3 days.



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.



MORE INFORMATION
DHCP extensibility provides the ability to add custom DHCP options. This is done within DHCP Manager by clicking Defaults on the DHCP Options menu. In the Default Values window, the New button permits you to create the custom option. For example, to create a custom option that assigns an FTP server with an option number of 161, type the following information in the following fields:

Name: FTP Option

Data Type: IP Address

Identifier: 161

Comment: FTP Server

After this is done, the custom scope option can now be added to global or scope properties.

Additional query words: zero

Keywords: kbnetwork kbprb KB236339

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