Removing Custom DHCP Scope Option Sets Lease Duration to Zero

• Microsoft Windows NT Server versions 4.0, 4.0 SP1, 4.0 SP2, 4.0 SP3, 4.0 SP4, 4.0 SP5

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 this to be a problem in the Microsoft products 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 kbtool
Version : winnt:4.0,4.0 SP1,4.0 SP2,4.0 SP3,4.0 SP4,4.0 SP5
Platform : winnt
Issue type : kbprb