Microsoft KB Archive/151696

= Extending DHCP Start Address =

Article ID: 151696

Article Last Modified on 11/1/2006

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APPLIES TO


 * Microsoft Windows NT Server 3.5
 * Microsoft Windows NT Server 3.51
 * Microsoft Windows NT Server 4.0 Standard Edition

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This article was previously published under Q151696





SYMPTOMS
If you extend the start address of the Dynamic Host Configuration Protocol (DHCP) scope, you may receive one of the following error messages:

Windows NT Server 3.5
The parameter is incorrect

Windows NT Server 3.51 or later
The range is extended less than the specified backward extension. Extend the range in integral of 32 IP addresses.



CAUSE
The above error messages are a result of the DHCP Scope being extended in increments not equal to 32.



RESOLUTION
Configure the start address in increments of 32 IP addresses.



MORE INFORMATION
Below is an example of an invalid extended start address of a DHCP scope:

  DHCP Scope Start Address:  150.32.100.200 Extended DHCP Scope Start Address: 150.32.100.167

Below are examples of a valid extended start address of a DHCP scope:

  DHCP Scope Start Address:  150.32.100.200 Extended DHCP Scope Start Address: 150.32.100.168 Extended DHCP Scope Start Address: 150.32.100.136 Extended DHCP Scope Start Address: 150.32.100.104

Keywords: kbbug kbenv kbnetwork KB151696

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