Extending DHCP Start Address

 Last reviewed: September 30, 1997
Article ID: Q151696
The information in this article applies to:
  • Microsoft Windows NT Server versions 3.5, 3.51 and 4.0

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

Additional query words:
Keywords : NTSrv kbenv kbnetwork
Version : WinNT:3.5,3.51,4.0
Platform : winnt
Issue type : kbbug

THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY.

Last reviewed: September 30, 1997
© 1998 Microsoft Corporation. All rights reserved. Terms of Use.