DHCP Client Is Assigned Subnet Broadcast Address

Last reviewed: December 22, 1997
Article ID: Q177824
The information in this article applies to:
  • Microsoft Windows NT Workstation version 4.0
  • Microsoft Windows NT Server version 4.0

SYMPTOMS

One or more of your Dynamic Host Control Protocol (DHCP) clients may experience problems communicating on the network using TCP/IP. These problems may include one or more of the following:

  • The inability to successfully ping other TCP/IP hosts.

    -or-

  • The inability to resolve NetBIOS or Host names of other TCP/IP hosts.

CAUSE

Your DHCP server may have assigned the client a subnet broadcast address instead of a valid IP address.

RESOLUTION

To resolve this issue, use one of the following:

  • When creating scopes, do not include the subnet broadcast address. For example:

          Creating a scope of 192.168.1.1-255 with Mask 255.255.255.0 may
          result in a DHCP client being offered the 192.168.1.255 address,
          which is the subnet broadcast address. Instead, you should create the
          scope 192.168.1.1-254 with Mask 255.255.255.0.
    

    -or-

  • To modify an existing scope, create an exclusion for the subnet broadcast address.

For additional information, please see the following article in the Microsoft Knowledge Base:

   ARTICLE-ID: 164015
   TITLE     : Understanding TCP/IP Addressing and Subnetting Basics

STATUS

Microsoft has confirmed this to be a problem in Windows NT version 4.0. We are researching this problem and will post new information here in the Microsoft Knowledge Base as it becomes available.

Keywords          : kbbug4.00 NTINTEROP ntnetserv NTSrvWkst nttcp kbinterop kbnetwork
Version           : WinNT: 4.0
Platform          : winnt
Issue type        : kbbug
Solution Type     : kbworkaround


================================================================================


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: December 22, 1997
© 1998 Microsoft Corporation. All rights reserved. Terms of Use.