NETBIOS Node Status Query Returns First Instance of Unique Name

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Article ID: 154608 - View products that this article applies to.
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SYMPTOMS

When a gethostbyaddr() uses a NETBIOS Node Status Query to return the Machine Name of a device, it will return the first instance of the machine name that is registered as Unique [00h]. The order of the Unique <00> name registered can be viewed by running NBTSTAT -N at a command prompt.

CAUSE

Some services, other than the Workstation, that Register as Unique with the [00h] entry, will show up in the NETBIOS Node Status Query response as well as the Machine Name. These names can be returned by a gethostbyaddr() and can incorrectly identify the computer if they are listed first in the response above the Workstation Name entry.

Node IpAddress: [130.0.7.1] Scope Id: []

            NetBIOS Local Name Table

   Name               Type              Status
--------------------------------------------------
IS~FARMER             <00>  UNIQUE      Registered
FARMER                <00>  UNIQUE      Registered
USA                   <00>  GROUP       Registered
FARMER                <03>  UNIQUE      Registered
FARMER                <20>  UNIQUE      Registered
FARMER+++++++++       <BE>  UNIQUE      Registered
INet~Services         <1C>  GROUP       Registered
TESTER                <03>  UNIQUE      Registered
				

RESOLUTION

Stop and restart the service or services whose names are Registered as Unique [00h] above the Workstation Service entry in the NetBIOS Local Name Table.

Properties

Article ID: 154608 - Last Review: February 28, 2014 - Revision: 2.2
APPLIES TO
  • Microsoft Windows 2000 Server
  • Microsoft Windows 2000 Advanced Server
  • Microsoft Windows 2000 Professional Edition
  • Microsoft Windows NT Workstation 3.5
  • Microsoft Windows NT Workstation 3.51
  • Microsoft Windows NT Workstation 4.0 Developer Edition
  • Microsoft Windows NT Server 3.5
  • Microsoft Windows NT Server 3.51
  • Microsoft Windows NT Server 4.0 Standard Edition
Keywords: 
kbnosurvey kbarchive kbnetwork KB154608

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