DOCUMENT:Q193209  09-AUG-2001  [winnt]
TITLE   :Gethostbyname Not Working Correctly with Only DUN Installed
PRODUCT :Microsoft Windows NT
PROD/VER:WinNT:4.0
OPER/SYS:
KEYWORDS:kbWinNT400sp4fix

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The information in this article applies to:

 - Microsoft Windows NT Server version 4.0 
 - Microsoft Windows NT Workstation version 4.0 
 - Microsoft Windows NT Server, Enterprise Edition version 4.0 
 - Microsoft Windows NT Server version 4.0, Terminal Server Edition 
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SYMPTOMS
========

If your system has only Dial Up Networking (DUN) installed and you are not
connected to anything, name resolution to your local host may fail.

RESOLUTION
==========

To resolve this problem, obtain the latest service pack for Windows NT 4.0 or
Windows NT Server 4.0, Terminal Server Edition. For additional information,
please see the following article in the Microsoft Knowledge Base:

   Q152734 How to Obtain the Latest Windows NT 4.0 Service Pack



STATUS
======

Microsoft has confirmed this to be a problem in Windows NT 4.0 and Windows NT
Server 4.0, Terminal Server Edition. This problem was first corrected in Windows
NT 4.0 Service Pack 4.0 and Windows NT Server 4.0, Terminal Server Edition
Service Pack 4.

MORE INFORMATION
================

To test name resolution to your local host, perform the following steps:

1. Click Start, click Programs, and click Command Prompt.

2. At the command prompt type the following:

   c:\ping localhost

Name resolution is successful if you get a response back that looks like the
following:

   Pinging <your machine name> [127.0.0.1] with 32 bytes of data:
   Reply from 127.0.0.1: bytes=32 time<10ms TTL=128
   Reply from 127.0.0.1: bytes=32 time<10ms TTL=128
   Reply from 127.0.0.1: bytes=32 time<10ms TTL=128
   Reply from 127.0.0.1: bytes=32 time<10ms TTL=128

Name resolution is not working if the response is:

   bad ip address

Additional query words: RAS DUN Name Resolution

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Keywords          : kbWinNT400sp4fix 
Technology        : kbWinNTsearch kbWinNTWsearch kbWinNTW400 kbWinNTW400search kbWinNT400search kbWinNTSsearch kbWinNTSEntSearch kbWinNTSEnt400 kbWinNTS400search kbWinNTS400 kbNTTermServ400 kbNTTermServSearch
Version           : WinNT:4.0
Issue type        : kbbug
Solution Type     : kbfix

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Copyright Microsoft Corporation 2001.