KnowledgeBase Archive

An Archive of Early Microsoft KnowledgeBase Articles

View on GitHub

Q120016: TCP/IP-32: ARP -S Switch Fails on First Entry Added to ARP Cache

Article: Q120016
Product(s): Windows for Workgroups and Windows NT Networking Issues
Version(s): 3.11
Operating System(s): 
Keyword(s): 
Last Modified: 06-FEB-2002

-------------------------------------------------------------------------------
The information in this article applies to:

- Microsoft TCP/IP-32 for Windows for Workgroups, version 3.11 
- Microsoft Windows for Workgroups version 3.11 
-------------------------------------------------------------------------------


SYMPTOMS
========

With Microsoft TCP/IP-32, when you attempt to add the first Address Resolution
Protocol (arp) entry into an empty arp cache using the arp -s switch, it will
appear to function correctly, but the entry will fail to load if you provide
only the first two parameters. For example, when you execute the command:

  arp -s 22.101.33.237 08-00-2b-2e-98-b3

it will appear to have been added, but when you interogate the protocol data by
executing the command:

  ARP -a

you will receive no results, indicating the arp cache is still empty.

WORKAROUND
==========

You can work around this problem by providing all three of the arp -s parameters
when adding an initial entry into an empty arp cache.

After the following complete arp -s initial arp cache entry:

  arp -s 22.101.33.236 08-00-2b-30-d1-e0 22.101.33.237

the following results would be reported from the arp cache using arp -a:

Interface: 22.101.33.237

 Internet Address       Physical Address          Type
 22.101.33.236          08-00-2b-30-d1-e0         Static

NOTE: To get a complete description of arp switches and parameters, at the
command prompt type "arp" (without the quotation marks) and press ENTER.

STATUS
======

Microsoft has confirmed this to be a problem in MS TCP/IP-32. We are researching
this problem and will post new information in the Microsoft Knowledge Base as it
becomes available.

Additional query words: wfw wfwg prodtcp32 1.0

======================================================================
Keywords          :  
Technology        : kbAudDeveloper kbTCPIPSearch kbWFWSearch kbZNotKeyword3 kbWFW311 kbTCPIP311
Version           : :3.11

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

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.