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

 Last reviewed: September 9, 1996
Article ID: Q120016
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.

WORK AROUND

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 reference words: wfw wfwg prodtcp32 1.0
KBCategory: kbnetwork kbbug1.00 kbfasttip
KBSubCategory: ntprotocol NTTCP



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Last reviewed: September 9, 1996
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