I just installed WinPcap 4.1 beta 5 on a Win 2008 Server 64-bit virtual 
machine (running on VMWare Server 2).

Wireshark (1.2.1) shows a large number of duplicate copies of many (but not 
all) messages.  For example, if I ping the virtual machine from another 
machine, I see about 126 ping requests and replies for each ping request 
sent.  ARP messages do not appear to be duplicated, but most others are 
(all TCP as far as I can tell, but few if any UDP).  Dumpcap shows the same 
number of messages as Wireshark.

If I install WinPcap 4.1 beta 5 on the host Win 2008 64-bit machine and do 
the same ping as above, I see much fewer duplicates, 2-3.

Any idea what is happening?  Is this some artifact of the VMWare network 
drivers?

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