[Snort-users] Win2K & Overlapped I/O Issue

David Yip dy at ...6387...
Fri Aug 9 08:20:02 EDT 2002

The latest WinPcap doesn't support SMP. The solutions:

1. Disable one of the CPU.
2. Try older version of WinPcap AT YOUR OWN RISK, I've been succeeded on a 
dual PII machine some time ago but I've forgotten the exact version, should 
be 2.0/2.1 or older.

Actually, I've asked for help from the author of winpcap and confirmed that 
the above are the only solutions since he doesn't have a SMP machine for 
testing. I wonder if we can help on testing the SMP version and have a SMP 
supported version 2.4?

At 15:03 9/8/2002, Alexandre GIGLEUX wrote:
>Yes exactly.
>I'am working on a Compaq EVO W8000 Dual Xeon Processor.
>Please tell me that you have a solution.
>----- Original Message -----
>From: <mailto:tsevy at ...1701...>Tom Sevy
>To: <mailto:'Alexandre.Gigleux at ...6495...'>'Alexandre.Gigleux at ...6495...'
>Sent: Thursday, August 08, 2002 5:38 PM
>Subject: RE: [Snort-users] Win2K & Overlapped I/O Issue
>Are you running on an SMP (dual Processor) system?
>-----Original Message-----
>From: Alexandre GIGLEUX [mailto:Alexandre.Gigleux at ...6495...]
>Sent: Thursday, August 08, 2002 11:19 AM
><mailto:Snort-users at lists.sourceforge.net>Snort-users at lists.sourceforge.net
>Subject: [Snort-users] Win2K & Overlapped I/O Issue
>This question was posted sometimes ago.
>I'am in the same situation, is someone has the answer of this issue ?
> > I'm setting up a new install of Snort on Win2k and I'm getting the "ERROR:
> > OpenPcap( ) device open: Error opening adapter: Overlapped I/O operation
> > in progress.  Fatal Error, Quitting.."
> >
> > The FAQ says this can be due to an old incompatible, or uninstalled
> > of WinPcap.  I'm using 2.3 and the install appears to be running
> > successfully. Is there any way I can check to make sure it is, or is this
> > already a known issue?
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