Ethereal-users: Re: [Ethereal-users] Problem with Ethereal on Dell 2650 Server

Note: This archive is from the project's previous web site, ethereal.com. This list is no longer active.

From: Guy Harris <guy@xxxxxxxxxx>
Date: Wed, 4 Dec 2002 15:03:00 -0800
On Wed, Dec 04, 2002 at 11:51:33PM +0100, K.Zatek@xxxxxxx wrote:
> I have a problem with Ethereal 0.9.7 on Dell 2650 Server.
> In Capture->Start->Interface I haven't got any interface but : singn?
> 
> When I try to capture something I have an error.

If the server is a multiprocessor machine, neither Ethereal nor any
other program that uses WinPcap will be able to capture packets:

	http://winpcap.polito.it/misc/faq.htm#q-15

"Q-15: Why doesn't WinPcap work on my multiprocessor (SMP) machine?

WinPcap does not support on SMP machines, because we don't have
multiprocessor computers on which to develop/test it.  For this reason,
recent versions have an initialization check that prevents them to load
on SMP machines.  Older versions don't have this check, so they are
loaded by the operating system (the driver seems to work) but the
results can be wrong (for example, several users reported wrong
timestamps on SMP machines).  Remember, it is not safe to run these
versions under SMP machines, since blue screens (that is to say a crash
of the PC) can happen."

If it is not a multiprocessor machine:

	http://www.ethereal.com/faq.html#q5.11