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From: Julian Seward <jseward@acm.org>
To: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] network fails on windows
Date: Sat, 17 Jul 2004 16:21:44 +0100	[thread overview]
Message-ID: <200407171621.44768.jseward@acm.org> (raw)
In-Reply-To: <200407171707.40476.matthias.jung@uni-dortmund.de>


I agree, there is something funny to do with networking with
WinXP/Win2K guests.  I use user-mode networking with the
current cvs head.  Sometimes XP is able to make a connection
to the outside world; yet if I just leave the guest machine
idle and try an hour later then it can't; try again 5 minutes
later and it's OK again.  It's very frustrating.  I have no idea
what's happening.  Also, even when it can communicate with 
other machines on my local network, it's really slow.

Wierd thing is, running Red Hat 7.3 as a guest, with user-mode
networking, the guest's connections to the outside world are
both reliable and fast.  Which corresponds with Matthias' observation.

Any ideas?  Has anyone else got any related observations?

J

On Saturday 17 July 2004 16:07, Matthias Jung wrote:
> Hi,
> i have found a bug: for long I was not able to use the network part of
> qemu, I tried almost everything to get a guest Windows LAN access, nothing
> worked. Neither tun nor user-net was working, no matter how hard i tried,
> and only Windows seemed to have this problem, linux guests always performed
> fine. -isa didnt help either.
> I was just on the verge of giving up until i tried one last thing:
> I switched the mac address parameter. Til then I had used the mac
> a3:b2:23:54:7e:cf which is a valid mac and windows did detect the interface
> without flaws, but no network access was possible.
> With 00:ff:7f:fc:36:d2 it suddenly worked, I only can imagine a bug in the
> ne2000 windows driver, or in windows (95,98,2000 tested) itself, not
> allowing such a mac.
> I had no mac collision at any time!
>
> happy that its finally working,
>
> Matthias Jung
>
>
> _______________________________________________
> Qemu-devel mailing list
> Qemu-devel@nongnu.org
> http://lists.nongnu.org/mailman/listinfo/qemu-devel

  reply	other threads:[~2004-07-17 15:40 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-07-17 15:07 [Qemu-devel] network fails on windows Matthias Jung
2004-07-17 15:21 ` Julian Seward [this message]
2004-07-17 20:55   ` John R. Hogerhuis
2004-07-17 21:52 ` Derek Fawcus

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