From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.33) id 1CCvQS-0000v5-6L for qemu-devel@nongnu.org; Thu, 30 Sep 2004 03:32:28 -0400 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.33) id 1CCvQQ-0000uS-SN for qemu-devel@nongnu.org; Thu, 30 Sep 2004 03:32:27 -0400 Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.33) id 1CCvQQ-0000uI-Ka for qemu-devel@nongnu.org; Thu, 30 Sep 2004 03:32:26 -0400 Received: from [62.4.22.179] (helo=mail.bbrox.com) by monty-python.gnu.org with esmtp (Exim 4.34) id 1CCvK1-0003dT-Dw for qemu-devel@nongnu.org; Thu, 30 Sep 2004 03:25:49 -0400 Date: Thu, 30 Sep 2004 09:25:42 +0200 From: Lionel Ulmer Subject: Re: [Qemu-devel] Feature request: option to disable protection in user mode networking Message-ID: <20040930092541.A692@bbland> References: <1096346193.6787.2.camel@station6.example.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1096346193.6787.2.camel@station6.example.com>; from mmaccana@redhat.com on Tue, Sep 28, 2004 at 02:36:33PM +1000 Reply-To: qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org > User mode networking is nifty++. I was wondering, though if it would be > possible to disable the guest OS protection as a runtime option. This is not possible as (AFAIK), QEMU's ethernet adaptator emulation layer has absolutely no idea on which ports the guest OS is listening to. So to do what you want, it would entail opening all possible ports on the QEMU side and 'forward' them to the guest OS. This is already possible, but I doubt that you want to DoS your Linux box by using all possible ports :-) Lionel -- Lionel Ulmer - http://www.bbrox.org/