From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:47662) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YaMir-0001jp-1q for qemu-devel@nongnu.org; Tue, 24 Mar 2015 07:10:13 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1YaMin-0007wZ-Bi for qemu-devel@nongnu.org; Tue, 24 Mar 2015 07:10:13 -0400 Received: from mail-we0-x235.google.com ([2a00:1450:400c:c03::235]:34996) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YaMin-0007wV-5b for qemu-devel@nongnu.org; Tue, 24 Mar 2015 07:10:09 -0400 Received: by weoy45 with SMTP id y45so10675310weo.2 for ; Tue, 24 Mar 2015 04:10:08 -0700 (PDT) Date: Tue, 24 Mar 2015 11:10:06 +0000 From: Stefan Hajnoczi Message-ID: <20150324111006.GD13011@stefanha-thinkpad.redhat.com> References: <20141219153639.25009.84583.malonedeb@wampee.canonical.com> <20150107160955.30560.22690.malone@chaenomeles.canonical.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="u65IjBhB3TIa72Vp" Content-Disposition: inline In-Reply-To: <20150107160955.30560.22690.malone@chaenomeles.canonical.com> Subject: Re: [Qemu-devel] [Bug 1404278] Re: tap connections not working on windows host List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Bug 1404278 <1404278@bugs.launchpad.net> Cc: qemu-devel@nongnu.org --u65IjBhB3TIa72Vp Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Wed, Jan 07, 2015 at 04:09:55PM -0000, timsoft wrote: > I have tried what you suggested (breaking the bridge on the host, and giving the host tap 192.168.5.1 and the guest eth0 192.168.5.2 > and tried pinging one from the other. I get 100% packet loss. > This points to QEMU's tap networking as far as I can see. > I have tried uninstalling the 64 bit version and installing the 32bit tap adapter (and bridging it) from openvpn 2.3.6-I601 but that didn't seem to make any difference. You could put a fprintf(stderr, "Receiving a packet\n") into net/tap-win32.c:tap_win32_send() as well as fprintf(stderr, "Sending a packet\n") into tap_win32_write() if you think QEMU's Windows tap code is broken. Stefan --u65IjBhB3TIa72Vp Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQEcBAEBAgAGBQJVEUYOAAoJEJykq7OBq3PIW5MIAIB0NmuWMDIJ4ehZGE1jKuJx TPr7KQ/c3CvCv186Lo6yJH6DWjTo4GTeuZAaLKnp5h9Q57DN4bpx4Yi1oQC5XVJl 6IOm6L/K7wnvRYfmVRNkW6nlZIivj/bDZ3MPj69zKJ5z4aI8sREU47n6n3xP9RqE 0Dd5x794pPt9KP9w+86o2+djilCJVowdi6UrBZjALWvgCauWyDkrR1EXVdPIfGmD wcnGWVC10ALfdjA76CLUknaXap7WW7vx3f5NkezbxwKTSSGIkSW4dhlpkgMTQj6r vFKH0R7qxjQEqTplB94vqaQ0VmhXOrn3rW2smkY66dQUkdnnJ/WK/KmGOvr3c8w= =NDWO -----END PGP SIGNATURE----- --u65IjBhB3TIa72Vp--