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From: timsoft <tim@tree-of-life.co.uk>
To: qemu-devel@nongnu.org
Subject: [Qemu-devel] [Bug 1404278] Re: tap connections not working on windows host
Date: Wed, 07 Jan 2015 16:09:55 -0000
Message-ID: <20150107160955.30560.22690.malone@chaenomeles.canonical.com> (raw)
In-Reply-To: <20141219153639.25009.84583.malonedeb@wampee.canonical.com>

I have tried what you suggested (breaking the bridge on the host, and giving the host tap and the guest eth0
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.

I tried using a very old qemu (0.11.1) with qemu manager and the 32bit tap adapter and bridge set up (using the same disk image but specifying intel  E1000 netcard for the vm) and that works.
so some time between 0.11.1 and 2.0 tap networking has got broken.

I can spend some more time trying stuff out if you have any suggestions. There must be some people actually using the windows host qemu and tap somewhere! :-)
(I don't have any problems running with a linux host and tap bridged network - well a few errors, but it (networking) seems to work anyway)

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  tap connections not working on windows host

Status in QEMU:

Bug description:
  using latest qemu 2.2.0 64bit for windows host (installed from
  qemu-w64-setup-20141210.exe obtained from http://qemu.weilnetz.de/w64/
  ),OpenVPN 2.6.3-I601 64bit tap adapter named tap01 and calling qemu
  using the following.

  qemu-system-x86_64.exe -m 512 -net nic -net tap,ifname=tap01 -hda

  where the image contains a slackware 14.0 64bit install.
  The tap is bridged with the real network adapter and the bridge is given an ip of (which works as the ip for the windows host). The tap adapter (in network connections) shows connected when the qemu vm is running. inside the vm, the network is given an ip of (the netmask and default gateway are the same for the virtual and real pc).
  The vm cannot see the rest of the local network or visa-versa. This used to work in early (0.9 32bit) versions of qemu.

To manage notifications about this bug go to:

  parent reply index

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-12-19 15:36 [Qemu-devel] [Bug 1404278] [NEW] " timsoft
2014-12-19 21:09 ` [Qemu-devel] [Bug 1404278] " timsoft
2015-01-02 13:38 ` [Qemu-devel] [Bug 1404278] [NEW] " Stefan Hajnoczi
2015-01-05 17:11 ` [Qemu-devel] [Bug 1404278] " timsoft
2015-01-06 11:47   ` Stefan Hajnoczi
2015-01-06 21:12 ` timsoft
2015-01-07  9:06   ` Stefan Hajnoczi
2015-01-06 21:30 ` timsoft
2015-01-07 12:51   ` Stefan Hajnoczi
2015-01-07 16:09 ` timsoft [this message]
2015-03-24 11:10   ` Stefan Hajnoczi
2015-01-12  3:02 ` Tommy
2015-01-21 21:16 ` neil prideaux
2015-02-07 23:48 ` James J Myers
2018-05-22 13:33 ` Thomas Huth
2018-05-29 14:38   ` timsoft
2018-05-31  7:44 ` timsoft
2018-05-31  7:49 ` timsoft
2018-05-31 11:41 ` Thomas Huth
2018-05-31 11:42 ` Thomas Huth
2018-09-10 15:59 ` Jan Marti
2018-09-10 16:07 ` Jan Marti
2018-09-10 16:54 ` Jan Marti
2018-09-10 17:57 ` Jan Marti
2018-09-11  8:48 ` timsoft
2020-08-02 15:59 ` hakan

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