Re: [Qemu-devel] [Bug 1404278] [NEW] tap connections not working on windows host

[Stefan Hajnoczi]

On Fri, Dec 19, 2014 at 03:36:39PM -0000, timsoft wrote:
> 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
> "c:\\data\\images\\test.img"
> 
> 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 10.1.1.41 (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 10.1.1.143 (the netmask and default 
> gateway are the same for the virtual and real pc).
> fault.
> 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.

Please try tcpdump or Wireshark on guest and host to check whether ping
works in either direction.

Stefan

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