[Qemu-devel] [Bug 589564] Re: Windows host tap (tap-win32) is not working on QEMU ver 0.12.X

[Stefan Weil]

Commit c3febae62b646b5bc7aa88b7cffa88160162a94e fixed this problem.

** Changed in: qemu
       Status: New => Fix Released

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Title:
  Windows host tap (tap-win32) is not working on QEMU ver 0.12.X

Status in QEMU:
  Fix Released

Bug description:
  To reproduce the bug:

  1) Install tap driver from openvpn (either v8/v9). Rename the tap
  connection to "mytap" and set the IP to 192.168.1.1 (or any ip)

  2) use any QEMU 0.12.X and issue the following command

  c:\qemu> qemu -net nic -net tap,ifname=mytap -cdrom ../linux.iso

  3) Inside linux guest system, set the ip of the nic

  # ifconfig eth0 192.168.1.2

  4) In the windows host try to ping the linux guest (or the other way
  around, after you disable the windows firewall)

  c:\qemu> ping 192.168.1.2
  Pinging 192.168.1.2 with 32 bytes of data:
  Reply from 192.168.1.1: Destination host unreachable.

  Those above steps is not working on QEMU 0.12.X. But confirmed working (ping 
successful) on:
  - QEMU 0.9.X
  - QEMU 0.10.X
  - QEMU 0.11.X

  I have tried with windows XP and windows 7 host system. I haven't
  tried the qemu latest from git repository, but looking at the "net
  /tap-win32.c" revision date, I guess the bug has been around for a
  while.

  Thanks.

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