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

[timsoft]

output as requested from the guest:
 ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKOWN
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP 
qlen 1000
    link/ether 52:54:00:12:34:56 brd ff:ff:ff:ff:ff:ff
    inet 10.1.1.143/24 brd 10.1.1.255 scope global eth0
       valid_lft forever preferred_lft forever
    inet6 fe80::5054:ff:fe12:3456/64 scope link
       valid_lft forever prefered_lft forever

ip route
default via 10.1.1.88 dev eth0 metric 1
10.1.1.0/24 dev eth0  proto kernel  scope link  src 10.1.1.143
127.0.0.0/8 dev lo  scope link

iptables -L -n
Chain INPUT (policy ACCEPT)
target     prot opt source               destination

Chain FORWARD (policy ACCEPT)
target     prot opt source               destination

Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination

the output of ipconfig /all on the windows host is as follows
Windows IP Configuration

   Host Name . . . . . . . . . . . . : timoffice
   Primary Dns Suffix  . . . . . . . :
   Node Type . . . . . . . . . . . . : Hybrid
   IP Routing Enabled. . . . . . . . : No
   WINS Proxy Enabled. . . . . . . . : No

Ethernet adapter netbridge:

   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : MAC Bridge Miniport
   Physical Address. . . . . . . . . : 02-FF-9A-6A-E7-7C
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes
   Link-local IPv6 Address . . . . . : fe80::24f3:ff1d:12cb:5fbb%16(Preferred)
   IPv4 Address. . . . . . . . . . . : 10.1.1.41(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Default Gateway . . . . . . . . . : 10.1.1.88
   DHCPv6 IAID . . . . . . . . . . . : 469958554
   DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1B-E0-26-A3-BC-5F-F4-EE-19-98

   DNS Servers . . . . . . . . . . . : 10.1.1.88
   NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter isatap.{03958EF2-282D-45A7-9B98-0E447AA401A0}:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Microsoft ISATAP Adapter
   Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Teredo Tunneling Pseudo-Interface:

   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
   Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes
   IPv6 Address. . . . . . . . . . . : 2001:0:9d38:90d7:3005:1b7:f5fe:fed6(Prefe
rred)
   Link-local IPv6 Address . . . . . : fe80::3005:1b7:f5fe:fed6%13(Preferred)
   Default Gateway . . . . . . . . . : ::
   NetBIOS over Tcpip. . . . . . . . : Disabled

and for reference, the vm is started with the following batch file/cmd
line

cd "c:\program files (x86)\qemu"
qemu-system-x86_64w.exe -m 512 -net nic -net tap,ifname=tap01 -hda 
"c:\\data\\images\\test.img"


** Attachment added: "screenclip of  host network connections"
   
https://bugs.launchpad.net/qemu/+bug/1404278/+attachment/4293202/+files/hostnetconfig.jpg

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https://bugs.launchpad.net/bugs/1404278

Title:
  tap connections not working on windows host

Status in QEMU:
  New

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
  "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.

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