Try this out for me...?

Hi all.

I have found that IPv6 does not seem function correctly for a VirtualBox
VM bridged to a wireless interface, even when the wireless interface is
working flawlessly for the host.

Are you in an IPv6 network? Do you have VirtualBox installed? Do you
normally communicate via wifi? If so, I'd greatly appreciate it if you
could try this and let me know how you go (off list is fine, I'll

- install a VM, OS is irrelevant as long as it supports IPv6

- configure the VM network interface to be bridged to the host adapter
(wlan0 or similar)

- see whether you have fully functional IPv6 on the VM

My experience is that I get weird partial functionality. I see
autoconfigured addresses and so on, but no useful connectivity is
possible - no pings, nothing. Neighbor discovery does not complete. And
yes, I have checked that no firewalls or packet filters are in the way.

The current suspects are my access point (an ancient Netgear, but the
host works fine over wifi), the wifi driver in Linux (but the host works
fine over wifi), and the VirtualBox network drivers (though they work
fine when the VM is bridged to an ethernet adapter)...

I've now seen this on 10.10 and 12.04, with two different wifi drivers
and across two versions of VirtualBox.

Regards, K.


Re: Try this out for me...?

By Joep L. Blom at 08/26/2012 - 10:56

On 26-08-12 12:18, Karl Auer wrote:
I don't know if it will help you but you can try VMware and see if they
are a little more advanced as IPv6 actually should be the standard since
at least > 10 years. I must confess I also still work with IPv4 but
that's I am lazy and follow the majority.

Re: Try this out for me...?

By NoOp at 08/27/2012 - 18:02

On 08/26/2012 07:56 AM, Joep L. Blom wrote:
Not sure if this help either, but I run VMWare Player (5.0.0 on newer
64bit machine & 3.1.5 on 32bit machine) on my laptops and miredo (Teredo
tunnel) works w/o issue.
Host(s): Ubuntu 12.04 and also Win7
Guest(s): Ubuntu 12.04, Fedora 17, WinXP
Network: Wifi on the host
Bridge from guest to host - host is running wifi only.

Sample from Ubuntu 12.04 guest:

$ ifconfig
eth0 Link encap:Ethernet HWaddr 00:0c:29:23:87:80
inet addr: Bcast: Mask:
inet6 addr: fe80::20c:29ff:fe23:8780/64 Scope:Link
RX packets:2085 errors:0 dropped:0 overruns:0 frame:0
TX packets:1042 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:2033131 (2.0 MB) TX bytes:111967 (111.9 KB)
Interrupt:19 Base address:0x2000

lo Link encap:Local Loopback
inet addr: Mask:
inet6 addr: ::1/128 Scope:Host
RX packets:156 errors:0 dropped:0 overruns:0 frame:0
TX packets:156 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:12971 (12.9 KB) TX bytes:12971 (12.9 KB)

teredo Link encap:UNSPEC HWaddr
inet6 addr: fe80::ffff:ffff:ffff/64 Scope:Link
inet6 addr: 2001:0:53aa:64c:382a:7435:ba1b:a1e1/32 Scope:Global
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:3 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:500
RX bytes:0 (0.0 B) TX bytes:144 (144.0 B)

$ ping6
PING 56 data bytes
64 bytes from icmp_seq=1 ttl=59 time=371 ms
64 bytes from icmp_seq=2 ttl=59 time=16.5 ms
64 bytes from icmp_seq=3 ttl=59 time=17.2 ms
--- ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2022ms
rtt min/avg/max/mdev = 16.509/135.031/371.306/167.072 ms

Connection to shows all working fine. I can also connect
to other machines on my lan using ipv6.

Re: Try this out for me...?

By NoOp at 08/27/2012 - 18:16

On 08/27/2012 03:02 PM, NoOp wrote:

Sorry, forgot to include the info:
Test with IPv4 DNS record
ok (0.363s) using ipv4
Test with IPv6 DNS record
ok (0.622s) using ipv6 Teredo
Test with Dual Stack DNS record
ok (0.249s) using ipv4
Test for Dual Stack DNS and large packet
ok (0.130s) using ipv4
Test IPv4 without DNS
ok (0.116s) using ipv4
Test IPv6 without DNS
ok (0.349s) using ipv6 Teredo
Test IPv6 large packet
ok (0.174s) using ipv6 Teredo

Re: Try this out for me...?

By sktsee at 08/26/2012 - 08:28

<a href="" title=""></a>

"On Linux hosts, functionality is limited when using wireless interfaces
for bridged networking. Currently, VirtualBox supports only IPv4 over
wireless. For other protocols such as IPv6 and IPX, you must choose a
wired interface."

Re: Try this out for me...?

By Karl Auer at 08/26/2012 - 08:54

On Sun, 2012-08-26 at 12:28 +0000, sktsee wrote:
I hate it when that happens :-) Thanks for the pointer.

I wonder when Oracle will get with the program and fix this? IPX might
not be a big priority, but IPv6?!?

Fascinating that router advertisements work just dandy, but other stuff

Thanks, K.