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Old 06-08-2011, 03:20 PM
"Trever L. Adams"
 
Default World IPv6 Day Problems

DIVERT and SOCKET are not usable for TPROXY4 stuff in Squid due to what
bug https://bugzilla.redhat.com/show_bug.cgi?id=662399 calls a user
space problem.

libvirtd VMs cannot have outside accessible IPv6 addresses
autoconfigured. I mentioned the problem, at least as far as I was able
to find it at https://bugzilla.redhat.com/show_bug.cgi?id=514749

I would be doing more IPv6 testing but none of the F15 isos from
fedoraproject.org will boot. They all crash on boot.

Trever

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Old 06-08-2011, 03:32 PM
Tom Hughes
 
Default World IPv6 Day Problems

On 08/06/11 16:20, Trever L. Adams wrote:

> libvirtd VMs cannot have outside accessible IPv6 addresses
> autoconfigured. I mentioned the problem, at least as far as I was able
> to find it at https://bugzilla.redhat.com/show_bug.cgi?id=514749

Works fine for my VMs with bridged networking - they see the radvd on
the network and configure an address.

Tom

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Old 06-08-2011, 03:42 PM
"Trever L. Adams"
 
Default World IPv6 Day Problems

On 06/08/2011 09:32 AM, Tom Hughes wrote:
>
> Works fine for my VMs with bridged networking - they see the radvd on
> the network and configure an address.
>
> Tom
>
Would you care to share some documentation of some kind?

<network>
<name>TheCommons</name>
<uuid>....</uuid>
<forward mode='route'/>
<bridge name='virbr0' stp='off' delay='0' />
<ip address='10.0.1.1' netmask='255.255.255.0'>
</ip>
<ip family='ipv6' address='fd00:xxxx:xxxx:1::1' prefix='64'>
</ip>
<ip family='ipv6' address='2001:xxxx:xxxx:0::1' prefix='64'>
</ip>
</network>

That didn't automatically add any of the ipv6 addresses. As I said, no
radvd. If I read the bug reports correctly, it is supposed to be automagic.

Also, the systctl stuff mentioned in the bugs reports I mentioned were
set to not allow ipv6, etc. Did you override these defaults somewhere?

Thank you,
Trever

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Old 06-08-2011, 03:52 PM
"Daniel P. Berrange"
 
Default World IPv6 Day Problems

On Wed, Jun 08, 2011 at 09:42:22AM -0600, Trever L. Adams wrote:
> On 06/08/2011 09:32 AM, Tom Hughes wrote:
> >
> > Works fine for my VMs with bridged networking - they see the radvd on
> > the network and configure an address.
> >
> > Tom
> >
> Would you care to share some documentation of some kind?
>
> <network>
> <name>TheCommons</name>
> <uuid>....</uuid>
> <forward mode='route'/>
> <bridge name='virbr0' stp='off' delay='0' />
> <ip address='10.0.1.1' netmask='255.255.255.0'>
> </ip>
> <ip family='ipv6' address='fd00:xxxx:xxxx:1::1' prefix='64'>
> </ip>
> <ip family='ipv6' address='2001:xxxx:xxxx:0::1' prefix='64'>
> </ip>
> </network>
>
> That didn't automatically add any of the ipv6 addresses. As I said, no
> radvd. If I read the bug reports correctly, it is supposed to be automagic.

Yes, when you add that <ip family='ipv6'> line and then
restart the network (virsh net-destroy TheCommons && virsh net-create TheCommons)
it should have started radvd automatically. The guest should then have automatically
got an address from radvd. This all works fine in my testing.

> Also, the systctl stuff mentioned in the bugs reports I mentioned were
> set to not allow ipv6, etc. Did you override these defaults somewhere?

That other bug is irrelevant, refering to much older libvirt prior to the
introduction of IPv6 support.

Daniel
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Old 06-08-2011, 03:53 PM
Tom Hughes
 
Default World IPv6 Day Problems

On 08/06/11 16:42, Trever L. Adams wrote:

> Would you care to share some documentation of some kind?
>
> <network>
> <name>TheCommons</name>
> <uuid>....</uuid>
> <forward mode='route'/>
> <bridge name='virbr0' stp='off' delay='0' />
> <ip address='10.0.1.1' netmask='255.255.255.0'>
> </ip>
> <ip family='ipv6' address='fd00:xxxx:xxxx:1::1' prefix='64'>
> </ip>
> <ip family='ipv6' address='2001:xxxx:xxxx:0::1' prefix='64'>
> </ip>
> </network>
>
> That didn't automatically add any of the ipv6 addresses. As I said, no
> radvd. If I read the bug reports correctly, it is supposed to be automagic.

Ah that's a virtual bridge between your VMs. I'm bridging my VMs to br0
which is a bridge that includes the host's ethernet interface so that
the guests have direct access to the local LAN and can see the radvd
that is running on our gateway router.

Tom

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