TripleO deployment over IPV6

Julia Kreger juliaashleykreger at gmail.com
Tue Jul 25 14:40:43 UTC 2023


Greetings,

I don't think I saw your original email. I suspect because you indicated
there was an attachment, it might have been filtered for moderation by the
mailing list.


On Tue, Jul 25, 2023 at 6:24 AM Lokendra Rathour <lokendrarathour at gmail.com>
wrote:

> Hi Takashi/ Team,
> Any inputs with respect to the same will be of great help.
>
> Thanks,
> Lokendra
>
>
> On Tue, Jul 25, 2023 at 4:29 PM Kushagr Gupta <
> kushagrguptasps.mun at gmail.com> wrote:
>
>> Hi Team,
>>
>> We were trying to perform IPV6-based deployment of TripleO.
>> We are following the link:
>>
>> https://access.redhat.com/documentation/en-us/red_hat_openstack_platform/16.0/html/bare_metal_provisioning/sect-deploy#sect-example-templates
>>
>>
>>
>
Try following the more recent documents, specifically OSP16.1 or 16.2.

> As per our environment, we set the "ipv6_address_mode" to
>> "dhcpv6-stateful" and tried undercloud deployment. It was successful.
>>
>>
>>
> Good, that is required for IPv6 PXE.

> But when we try node introspection, openstack is not providing an IP that
>> will be used for PXE booting the system. We have enabled PXE booting on the
>> IPV6 network.
>> On Dell machines, we get the following error:
>> "PXE-E16: No offer received."
>>
>
I suspect we will need to see the configuration. Paste.opendev.org?

> For your reference, the undercloud file which we used is attached.
>> We also tried to find the communication happening on the br-ctlplane
>> interface when the machine tries to boot over IPV6 PXE boot. I am attaching
>> those tcpdump records as well. We are unable to find the MAC address of our
>> machines.
>>
> I suspect this might be in the territory of the hardware, while being set
for IPv6 network booting, maybe the configuration needs to be
checked/reasserted on the interface level. It sounds as if it is using a
different interface.

Not seeing the expected MAC addresses is rather suspect in this case,
although PXE with v6 is a little different pattern wise. Have you tried
mirroring the port your expecting to see traffic cross from the physical
machine to see if it is seeing the announcements and issuing the DHCPv6
packets required?

Additionally is this UEFI mode or Legacy BIOS mode?

> *Questions:*
>> 1. Is it even possible to perform tripleO deployment with IPV6?
>> 2. Do we need to do some extra settings, so that our baremetal machines
>> can be PXE booted?
>>
>> Thanks and Regards
>>
>
>
> --
> ~ Lokendra
> skype: lokendrarathour
>
>
>
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