It does not seem so.
Marek
On Friday, November 29th, 2024 at 10:53, Veronique Lefebure
<veronique.lefeb...@cern.ch> wrote:
> Hi Marek,
> The solution is to use flex-id.
> Cheers,
> Veronique
>
> ---------------------------------------------------------------
>
> From: Kea-users <kea-users-boun...@lists.isc.org> on behalf of Marek Greško
> via Kea-users <kea-users@lists.isc.org>
> Sent: Friday, November 29, 2024 10:45 AM
> To: Marcin Siodelski <mar...@isc.org>
> Cc: Marek Greško <marek.gre...@protonmail.com>; Kea user's list
> <kea-users@lists.isc.org>
> Subject: Re: [Kea-users] DHCPv6 DUID-LL matching
>
> Hello,
>
> I found out the problem source. It seems it is not achievable what I am
> trying to do. It works for the first time. The kea matches the DUID-LL and
> creates lease with full DUID. Then when the DUID changes, when the client
> tries to get the ip address, kea finds out the reservation address is already
> assigned to different DUID and offers IPv6 address from the pool then. So it
> seems the concept of storing reservations into the leases is not very mature.
> Or am I missing something? Is there some way to overcome the issue?
>
> Thanks
>
> Marek
>
> Sent with Proton Mail secure email.
>
> On Friday, November 29th, 2024 at 10:04, Marcin Siodelski <mar...@isc.org>
> wrote:
>
>> Marek,
>>
>> Have you configured MAC sources correctly? Since you're using MAC
>> address as host identifier you should also instruct the server where to
>> get the client's MAC address from. This is achieved by listing MAC
>> sources as described here:
>>
>> https://kea.readthedocs.io/en/kea-2.6.1/arm/dhcp6-srv.html#mac-hardware-addresses-in-dhcpv6
>>
>> Note that one of the sources can be DUID-LL. So you can do this:
>>
>> "mac-sources": [ "duid" ]
>>
>> If nothing else you should also just be able to specify DUID-LL directly:
>>
>> {
>> "hostname": "host",
>> "duid": "03:01:01:02:03:04:05:06",
>> "ip-addresses": [ "fc00::7" ]
>> }
>>
>> I am not sure what exactly is changing in this client's DUID, though.
>> Isn't DUID-LL stable for this client?
>>
>> Kind Regards,
>> Marcin Siodelski
>> ISC
>>
>> On 29.11.2024 09:10, Marek Greško via Kea-users wrote:
>>
>> > Hello,
>> >
>> > I have working kea dhcpv6 setup. I am struggling with one problem. All
>> > my devices get correct IPv6 addresses from reservations by matching
>> > DUID. But one of the devices in the network have changing DUID, only
>> > the DUID-LL part is constant, so I tried to match on DUID-LL. I am
>> > convinced it was working before, but I cannot verify now. Nowadays I
>> > observe the device is getting the IPv6 address from pool. Not from the
>> > reservations.
>> >
>> > My config contains:
>> >
>> > "host-reservation-identifiers": ["duid", "hw-address"],
>> >
>> > and the reservation itself:
>> >
>> > {
>> > "hostname": "host",
>> > "hw-address": "01:02:03:04:05:06",
>> > "ip-addresses": [ "fc00::7" ]
>> > }
>> >
>> > The addresses are example one, not the real. What could be the
>> > problem? I tried to delete the lease from the leases file and restart
>> > the kea, so it is not the lease before reservation problem, but the
>> > lease was again offered from the pool.
>> >
>> > Thanks
>> >
>> > Marek
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