Hi Marek,

You might be right.  I do not know.  I think yes, if you need to have
separate reservations for the two different interfaces, then you'd
have to specify separate subnets.  Is there any particular reason that
the client cannot obtain the same IP regardless of the interface that
is connected (surely you are not connecting both interfaces
simultaneously)?

Thank you,
Darren Ankney

On Sun, Aug 25, 2024 at 6:38 AM Marek Greško via Kea-users
<kea-users@lists.isc.org> wrote:
>
> I am pretty convinced the ISC DHCPD was able to do it. So the only way to 
> workaround the problem is to create separate vlan for cable connection?
>
> Marek
>
>
>
>
>
> Sent with Proton Mail secure email.
>
> On Sunday, August 25th, 2024 at 11:40, Darren Ankney 
> <darren.ank...@gmail.com> wrote:
>
> > Hello Marek,
> >
> > I do not believe there is a way to assign a reservation to an IAID. I
> > also cannot think of a way to use multiple keys for a reservation.
> >
> > Thank you,
> > Darren Ankney
> >
> > On Sat, Aug 24, 2024 at 11:59 AM Marek Greško via Kea-users
> > kea-users@lists.isc.org wrote:
> >
> > > Hello,
> > >
> > > yes I understand that perfectly what DUID and IAID is. But what is IAID 
> > > for, when I cannot match on it? I suspect it is kea limitation, not 
> > > dhcp6. Am I right?
> > >
> > > I would expect having machine with DUID A and IAIDs I1 and I2 having 
> > > reservations for (A,I1)=>addr1 and (A,I2)=>addr2 to both interfaces 
> > > receive the correct IPv6 address by respective reservations. Currently I 
> > > even cannot start kea-dhcp6 when creating such reservations since kea 
> > > complains about duplicate DUID.
> > >
> > > I just found out that there is also one fault on my side. When I migrated 
> > > to kea I migrated also the script generating the configuration file from 
> > > the table. And since I did not found a way to specify IAID I commented 
> > > this part and I forgot about it. But I still do not know what is the name 
> > > of the IAID in kea. I suspect kea does not support matching on IAIDs. Or 
> > > does it? If yes what is the name of the option in the reservation?
> > >
> > > Thanks
> > >
> > > Marek
> > >
> > > Sent with Proton Mail secure email.
> > >
> > > On Friday, August 23rd, 2024 at 7:19, Marek Greško via Kea-users 
> > > kea-users@lists.isc.org wrote:
> > >
> > > > Hello,
> > > >
> > > > is it a limitation of kea or of the dhcp6 protocol? What is IAID then 
> > > > for? The IAIDs are different.
> > > >
> > > > If I add hwaddress as a key, I suspect it is not real harware address 
> > > > but rather some hw-address part from the DUID so it is the same for all 
> > > > interfaces. Am I right?
> > > >
> > > > So it seems I will have to create new vlan with the same purpose. What 
> > > > I would like to achieve is to have the host to be able to connect using 
> > > > either the cable or wifi. Both have the reservation (different ipv6 
> > > > address).
> > > >
> > > > Thanks
> > > >
> > > > Marek
> > > >
> > > > Sent with Proton Mail secure email.
> > > >
> > > > On Friday, August 23rd, 2024 at 2:29, Darren Ankney 
> > > > darren.ank...@gmail.com wrote:
> > > >
> > > > > Hi Marek,
> > > > >
> > > > > I do not think you are going to be able to have two reservations for
> > > > > the same DUID in the same subnet or shared-network. You might be able
> > > > > to set one for DUID and the other for hw-address if that is available
> > > > > to Kea, however.
> > > > >
> > > > > Thank you,
> > > > > Darren Ankney
> > > > >
> > > > > On Thu, Aug 22, 2024 at 8:22 AM Marek Greško via Kea-users
> > > > > kea-users@lists.isc.org wrote:
> > > > >
> > > > > > Hello,
> > > > > >
> > > > > > sorry, probably different problem here:
> > > > > >
> > > > > > I just realized, in the second vlan I have another definition for 
> > > > > > different interface of the host (same DUID, but different IAID). 
> > > > > > Probably the conflict it this one.
> > > > > >
> > > > > > Is it possible to have these two enrties? I would need it.
> > > > > >
> > > > > > Thanks
> > > > > >
> > > > > > Marek
> > > > > >
> > > > > > On Thursday, August 22nd, 2024 at 14:17, Marek Greško via Kea-users 
> > > > > > kea-users@lists.isc.org wrote:
> > > > > >
> > > > > > Hello,
> > > > > >
> > > > > > I am running a kea-2.6.1 server. I want one of the hosts to be 
> > > > > > roaming, i. e. to be able to connect by the network cable to two 
> > > > > > different vlans by selecting the plug.
> > > > > >
> > > > > > I am able to setup it for ipv4, but for ipv6 I get error: failed to 
> > > > > > add new host using the D
> > > > > > UID ...... to the IPv6 subnet id <my id> as this host has already 
> > > > > > been added. The DUID and IAID is the same as for the same host in 
> > > > > > different subnet.
> > > > > >
> > > > > > I tried to set "early-global-reservations-lookup": false, but it 
> > > > > > had not help much.
> > > > > >
> > > > > > How can I achieve this goal? I would expect reservations table are 
> > > > > > independent for different subnets.
> > > > > >
> > > > > > Thanks
> > > > > >
> > > > > > Marek
> > > > > >
> > > > > > --
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