Hi Marek,
You could make the reservation with the hardware (mac) address of the
interface if the hardware address is available to the Kea server via
some means:
"reservations": [
{
"hw-address": "aa:bb:cc:dd:ee:ff",
"ip-address": "2001:db8:ff::77"
},
{
"hw-address": "01:02:03:04:05:06",
"ip-address": "2001:db8:ff::78"
}
]
Thank you,
Darren Ankney
On Sun, Sep 8, 2024 at 7:47 AM Marek Greško via Kea-users
<kea-users@lists.isc.org> wrote:
>
> Thi solves completely different problem. I want two different interfaces of
> the same host in the same vlan to get different statically assigned ipv6
> addresses. So the pair of duid and iaid should be the key to obtain lease
> together. The solution you describe does not guarantee I will obtain
> different ipv6 address. moreover it dos not allow me to specify two such
> interfaces in the config. Currently the kea dies on startup because of
> duplicate duid.
>
> Marek
>
>
>
>
>
> Sent with Proton Mail secure email.
>
> On Saturday, September 7th, 2024 at 13:48, Kevin P. Fleming
> <lists.kea-us...@kevin.km6g.us> wrote:
>
> > There is already an open feature request for reservations to not be stored
> > in the lease database; if this is implemented, after Kea completes the DHCP
> > transaction with the client it will 'forget' about the transaction. If the
> > client then moves to a different subnet, or different interface on the same
> > subnet, Kea will allow the appropriate reservation to be used again because
> > the lease database won't contain an entry for that IP address.
> >
> > On Fri, Sep 6, 2024, at 23:04, Marek Greško via Kea-users wrote:
> >
> > > Hello,
> > >
> > > is there any chance kea will support adding reservation also by IAID
> > > anytime soon?
> > >
> > > Thanks
> > >
> > > Marek
> > >
> > > Sent with Proton Mail secure email.
> > >
> > > On Monday, August 26th, 2024 at 11:46, Darren Ankney
> > > darren.ank...@gmail.com wrote:
> > >
> > > > 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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