[Kea-users] Option Class-Tagging Configuration

[Darren Ankney]

Hi Isaac,

I have not yet experimented with the new "option class-tagging"
feature, but I can guess that what is happening to you here is that
the same name in the second option is causing the first option's data
to be overwritten.  Perhaps try using the code for one of them instead
of the name (not 100% sure that is a valid workaround).  The  code for
'boot-file-name' seems to be 67.  So replace "name": "boot-file-name"
with "code": 67 in one of them perhaps?

Thank you,
Darren Ankney

On Tue, Jan 14, 2025 at 2:20 PM Isaac Brummel <ibrummel at xes-inc.com> wrote:
>
> Hello,
>
> I'm trying to use the new "option class-tagging" feature from 2.7.4 to dynamically set boot-file-name to a different value for every subnet. I'm running into an issue where if I have two entries in the "option-data" one for legacy ipxe and one for EFI ipxe none get set, see the below config for an example. If I only set one such as only having the "ipxe_legacy" client class then it correctly sends the boot-file-name. Is there something I'm missing, or a better way to handle this?
>
> "client-classes": [
>     {
>         "name": "ipxe_legacy",
>         "test": "substring(option[60].hex,0,20) == 'PXEClient:Arch:00000'"
>     },
>     {
>         "name": "ipxe_efi",
>         "test": "substring(option[60].hex,0,20) == 'PXEClient:Arch:00007'"
>     }
> ],
> "subnet4": [
>     {
>         "id": 1,
>         "subnet": "10.10.10.0/24",
>         "calculate-tee-times": true,
>         "valid-lifetime": 60,
>         "ddns-qualifying-suffix": "kea-dev.com",
>         "client-classes": [],
>         "option-data": [],
>         "pools": [
>             {
>                 "pool": "10.10.10.100 - 10.10.10.150",
>                 "option-data": [
>                     {
>                         "client-classes": [
>                             "ipxe_legacy"
>                         ],
>                         "name": "boot-file-name",
>                         "data": "ipxe/netboot.xyz.kpxe"
>                     },
>                     {
>                         "client-classes": [
>                             "ipxe_efi"
>                         ],
>                         "name": "boot-file-name",
>                         "data": "ipxe/netboot.xyz.efi"
>                     },
>                     {
>                         "name": "routers",
>                         "data": "10.10.10.1"
>                     },
>                     {
>                         "name": "domain-name-servers",
>                         "data": "10.10.10.1, 10.10.10.2"
>                     }
>                 ]
>             }
>         ]
>     }
> ]
>
> Thanks,
>
> Isaac Brummel
> System Administrator
> Extreme Engineering Solutions
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