[Kea-users] subclass handling in kea-dhcp

[Veronique Lefebure]

Hi,

We have something that looks like the following. Hope it helps.
Cheers,
Veronique

{
  "Dhcp4": {
    ...
    "client-classes": [
      {
        "name": "blocked-list",
        "test": "(pkt4.mac == 0x0XXXXXXXXXXXX or pkt4.mac == 0xXXXXXXXXXXX or ....)",
      },
      {
        "name": "OkClients",
        "test": "not member('blocked-list')"
      },

...

 "pools": [
              {
                "client-class": "Okclients",
                "pool": "xxx.xxx.xxx.1-xxx.xxx.xxx.2"
              }
            ],

________________________________
From: Kea-users <kea-users-bounces at lists.isc.org> on behalf of Kraishak Mahtha <kraishak.edu at gmail.com>
Sent: Wednesday, December 14, 2022 3:30 PM
To: kea-users at lists.isc.org <kea-users at lists.isc.org>
Subject: [Kea-users] subclass handling in kea-dhcp

Hi All,

I am looking for the equivalent option of ISC dhcp subclass in kea-dhcp4 but I couldn't find any, I have a case where I need to decline dhcp-lease grants to given specific mac addresses so trying to match the same in kea-version but I  couldn't find any sub-class equivalent, can we add the specific data (here mac address as the members of the specific class) in kea

MY ISC DHCP config
class "denyClients" {
         match substring (hardware, 1, 6);
         deny booting;
}
subclass "denyClients" 11:22:33:44:ab:66;
subclass "denyClients" 11:22:33:43:ab:66;
subclass "denyClients" 11:22:33:42:ab:66;
subnet 12.0.0.0 netmask 255.255.255.0 {
pool {
failover peer "Test";
range 12.0.0.2 12.0.0.2;
deny members of "denyClients";
}
default-lease-time 3600;
 option routers 12.0.0.1;
 option subnet-mask 255.255.255.0;
}


Can anyone please advise or suggest how to add members to the DHCP class or the data for which the class should be applied

Thanks in Advance
Kraishak



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