Dhcpd.conf classes question

[alexandrud]

Hi,

This is the chunck of config that I'm having trouble with:

class "sysadm" {
        match pick-first-value (option dhcp-client-identifier, hardware);
        lease limit 2;
       }
subclass "sysadm" 00:0d:56:b8:2d:6c; # Dell ethernet
subclass "sysadm" 00:90:96:b8:5f:9d; # Dell wireless
>>>>>>>>>>>>>>>>>>Other stuff <<<<<<<<<<<<<<<<<
subnet 192.168.6.0 netmask 255.255.255.0 {
        option subnet-mask 255.255.255.0;
        option broadcast-address 192.168.6.255;
        option routers 192.168.6.1;
        
        pool {
                allow members of "sysadm";
                range 192.168.6.240 192.168.6.241;
        }
}

Basicly what I want to achieve is a class with the matching done on the mac adresses that I can use throughout several subnets for pools of IPs. This will significantly simplify the maintenance because if a new mac must be put in I write it in the class and then I use that class in all the 5 or 6 subnet declarations I have.

The dhcpd daemon starts with no errors but I get a "NO free leases" message in the logs. I suspect that the matching doesn't occur because if I use a range without restrictions it gives a lease imediatly. Any ideea?

[alexandrud]

Ok... so I did some more googeling afterwards...
It works with the following config:

class "sysadm" {
        match option dhcp-client-identifier;
        lease limit 2;
       }
subclass "sysadm" 1:00:0d:56:b8:2d:6c; # Dell ethernet
subclass "sysadm" 1:00:90:96:b8:5f:9d; # Dell wireless
>>>>>>>>>>>>>>>>>>Other stuff <<<<<<<<<<<<<<<<<
subnet 192.168.6.0 netmask 255.255.255.0 {
        option subnet-mask 255.255.255.0;
        option broadcast-address 192.168.6.255;
        option routers 192.168.6.1;
        
        pool {
                allow members of "sysadm";
                range 192.168.6.240 192.168.6.241;
        }
}

Notice the "1" in front of the mac addresses in the subclass declarations. That stands for ethernet I guess.