If you want special treatment for some clients, you need to be
able to identify them. Either they can all supply a parameter in
their DHCP request -- if you control their configuration, this
is reasonable -- or you need to maintain a list of MAC
addresses.
// Here is the list of MAC addresses, assigning a class:
subclass "allocation-class-1" 1:8:0:2b:4c:39:ad;
subclass "allocation-class-1" 1:8:0:2b:a9:cc:e3;
subclass "allocation-class-1" 1:0:0:c4:aa:29:44;
...
...
...
subclass "allocation-class-1" 1:0:0:c2:aa:23:4a;
// and here is how they are treated differently:
subnet 10.0.0.0 netmask 255.255.255.0 {
pool {
allow members of "allocation-class-1";
deny unknown-clients;
range 10.0.0.11 10.0.0.50;
}
pool {
allow unknown-clients;
range 10.0.0.51 10.0.0.100;
}
}
Or they can go to different subnets instead of pools of
the same one.
I recommend putting the class definitions in one or more
include files, with comments about human-identifiable info.
If you have a database system that tracks things like this,
it's a good idea to have it produce these include files
for you every hour or day or whatever matches your needs.
-dsr-