We have 65 IP subnets and on all of them we need to hand out common
information to all DHCP clients. To do this we have used the global
preferences section.

We are setting up a few wireless access points that will use a VPN to allow
them onto the network but we do not want to hand out the commin information
in the global preferences to these wireless machines.

Is there a global preference over-ride or can you make dummy entries in the
individual subnet options to over write the global options ?

I am not too keen to move the global settings to each of the 65 subnets...