You have to have a router to put between the two (150 & 152) segments,...I
mean a *real* router, not some Internet Sharing NAT Device. The Router is
then configured to forward the DHCP queries to the DHCP Server, I mean
"truely" forward, not some kind of NAT Publishing function. This is a
normal function of "real" routers,..so if you have a "real" router it will
do this.
On the DHCP you just create another separate Scope for the 152 addresses.
That's it.
It is unfortuneate that I have to emphisize what I mean by "router", but the
SOHO market with the Cable/DSL NAT Devices that they call "routers" has so
corrupted the dictionary that nobody knows the true definition of terms
anymore. Those Cable/DSL boxes functionally do the same task as a $3000
PIX, Watchgaurd, or Checkpoint firewalls but they just have less features.
Yet they call them routers but the more expensive ones are called NAT
Firewalls. The truth is they are all NAT Devices, and not routers. Routers
are what you put between LAN segments or on the end of Point-to-Point WAN
links. Most routers can be configured to run NAT as an additional feature,
but that isn't thier primary purpose.