As
DHCP works primarily via
network
broadcasts, it will only work if both
the
client and the
server is located
on the same network
segment. Unless
you have a Relay Agent set up, that is.
A DHCP Relay Agent is a small server that
resides on one of the hosts (or directly
on the router) on the
client's segment, listening for DHCP
requests, and forwarding them transparently
to the DHCP server on the other LAN.
Since the different LANs have their own series of
IP addresses, the DHCP server needs to be
set up with a separate scope for each LAN
served.