I get the basic idea with Netware's DHCP and subnets/pools etc
and the use of iphelper on the routers...

Also,, The way I understand it is that you can/should add a secondary
IP address to the DHCP server for each of the external locations that
you want the DHCP server to handle..

Example;

Internetal network /DHCPsrvr
192.168.123.10

Ext lan 1
range 192.168.124.0

Ext lan 2
range 192.168.125.0


That would mean adding 192.168.123.11 and 192.168.123.12
and on ext lan 1 point to 192.168.123.11
and on ext lan 2 point to 192.168.123.12


So far so good ( at least,, I think...)

My concern, or rather, problem in understanding is;
How will the local segment clients get DHCP only from the primary IP
address ? 192.168.123.10 ?