How to Novell DHCP and dhcrelay

Hey, people.

I'm faced with the need to consolidate the DHCP services for several IP domains into a single DHCP server. The domains are connected together via a SLES11.1 box, and I have ISC's dhcrelay installed but not yet activated. Having zero experience with DHCP/BOOTP relays, I have no clue as to where to go from here. Could someone toss me one?

Thanks.