Re:shared-network (Score 1)

Why do you need two different subnets served by DHCP? Keep in mind that DHCP clients can't specify which subnet it needs an address from. If you have the shared server handing out addresses from 10.0.0.0/24 and 10.1.0.0/24, you'll end up with clients randomly assigned from both subnets. (I'm not sure if DHCPd will serve out of one network until it's exhausted, or round robin.) If your problem is that the original subnet is too small and you're unable to simply subtract a bit from your subnet mask due to other routing constraints, this will fix it. But keep in mind that one machine will have to be routed to another machine on the same LAN via the router. If you're trying to keep two discrete networks on the same LAN with some sort of order as to which machine is in which, you can't do it this way. (dhcp helper addresses are how you configure multiple subnets to be served from a single server, but this isn't going to work when the DHCP server is on the same segment as your multiple subnets.)