DHCP and several routers problem

Hi,


Since several days I've been trying to set up DHCP server in below
configuration
<----->(192.168.49.10/255.255.255.0)main_router+DHCPD(10.10.10.100)

<----->(10.10.10.1/255.255.255.0)router1(10.10.1.1/255.255.255.0)<---->clien
ts

<----->(10.10.10.2/255.255.255.0)router2(10.10.2.1/255.255.255.0)<---->clien
ts

<----->(10.10.10.3/255.255.255.0)router3(10.10.3.1/255.255.255.0)<---->clien
ts

On router1-3 I had to configure DHCRelay.When the client sends request to
DHCPD it going through DHCRelay and next to DHCPD. Problem is that I don't
really know how to turn off broadcasting on router1-3 which couses bad IP
leases - e.g client from subnet 10.10.2.0 gets IP from 10.10.3.0.

On dhcp-server mailing list one of the guy said that this is problem with
forwarding broadcast traffic on routers1-3.

Thanks,
Marcin