w2k3 – dhcp resilience ?

Hi – I have 2 x DC/DHCP/DNS servers on small network (50 clients) – ran up DNS with Primary/secondary setup – pretty standard stuff. 1st time resilient DHCP though – running 2 x DHCP on DCs with separate scope as per Microsoft recommendations but DNS/DHCP gets confused sometimes – I get 2 x DHCP leases (1 per DHCP server) for the same clients (4 out of the 50) and I am note sure if this will bite me at some point.

Seeking advice…

Thanks

Tom