Only if they were on a different network.
here is an example of a working setup:
DHCP Scope 192.168.1.51 - 192.168.1.100
DHCP Mask 255.255.255.0
DHCP 003 (Router) 192.168.1.1
DHCP 006 (DNS Server) 192.168.1.21
The DNS server is, in this case, also the DHCP server. The DHCP server has it's NIC setup manually as follows:
IP 192.168.1.21
Mask 255.255.255.0
Gateway 192.168.1.1
DNS 192.168.1.21
A mask of 255.255.255.0 and IP range of 192.168.1.x means that the NETWORK is 192.168.1.1 to 192.168.1.254.
The SCOPE is 192.168.1.51 to 192.168.1.100 in the same NETWORK because the mask/IP is the same.
I'm not sure I explained that very well but it's the way IP works. if you want to learn more do a google for subnetting - you'll get bored quick