Have a pool created with 2 separate address ranges configured

The server has an address of 113.100
It does Not have a 124 address bound the the same physical nic
Everyhting is on the same physical segment..No routers
Dhcp seems to still only want to service the 113 subnet and does not
start handing out 124 addresses when 113 addresses are gone.

Do I need to have a secondary ip address in the 124 range bound to the
servers nic for this to work and if not how can we further troubleshoot
the configuration.