Hi,
Option 150 (as Cisco proprietary option) is not supported in IPAM so far. IPAM supports standard (common for all DHCP vendors) DHCP options since IPAM 4.2. What if you use options 66/67 as a workaround?
We are tracking option 150 as a feature request. however it could be added to the new version of IPAM only, not back to IPAM 3.1
