strange DHCP range on a vlan static

[dissidence]

i am trying to configure the DHCP service for a vlan, but when i go to input the ip range this is what it is giving me for an available  range

Available range    192.168.16.2 - 192.168.16.0

the base ip i have given it is 192.168.*.1 i have tried it with a few different numbers all with the same strange issue.

[packet loss]

Set your base IP to 192.168.16.1/24 instead of 192.168.16.1/32

[dissidence]

thanks, i will heave to read up on that.