Konica Minolta bizhub C25 Reference Manual page 466

IP Address Filtering
The [Network] - [TCP/IP] - [IP Address Filtering] page allows you to specify
the IP address and limitations for accessing the printer.
d
The settings described below are not applied to the DNS server and
DHCP server.
d
If the range of permitted IP addresses in [Access Permission Address]
overlaps the range of refused IP address in [Access Refuse Address],
the refuse setting of [Access Refuse Address] is given priority.
Configuring the Printer 9-183