Oki B412dn User Manual - page 558
Note
If IP filtering is set to [Enable], access from a host with any IP address other than the ranges that are set in [STEP2] is not
allowed.
6.
Set an IP address range in [STEP2. Set IP Address range.].
Note
Enter a range of hosts that are allowed to print or set by using IP addresses.
Use one-byte numbers that are separated with "." to specify an IP address.
If you enter 0.0.0.0 for an IP address, the IP Filtering function is disabled.
If IP address ranges overlap, the address range with the higher [Priority] is given priority.
Regardless of the specifications in [STEP2], you can set the addresses of the administrators who are allowed to print or set
in [STEP3].
7.
Click [Address Range Bar Display/Refresh].
To correct an IP address range, enter corresponding IP addresses, and then click [Address Range Bar Display/Refresh] again.
8.
Set the [Administrator's IP Address setting] value in [STEP3. Save Administrator IP Address.].
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