Hawking Technology PS12U - Manual (Page 12)

4. In the Subnet Mask option, type the Subnet Mask your LAN
or network segment is currently configured to use.
5. (Optional) In the Gateway field, type the IP address of your
LAN’s gateway.
6. When done, click the OK button. The program will save the
above settings into the print server’s memory.
7. Congratulations! You have successfully configured your
PS12U!