Canon LBP7210Cdn Manual page 560

Select the port type.
(1) Select [Standard TCP/IP Port].
(2) Click [New Port].
Click [Next].
Enter the new IP address or name of the printer.
(1) Enter the IP address or name
*
of the new printer in [Printer Name or IP Address].
* The DNS name to be registered on the DNS server (up to 78 characters)
(2) Click [Next].