Canon LBP7210Cdn Manual page 672

You can also enter IP addresses as follows.
Input example of the IP addresses
AAA.BBB.CCC.15-AAA.BBB.CCC.18
AAA.BBB.CCC.*
NOTE
The specifiable number of characters for the IP address
Up to 255 characters can be set.
The number of characters is counted as follows.
Example: "192.168.0.215" = 13 characters
Example: "192.168.0.215-192.168.0.218" = 27 characters
When deleting a set IP address
(1) Select an IP address you want to delete.
(2) Click [Delete].
Method for entering IP addresses
If you want to enter the IP addresses of consecutive
numbers, place "-" (hyphen) between the address of the
smallest number and that of the largest number.
The example on the left is equivalent to entering addresses
from AAA.BBB.CCC.15 to AAA.BBB.CCC.18.
Entering "*" (asterisk) is equivalent to entering the numbers
from 0 to 255.
The example on the left is equivalent to entering addresses
from AAA.BBB.CCC.0 to AAA.BBB.CCC.255.