If all of my workstations are on the same subnet, say 192.168.6 and I want to deploy the agent only to workstations with - 30. What IP address logical expressions need to be defined?

I get that if you select IP address and "Starts with" then give the first three octates (134.67.6) that the ruleset will apply to all the IP addresses in the 4th octate.

I am not sure what expressions need to be defined so to limit it to the 10 addresses as stated above.

Can anyone help me out with this?