Aliases - best practice for multiple host subnets

[DennisT]

I want to block several subnets so I set up a alias.  When I add a network such as
5.101.40.0/24
The GUI translates that to single addresses instead of a subnet.  This works, but after a few subnets the list of addresses in the alias starts getting pretty long.  Is there a better way I should be approaching this?  One subnet per alias and then use a "master" alias?  Is there a limit to how many individual addresses I should use per alias?

[johnpoz]

huh? Where are you seeing that as single address an not a network?

[DennisT]

Thanks for the screenshot.  I didn't realize I could set it to networks.  I had it set to hosts and when I would enter a subnet EG 5.101.40.0/24, it would expand that to 5.101.40.24, 5.101.40.0, 5.101.40.1, etc with 5.101.40.24 showing twice.

The 24 address twicw is probably a bug but I now understand what it was doing and a much better way to manage subnets.

[johnpoz]

Not sure what you mean by 24 twice?  But when you pick hosts it states that if you put IPs in via a range or mask that they will be expanded

"An IP range such as 192.168.1.1-192.168.1.10 or a small subnet such as 192.168.1.16/28 may also be entered and a list of individual IP addresses will be generated."