Firewall: How to block ip range?

[guest35930]

I need a guide or tutorial about how to block ip range 190.0.0.0 and all the ips regarding 190.x.x.x ...
how can i do it? tried to google it and youtube it and found no answers (found only block 1 one ip , and i need ALL the whole range) how can i do it? thank you

[Demusman]

Use an alias for the whole range.

[guest35930]

what should i write here?

https://prnt.sc/uFQs3EWMMlIS

and what do i select here in this dropdown?

https://prnt.sc/iOutJrnNYNE3

i need to block all the 190.x.x.x to  190.999.999.999 or i do not know how it should be i am a newbie a noob and i do not know anything about networks so that is why im trying to ask help from the experts

[zan]

Select 'Network(s)' for type then '190.0.0.0/8' for content
You can then create a block rule on the interface with that alias as source (or destination, depends on which direction you want to block)