Manually blacklist Public IPs and range of Public IPs

[atux_null]

Hi. i am doing my first steps with OPNsense and i have it in a PC with multiple NICs.
I would like to manually add block access to some Public IPs, single and range of them. eg:

• 1.1.1.1
• 1.1.1.2
  
• 8.8.8.0/24
  

Could someone help me with the rule setup please?

[smyers119]

Firewall --> Alias's --> Type: Network(s)

Format:

Single IP: 192.168.1.1/32

Network: 192.168.1.0/24