!help !cidr4

!cidr4
Validate and Analyze an IPv4 Network Address Block in CIDR notation.
!cidr4 192.168.1.0/25
!cidr4 0.0.0.0/0
!cidr4 172.16.0.0/24
!cidr4 224.0.0.0/24

  
     
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       __/|DUHUD|\___