Wildcard Mask Converter

Convert between CIDR notation, subnet masks, and wildcard masks with ACL rule generation

IP Addresses, CIDRs, or Ranges

Enter one per line: CIDR (192.168.1.0/24), network + subnet mask (10.0.0.0 255.255.255.0), or network + wildcard mask (172.16.0.0 0.0.255.255)

Generate ACL Rules