Appendix I - Cipafilter Documentation

Manual - Appendix I: Dot notation to CIDR notation translation table

The following table shows how to convert common dot-notation subnet masks to CIDR-notation subnet bits.

As an example: The subnet mask , when applied to , will cover the addresses .  To refer to this same range of addresses in CIDR notation, use .  To refer to the single IP address , use .

Subnet mask
Subnet bits
Number of IP addresses

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