18 lines
943 B
Plaintext
18 lines
943 B
Plaintext
This is the README for cidr, a program to calculate CIDR network and broadcast
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addresses for a given IP and mask. I wrote this primarily to aid myself
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in reconfiguring my home LAN, where I often change IP addresses and subnet
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ranges, because I find it difficult to remember the appropriate network
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and broadcast address for a given /N subnet. The proper addresses are
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found in the subnet tables in RFC 1878.
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The program takes an IP and netmask and outputs the network address,
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broadcast address, and total number of addresses for the corresponding
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subnet. The IP address can be in binary, decimal, hexadecimal, or
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dotted-quad form, and the mask can be in binary, decimal, hex, dotted-quad,
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or prefix. I decided to have the program accept those forms of input
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primarily as a learning tool, since I thought it would be interesting to
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see how bitwise changes in an IP address affect the dotted-quad form of
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that address.
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WWW: ${HOMEPAGE}
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