10 lines
651 B
Plaintext
10 lines
651 B
Plaintext
This module allows you to check an IP address against one or more IP ranges.
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It employs Perl's highly optimized regular expression engine to do the hard
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work, so it is very fast. It is optimized for speed by doing the match
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against a regexp which implicitly checks the broadest IP ranges first. An
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advantage is that the regexp can be computed and stored in advance (in source
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code, in a database table, etc) and reused, saving much time if the IP ranges
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don't change too often. The match can optionally report a value (e.g. a
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network name) instead of just a boolean, which makes module useful for
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mapping IP ranges to names or codes or anything else.
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