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grepcidr - Filter IPv4 and IPv6 addresses matching CIDR patterns

Description:

grepcidr can be used to filter a list of IP addresses against one or more
Classless Inter-Domain Routing (CIDR) specifications. As with grep, there are
options to invert matching and load patterns from a file. grepcidr is capable
of efficiently processing large numbers of IPs and networks.

grepcidr has endless uses in network software, including: mail filtering and
processing, network security, log analysis, and many custom applications.

For detailed instructions and examples, please see the README file or man page.
A couple examples of usage:

  grepcidr 2001:db8::/32 logfile
  grepcidr 66.249.64.0/19 access.log

Packages

- initial packaging

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