A simple python-based command-line utility to expand CIDRs or wrangle a list of IPs back to its smallest CIDR blocks possible
A simple python-based command-line utility to expand CIDRs or wrangle a list of IPs back to its smallest CIDR blocks possible.
ipwrangle is installed as two command-line utility accessible as
ipexpand from the command-line.
You can use it them to convert a CIDR notation into the list of IP addresses contained in the block or reduce a list of IP addresses into its smallest CIDR blocks possible.
An example of expansion:
-$ ipexpand 192.0.2.0/24 | head -n10 192.0.2.0 192.0.2.1 192.0.2.2 192.0.2.3 192.0.2.4 192.0.2.5 192.0.2.6 192.0.2.7 192.0.2.8 192.0.2.9
-$ ipexpand 192.0.2.0/24 | head -n10 | ipreduce 192.0.2.0/29 192.0.2.8/31
Both tools accept commandline arguments (multiple entries split with a comma) or over stdin as multiline.
Feel free to report issues, I build this tool simply because I couldn't find one that did exactly this.
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