IPv4 range (start & finish) to slash notation

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Parag Baxi

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Jul 14, 2011, 1:25:13 PM7/14/11
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Is it possible to use ipaddr to convert a starting and ending IP
address to a slash notation?

Example:
Input = 10.182.71.0-10.182.75.255
Output = 10.182.71.0/24, 10.182.72.0/22

Matthew Flanagan

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Jul 15, 2011, 2:25:54 AM7/15/11
to ipaddr-py-dev
Hi Parag,

Yes this is very easy to do:

>>> from ipaddr import IPAddress, summarize_address_range
>>> summarize_address_range(IPAddress('10.182.71.0'), IPAddress('10.182.75.255'))
[IPv4Network('10.182.71.0/24'), IPv4Network('10.182.72.0/22')]


It works for IPv6 as well.

cheers

Matthew
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