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using split() fails if you request more than 32 networks #40

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neoice opened this issue May 30, 2014 · 2 comments · Fixed by #61
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using split() fails if you request more than 32 networks #40

neoice opened this issue May 30, 2014 · 2 comments · Fixed by #61
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@mikemackintosh

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@neoice
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neoice commented May 30, 2014

a Class B network, like "10.13.0.0/16" contains 256 Class C networks [1]. consider the example code:

require 'ipaddress'
x = IPAddress('10.13.0.0/16')
c_class_count = (x.hosts.length / 256) + 1
x.split(c_class_count)

this results in the following error:

ArgumentError: New prefix must be between 16 and 32
from PATH/vendor/cache/ruby/1.9.1/gems/ipaddress-0.8.0/lib/ipaddress/ipv4.rb:684:in `subnet'

I also used "10.0.0.0/8" and reproduced the same behavior.

[1] http://en.wikipedia.org/wiki/Classless_Inter-Domain_Routing#IPv4_CIDR_blocks
@bluemonk
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bluemonk commented Jun 1, 2014

Thanks for filing up this bug. Looks quite strange. I'll dig into it.

@bluemonk bluemonk mentioned this issue Mar 20, 2015
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mikemackintosh added a commit to mikemackintosh/ipaddress that referenced this issue Mar 23, 2015
@mikemackintosh
added #to range and fixed ipaddress-gem#40
6bf73cf
mikemackintosh added a commit to mikemackintosh/ipaddress that referenced this issue Mar 23, 2015
@mikemackintosh
fixed issue ipaddress-gem#40, and added IPv4#to() range method
72260e9
@mikemackintosh mikemackintosh mentioned this issue Mar 23, 2015
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@mikemackintosh mikemackintosh self-assigned this Mar 24, 2015
@mikemackintosh
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This has been included here - #61

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Version 0.8.2 mikemackintosh/ipaddress
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@neoice @bluemonk @mikemackintosh