Check if IP is within range

[Kevin Whitman]

Not sure where's the best place is to ask. Does anyone know of a function or module that will check if a IP address is within a IPv4 range, also with IPv6 support. Say it would get a list like 

var IPV4 = ['204.93.240.0/24', '204.93.177.0/24', etc...];

var IPv6 = ['2400:cb00::/32', 2606:4700::/32, etc...];

Any ideas?

[Matt]

iptrie - is very fast but the documentation is a bit weak. https://github.com/postwait/node-iptrie

I'm pretty sure it supports IPv6 based on the source, even if the docs don't mention it.

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[Kevin Whitman]

Over the past few hours I've hacked up a solution.  https://github.com/keverw/range_check