NetDivide ​

I created a simple subnet segmentation tool utilizing public libraries in order to help myself and others properly segmenting down subnets and stop wasting large amounts of IPv4 addresses causing conflicts within large inter-connected msp networks.

Don't be lazy in your subnetting, in large environments IPv4 addresses are a finite resource which needs to be used relatively sparingly, review the expected use of the subnet and allocate appropriate masks.

Try out NetDivide yourself.