Greg Niland, aka GoodROI, who has been in the SEO community for ages, said on WebmasterWorld that he just tested the old fashion question around how important having links from different c-blocks, ...

Let's say I want to divide my Class C network into two subnets. With IP Network Calculator, I can move the slider to make the CIDR /25. This breaks my network into two subnets and the app will show me ...