Article

Variable-length Subnet Masks

Mark Sportack

Managing an IP address space requires a solid command of binary mathematics, particularly as it is applied within the IP addressing architecture. The mathematics of the IP address space, however, are not intuitive and can be very difficult to grasp. This chapter of "IP Addressing Fundamentals" by Mark Sportack introduces a sample network and explains the challenges of managing an address space

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subnetted into flexibly-sized subnets.

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