Itnw1316: calculating a subnet mask

Case Project 9-2: Calculating a Subnet Mask

These case projects use the information found in the lesson chapters. You should take care to:

  • Answer in complete sentences using proper grammar and spelling.
  • Remember to identify and cite your sources.
  • Be thorough in your research and response.

You’re the network administrator for a growing ISP. One of the networks the IANA assigned to you is You have decided to use the address to satisfy the requirements of 16 corporate customers, each needing between 10 and 14 public addresses. Without using a subnet calculator, calculate a subnet mask that meets the requirements. In the following chart, write the subnet mask along with the 16 subnetworks in CIDR notation, and list the range of host addresses each subnetwork will have available:

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