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How to efficiently subnet a network

Discussion in 'Networking' started by subnetmask, Feb 14, 2015.

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  1. subnetmask

    subnetmask Thread Starter

    Feb 14, 2015
    I have base ip address This is A class ip address. I need to divide this network into 12 subnets, and I need at least 80 computers in one network. Please explain how to calculate correctly subnets. I understand that subnets count should be power of two, so the nearest is 16. But I don't understand what should I do next. Please explain. I have spent day trying to understand this.Thanks.
  2. Courtneyc


    Dec 6, 2003
    I am really confused. If your IP address is, that means your network is The means that each /16 has 65534 addresses, and you have 255 of those.

    Read this if you are confused.
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