How to Choose IP Range

Networked computers connect to a router using a range of IP addresses. Choose your range with these tips.

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You Will Need

  • Computer network

Steps

  1. Step 1

    Know the ranges

    Learn the three IP ranges: 192.168.0.0 to 192.168.255.255, 172.16.0.0 to 172.31.255.255, and 10.0.0.0 to 10.255.255.255.

  2. Don't use the 172.16 range, as it is hardly ever used and could cause problems along the way.

  3. Step 2

    Identify network size

    Decide how large and complex your network is. A large network is more than 200 computers, and is likely to grow and branch off into multiple networks. A small network is fewer than 200 computers.

  4. Step 3

    Choose the small range

    Choose the 192.168 range for small networks. This option will give you 256 IP Addresses.

  5. Step 4

    Use 10 for the large range

    Use the 10.0.0.0 range for large networks.

  6. Step 5

    Avoid common ranges

    Avoid using common ranges such as 10.0.0.0 to 10.0.0.255, 192.168.000 to 192.168.0.255, and 192.168.1.0 to 192.168.1.255. A common range makes it easier for a hacker to break into the network.

  7. Because of the number of digits in IP addresses, there are around four billion individual IP address possibilities, and they are rapidly running out.

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