10.6. Internet addressing
If you want your machines to communicate with each other across the TCP/IP network, you must give them unique IP addresses. Each host is assigned a unique 32-bit logical address (in the case of IPv4) that is divided into two main parts: the network number and the host number. The network number identifies a logical network to which the host belongs and must be the same across the subnet. The host number identifies a host on the specific logical network.
10.6.1. IP address format
The IP address is the 32-bit address, grouped eight bits at a time, separated by dots and represented in decimal format called dotted decimal notation. Each bit in the octet has a binary weight (128, 64, 32, 16, 8, 4, 2, 1). The minimum value ...
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