Unicast IP Addresses
Each network interface on which TCP/IP is active must be identified by a unique, logical unicast IP address. The unicast IP address is a logical address because it is an Internet Layer address that has no direct relation to the address being used at the Network Interface Layer. For example, the unicast IP address assigned to a host on an Ethernet network has no relation to the 48-bit MAC address used by the Ethernet network adapter.
The unicast IP address is an internetwork address for IP nodes that contains a subnet prefix and a host ID.
The subnet prefix (also known as a network address or network identifier) identifies the nodes that are located on the same logical network. In most cases, a logical network is the same as ...
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