What is an IP address?
An IP address is a 32-bit address that identifies a device uniquely in an IPv4 network. Each device connected to the Internet must have an IP address. If the device is connected to an IPv4 network, we use an IPv4 address and if the device is connected to an IPv6 network, we use an IPv6 address.
IP Address Format
An IPv4 address is 32-bit long. This 32-bit address is divided into four groups of 8-bit each. The binary number in each group is then converted into a decimal number. Thus, we get four decimal numbers. These four decimal numbers are then separated with dots.
For example, if a 32-bit long binary address is 00000001 00000010 00000011 00000100, then we first divide the address into four groups and convert the binary number in each group into a decimal number. Thus, we get 1, 2, 3, and 4 in this case. Now, we write these numbers separating with dots. And, thus, 1.2.3.4 is the representation of the corresponding IP address. We call this representation a dotted-decimal representation of IP addresses.
In this article, we would discuss:
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What is an IP address?
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IP Address Format
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Classful IP Addressing
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Class A IP Address
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Class B IP Address
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Class C IP Address
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Class D IP Address
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Class E IP Address
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Network Masks and Subnets
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Classless Inter-Domain Routing (CIDR)
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