From the course: Cisco Networking Foundations: IP Addressing

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Converting from binary to decimal

Converting from binary to decimal

From the course: Cisco Networking Foundations: IP Addressing

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Converting from binary to decimal

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- [Instructor] As we're working with IP version 4 addresses, it's critical that we understand binary numbering. And in this chapter, we're going to learn how to do subnetting, we'll learn how to convert between decimal numbers and binary and binary into decimal. Consider for example this IP version 4 address, 10.1.2.3. Notice, we have four decimal numbers, each separated by a dot. We call this dotted decimal notation. And we're going to learn in our next video how to take a number like 10 and convert that into its corresponding binary number, which is going to be 00001010. And each of these decimal numbers, they're going to be represented by eight binary digits. And since each decimal number is going to be represented by eight binary digits, we call those eight digits an octet. Octo meaning eight. So the first decimal number of 10, that's the first octet. The second decimal number of 1, that's the second octet, and so…

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