{"id":50676,"date":"2024-02-26T13:30:08","date_gmt":"2024-02-26T06:30:08","guid":{"rendered":"https:\/\/vinahost.vn\/?p=50676"},"modified":"2025-12-19T17:09:07","modified_gmt":"2025-12-19T10:09:07","slug":"what-is-ipv4","status":"publish","type":"post","link":"https:\/\/vinahost.vn\/en\/what-is-ipv4\/","title":{"rendered":"[2026] What is IPv4? | Understanding the Internet Protocol Version 4"},"content":{"rendered":"

Today, in this rapidly growing global Internet world, we cannot ignore IPv4. This is the most used IP today and still does not want to give way to the newer and improved IPv6. What is IPv4<\/a>?<\/strong> What makes IPv4 so special? Let’s find out through the following article of Vinahost<\/a>.<\/span><\/p>\n

1. What is IPv4?<\/b><\/h2>\n

Internet Protocol Version 4 (IPv4) is the fourth version of the Internet Protocol and is the most widely used protocol for data communication across different types of networks. <\/span><\/p><\/blockquote>\n

IPv4 is a connectionless protocol used in packet-switched networks, such as Ethernet. It provides a logical connection between network devices by providing an identifier for each device. There are many ways to configure IPv4 with all types of devices \u2013 including both manual and automatic configuration \u2013 depending on the type of network.<\/span><\/p>\n

IPv4 is based on the best-effort model. This model does not guarantee delivery nor does it prevent duplicate delivery; these aspects are handled by the upper-layer transport.<\/span><\/p>\n

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Internet Protocol Version 4 (IPv4) is the fourth version of the Internet Protocol and is the most widely used protocol for data communication across different types of networks.<\/figcaption><\/figure>\n

Also Read: Demystifying IP Addresses: What is an IP Address & How Does It Work?<\/a><\/strong><\/span><\/p><\/blockquote>\n

2. The Structure of IPv4 Addresses<\/b><\/h2>\n

An IPv4 address is a 32-bit numerical label assigned to each device (e.g., computer, printer) participating in a computer network using the Internet Protocol (IP). It’s like a unique street address for your device on the internet.<\/span><\/p>\n

Here’s the structure of an IPv4 address:<\/b><\/p>\n

32 bits<\/b><\/p>\n

It’s divided into four octets (bytes) of eight bits each, written in decimal form and separated by periods. For example, the address 192.168.1.2 would be represented as four bytes:<\/span><\/p>\n

11000000<\/span><\/p>\n

10101000<\/span><\/p>\n

00000001<\/span><\/p>\n

00000010<\/span><\/p>\n

Network and Host Portions<\/b><\/p>\n

These 32 bits are further divided into two parts:<\/span><\/p>\n