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This article focuses on "how many bytes is the length of a fixed ip header". Interested friends may wish to take a look. The method introduced in this paper is simple, fast and practical. Let the editor take you to learn "how many bytes is the length of a fixed ip header"?

The length of a fixed ip header is 20 bytes, because an IP packet consists of a header and data, in which the first 20 bytes of the header are required for all IP packets, also known as fixed headers.

Operating environment of this article: windows7 system, DELL G3 computer

What is the length of the fixed ip head?

Fix the length of the IP header in 20 bytes.

IP packet structure

An IP packet consists of a header and data. The first 20 bytes of the header are required for all IP packets, also known as fixed headers. After the fixed part of the header are some optional fields whose length is variable.

Related introduction:

TCP/IP (Transmission Control Protocol/Internet Protocol, Transmission Control Protocol / Internet Protocol) is a suite of protocols that can transfer information between different networks. TCP/IP protocol not only refers to TCP and IP protocols, but also refers to a protocol suite composed of FTP, SMTP, TCP, UDP, IP and other protocols. Only because TCP and IP protocols are the most representative of TCP/IP protocols, they are called TCP/IP protocols.

Features:

TCP/IP protocol can develop rapidly and become a de facto standard, because it just meets the needs of data communication all over the world. It has the following characteristics:

(1) the protocol standard is completely open, can be used by users free of charge, and is independent of specific computer hardware and operating system.

(2) independent of the network hardware system, it can run on the wide area network and is more suitable for the Internet.

(3) the network address is assigned uniformly, and each device and terminal in the network has a unique address.

(4) High-level protocol standardization, which can provide a variety of reliable network services.

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