header length

Each IP datagram starts with an IP header. The TCP/IP software of the source computer constructs this header, and the destination computer's TCP/IP software leverages the information processing data encapsulated in the IP header. The IP header

Directory 1. Host-to-network protocol: Ethernet protocol 2. IP protocol 3. Internet Control Packet Protocol (ICMP) 4. Transmission Control Protocol (TCP) 5. User data packet protocol (UDP) 6. Stream Control transmission protocol (SCTP) 7.

NanyiOriginal: http://www.ruanyifeng.com/blog/2012/06/internet_protocol_suite_part_ii.htmlWe use the internet every day, have you ever wondered how it is implemented?Billions of computers worldwide, connected together, 22 Communication. Shanghai a

When google is used to search for the IP datagram header checksum algorithm, the code is always displayed and the process is not displayed, so this article is available. If there is an error, please correct it. This article is omitted, huh?

I. Operating System FundamentalsOperating system: (Operating System, abbreviated OS) is a computer program that manages and controls computer hardware and software resources, is the most basic system software that runs directly on "bare metal", and

I. Operating System FundamentalsOperating system: (Operating System, abbreviated OS) is a computer program that manages and controls computer hardware and software resources, is the most basic system software that runs directly on "bare metal", and

1, the socket module used to be divided into the server and the client, the server to receive and process the request, and then return the request data back to the client, the client to read data, close the connection, and finally end the

excerpt from: http://linzhibin824.blog.163.com/blog/static/735577102013144223127/This brute force password cracking tool is quite powerful, supporting the online password cracking of almost all protocols, the key to whether the password can be

Through the TCP/IP protocol learning, I wrote a can achieve the Pcap file in the IPV4 TCP stream extraction, as well as extract the specified TCP stream, in order to learn, did not adopt the third party package parsing pcap, but the analysis of the

Read Catalogue I. Operating System Fundamentals Two. Principles of network communication 2.1 The essence of the Internet is a series of network protocols 2.2 OSI layer Seven protocol 2.3 TCP/IP five-layer model explained

Browser and server involves a lot of network communication content, here do a weakening introduction, as the front-end focus on part four.First, network Environmental protectionLet us first assume that the URL we visit is www.abc.com and that the

Pick   Want    streaming media file format plays an important role in streaming media system, so designing a reasonable file format is the most direct and effective way to improve the efficiency of streaming media server. Based on the analysis of

TCP/IP protocol (Transmission control protocol/internet Protocol Transmission Control Protocol/Internet Interconnection Protocol) TCP/IP is a protocol Stack, including TCP, IP, UDP, ICMP, RIP, TELNET, FTP, SMTP, ARP, and many other protocols The

1. Linux Network Path 1.1 Sending End 1.1.1 Application Layer (1) Socket The application layer of the various network applications are basically through the Linux Socket programming interface and kernel Space network protocol stack communication.

Some of the answers collected online: The connection was maintained on state, and I understood so is actually maintaining a variable on both the client and server side, this variable maintains the current state of data transmission, such as what

First, Mac frame header definition /* Data frame definition, first 14 bytes, tail 4 bytes * *typedef struct _MAC_FRAME_HEADER{Char m_cdstmacaddress[6]; Destination MAC AddressChar m_csrcmacaddress[6]; SOURCE MAC AddressShort M_ctype; The previous

For the first network programming developers, the communication protocol design is generally confused. This aspect is also less relevant in general web-programming books. Guess it's too easy. This piece is really not difficult, but if you don't know

This article refers to some of the previous procedures and related articles, after summing up and re-join their own understanding, I hereby express our gratitude for the hard work of our predecessors. Http://www.cnblogs.com/chef/archive/2012/07/18/25

Reprinted from: http://blog.sina.com.cn/s/blog_48d4cf2d0101859x.html For the first network programming developers, the communication protocol design is generally confused. This aspect is also less relevant in general web-programming books. Guess

For the first network programming developers, the communication protocol design is generally confused. This aspect is also less relevant in general web-programming books. Guess it's too easy. This piece is really not difficult, but if you don't know