reset tcp ip stack

Introduction1, the agreement is equivalent to the mutual communication between the program reached a convention, it provides the structure of packet packets, the mode of exchange, the meaning of inclusion and how the message contained in the analysis.2, the TCP/IP protocol family has the IP protocol, the TCP protocol a

another, there is no clear connection between the two. UDP does not guarantee data transmission, and does not provide the function of re-sorting or re-request, so it is unreliable. Although the reliability of UDP limits its application scenarios, it has better transmission efficiency than TCP. 4. Application Layer The application layer, presentation layer, and Session Layer correspond to the application layer in the Linux

destination port number: Source port number and destination port number, plus IP header source IP address and destination IP address uniquely determine a TCP connection2. Serial Number: Serial number indicates the first data byte ordinal in this message segment3. Confirmation Number: Only if the ACK flag is 1 o'clock

5th Cisco Test commands and TCP/IP connection failure handlingFirst, fault handling commands1. Show command:1) Global command:Show version; Display system hardware and software versions, DRAM, FlashShow Startup-config; display the configuration content written in NVRAMShow Running-config; display the currently running configuration contentshow buffers; the name and size of the verbose output bufferShow stac

this level includes the network cable standard and the definition of the network card. (We Don't Need To care about this. We don't need to do it either ), therefore, some books do not place this level in the TCP/IP protocol family, because it has almost no relationship with the TCP/IP protocol writers. The sending pro

network card. (We Don't Need To care about this. We don't need to do it either ), therefore, some books do not place this level in the TCP/IP protocol family, because it has almost no relationship with the TCP/IP protocol writers. The sending protocol host encapsulates the data according to the protocol from the top t

definition of the network card. (We Don't Need To care about this. We don't need to do it either ), therefore, some books do not place this level in the TCP/IP protocol family, because it has almost no relationship with the TCP/IP protocol writers. The sending protocol host encapsulates the data according to the proto

Doc1:/proc/sys/net DirectoryAll TCP/IP parameters are located in the/proc/sys/net directory (note that modifications to the contents of the/proc/sys/net directory are temporary and any modifications will be lost after the system restarts).　　 Http://www.360doc.com/content/16/0715/13/25686888_575696702.shtml /etc/sysctl.conf file/etc/sysctl.conf is an interface that allows you to change a runnin

sender, MAC address of the pickup, error detection and correctionMAC address for LAN communication only, not for WANAddress Resolution Protocol: ARP protocolARP: translates IP address into network card address (MAC address)Physical layer, bitThe device driver and the network interface card in the computer. (Handling physical interface details), Ethernet protocolPass data to othersReceive data that someone else has sentClassification and private IP1.0

Differences between TCP/IP, UDP, Http, and SocketFrom top to bottom: presentation layer and application layer: HTTP protocol (based on the transport layer of TCP protocol, mainly to solve how to package data)Session LayerTransmission Layer: TCP protocol (Network-layer IP pro

.　　Winpcap is derived from the BPF (Berkley Packet Filter) and Libpcap function libraries and supports Win32 network monitoring program design. Winsock is a familiar windows socket programming tool, originated from Berkley socket technology. The two network development tools have their own characteristics. They can be used together to improve the efficiency of software development and improve the running performance of software. Winpcap supports receiving and sending original network data packet

(which we do not care, we do not do card), so some books do not put this level in the TCP/IP protocol family, because it almost and tcp/ The creator of the IP protocol has no relationship. The host that sends the protocol encapsulates the data according to the Protocol, and the host receiving the data is untied accord

I. SUMMARY of programme ISSUESThe popularization of mobile Internet and the development of smart home, the development of the IoT, more and more small devices, offline devices need to connect to the Internet to form an interconnection, and service providers to provide more powerful updates service. But ordinary small equipment are low-cost very simple microcontroller-based chip, do not have the Internet function, it is not possible to run in a single-chip TC