internet protocol tcp ip properties

Put these three protocols together because the three protocols are on the same level, the ARP protocol is used to locate the target host's Ethernet NIC MAC address, and the IP hosts the message to be sent. The data link layer can get the data transfer information from ARP, and the data to be transmitted from IP.1.IP pr

Introduction to tcp protocol (TCP/IP) and TCP/IP Role of the transport layer: the IP layer provides point-to-point connections, and the transport layer provides end-to-end connections

I. TCP/IP background and introductionIn the 70 's, with the development of computer technology, computers users realized that it was necessary to connect computers from all over the world to play a more important role in computer. But the simple connection is not enough, because the computer can not communicate. Therefore, the design of a common "language" to communicate is necessary to be less, then the

Different TCP/IP layers provide different security. For example, a virtual private network is provided at the network layer and a secure connection service is provided at the transmission layer. The following describes the security of TCP/IP at different levels and the methods to improve the security of each layer.I. S

(segment). Session Layer: Manages the session process between hosts, including management during session creation, termination, and sessions. The presentation layer (presentation Layer): The presentation layer transforms the data transmitted by the network, so that the information transmitted between multiple hosts can understand each other, including data compression, encryption, format conversion and so on. Application layer (Application Layer): The application layer communicates with the app

What is the TCP.IP protocol? Generally speaking, TCP/IP protocol is the Technology foundation of Internet based on TCP/IP protocol (Transmis

Analysis of TCP/IP layer-4 protocol system and tcpip layer-4 Protocol TCP/IP layer-4 protocol system 1) The link layer, also known as the data link layer or network interface layer, us

which port to forward this data to by the destination MAC address. Instead of being forwarded to all drop ports, like the hub. Therefore, the switch is able to divide the conflict domain drops.Network layerFour main protocols: Internet Protocol IP: Responsible for addressing and routing packets between host and network. Address Resolution

Digression: Originally wanted to follow the internet level from the bottom up review these agreements, but today really have to break the case, DHCP has to say!Host from one network to another network, then the structure of IP address will change, today's mainstream has the following several modification scenarios:(a) Change of address:The host changes its address when moving to a new network, where a DHCP

address mask request and reply messageICMP timestamp request and reply messageICMP Unreachable messageICMP echo Request and ECHO Response message formatICMP super-Times articleICMP Redirect MessageICMP router Request message formatICMP Router Advertisement message formatError message format for ICMP Source station suppressionICMP Type:The ICMP error reporting message should not be sent: ICMP error Reporting messages are not sent for all subsequent datagrams of the first Shard's data sh

IP: Internet Protocol Unreliable: IP datagram cannot be successfully delivered to the destination, and only the best transmission service is provided. No connection: the IP address does not maintain any status information about subsequent datagram. The processing of each dat

broadcast, the answer is sent by a single advertisement.Two. RARP (Inverse Address Resolution Protocol)Rarp is to map the physical address to a logical address, the RARP request is sent by broadcast, the answer is sent by a single advertisement.Three. IP (Internet Interconnection Protocol)

The concept, model, and Protocol family of TCP/IP Control Protocol/Internet Protocol are abbreviated as Transmission Control Protocol/Internet