Concept, installation and setting of TCP/IP communication protocol

We all know that the construction of the Internet is completed only when protocol standards are passed. Therefore, among them, the most basic is the TCP/IP communication protocol. The standard of this protocol is the Internet address and transmission specification. Therefore, if you want to learn the Internet well, the content of this protocol will have to be proficient.

◆ Basic introduction to TCP/IP communication protocol.

The abbreviation of TCP IPTransmission Control Protocol/Internet Protocol, this Protocol is the most basic protocol of the Internet and the foundation of the Internet's international interconnection network. Simply put, it is composed of the IP protocol at the network layer and the TCP protocol at the transmission layer.

TCP/IP is a two-tier program. The high-level layer is the transmission control protocol, which aggregates information or splits files into smaller packages. These packets are transmitted to the TCP layer of the receiving end through the network, and the TCP layer of the receiving end restores the packet to the original file. The lower layer is the Internet protocol, which processes the address section of each package so that these packages arrive at the destination correctly. The Gateway computer on the network selects routes based on the information address. Even the routes from the same file may be different, but they will eventually converge at the destination. TCP/IP uses the Client/Server mode for communication. TCP/IP communication is point-to-point, meaning that communication is between one host in the network and another host. There is no nationality between TCP/IP and upper-layer applications, because each customer request is considered unrelated to the previous request. It is precisely the "stateless" between them that the network path is released, so that everyone can continuously use the network. Many users are familiar with high-level application protocols using the tcp ip protocol. Including Hypertext Transfer Protocol (HTTP) for the World Wide Web, file transfer protocol (FTP), remote network access protocol (Telnet), and Simple Mail Transfer Protocol (SMTP ). These protocols are usually packaged together with the tcp ip protocol. PCs connected to the network using analog phone modem usually use the Serial Line Interface Protocol SLIP) and Point-to-Point Protocol P2P ). These protocols compress IP packets and send them to the recipient's modem through a dial-up telephone line. The User Datagram Protocol (UDP) is used to replace the tcp ip protocol for special purposes. Other protocols are used by network hosts to exchange routing information, including Internet Control Information Protocol ICMP), Internal Gateway Protocol IGP), external gateway protocol EGP), and Border Gateway Protocol BGP ).

◆ Install the TCP/IP communication protocol.

In Windows NT, if the TCP/IP communication protocol is not installed, you can select "Start/set/control panel/network". The "network" dialog box appears, select "protocol/Add" in the dialog box, select the tcp ip protocol, and click "OK. The system will ask if you want to set "DHCP server? If your IP address is fixed, you can select "no ". Then, the system starts to copy the required files from the installation disk.

◆ TCP/IP communication protocol settings.

In the "network" dialog box, select the installed tcp ip protocol to open its "properties". The dialog box shown in Figure 2 appears. Enter the allocated "ip address" and "subnet mask" at the specified position ". If you want to access other Widnows NT network resources, you can also enter the gateway address in "Default Gateway.

◆ Test the TCP/IP communication protocol.

After the tcp ip protocol is installed and configured, you must test it before use to ensure it works properly. I suggest you use the built-in tool program: PING. EXE, the tool can check whether any user is connected to other users in the same network segment, whether the connection is normal with users in other network segments, you can also check whether your IP address conflicts with the IP addresses of other users.

If the IP address of the server is 192.168.0.1, to test whether your machine is connected to the server, you only need to switch to the DOS prompt and type the command "PING 192.168.0.1. If a message similar to "Reply from 192.168.0.1…" appears ......" The response indicates that the tcp ip protocol works normally. If the message similar to "Request timed out" is displayed, the tcp ip protocol settings of both parties may be incorrect, or other network connections, such as NICs, hubs, or connections). Further checks are required.

Summary when establishing a LAN, the specific network communication protocol depends on the network size, network compatibility, and network management. If you are creating a small single network segment and there is no external connection, you 'd better select the NetBEUI communication protocol. If you are migrating from NetWare to Windows NT, or if the two platforms coexist, IPX/spx and its compatible protocols provide a good transmission environment. If you are planning an efficient, interconnected, and scalable network, TCP/IP will be the ideal choice.