Network Communication Bridge-network protocol X-File (IV)

NetBIOS protocol

Note: NetWork Basic Input/Output System (Basic NetWork Input/Output System) is a small LAN developed by IBM and mainly used for dozens of computers. The NetBIOS protocol is an application programming interface (API) that can be used by a program on the LAN. It provides a unified command set for the program to request low-level services, it serves to provide networks and other special functions for LAN. Almost all LAN networks work on the basis of the NetBIOS protocol.

Application: in Windows, NetBIOS is automatically installed after TCP/IP is installed by default. For example, in Windows 2000/XP, when "automatically obtain IP Address" is selected, the DHCP server is enabled and the NetBIOS settings are used for the server. If the static IP address is used or the DHCP server does not provide NetBIOS settings, enable NetBIOS on TCP/IP. The specific setting method is as follows: first open "Control Panel" and double-click "network connection" to open the local connection attribute. In the Properties window, select "Internet Protocol (TCP/IP)" on the "General" tab and click "properties. In the displayed window, click the "advanced" button. In the "Advanced TCP/IP Settings" window, select the "WINS" tab, in the "NetBIOS Settings" area, you can set the corresponding NetBIOS (1 ).

NetBEUI Protocol

Note: NetBIOS Extend User Interface (NetBIOS User Extended Interface), also proposed by IBM in 1985, is mainly used in the LAN of 20 to 200 computers, for example, early DOS, LAN Manager, and Windows 3. x and so on. The NetBEUI protocol can be seen as an extension and improved version of the NetBIOS protocol. It features a small size, high efficiency, and fast speed. NetBEUI can be seen as a transmission protocol, while NetBIOS only uses a group of commands to make the system use the network.

Application: The NetBEUI protocol is mainly used in the local LAN and generally cannot be used to communicate with computers in other networks. It is different from the TCP/IP and IPX/SPX protocols we mentioned earlier. In Windows, the methods for installing the NetBEUI protocol are different. For example, in Windows 98/ME, you only need to double-click "network" in "Control Panel", "add" protocol in the Open Properties window, and select Microsoft's NetBEUI protocol for installation. In Windows XP, the "nbf. copy the sys file to the % SYSTEMROOT % SYSTEM32DRIVERS directory, and then copy "netnbf. copy the inf file to the % SYSTEMROOT % INF directory. When "protocol" is installed, the "NetBEUI protocol" is displayed in the selection window (2 ).

Figure 1 enable NetBIOS


Figure 2 install the NetBEUI Protocol