Now there are more and more users with laptops. To achieve more perfect mobile applications, wireless networks should be the best choice for laptops. Of course, the application scope of wireless networks does not end with this. For many laptops and even desktop computers that do not have standard wireless network adapters, it does not cost much to add a wireless network adapter to their devices, wireless networks can also be connected smoothly. In addition, for users who need temporary networking during family gatherings and Field camping during the golden week of May Day, they do not need to carry a wireless router with them, network sharing can be easily achieved through the wireless network card provided by each computer.
I. Wireless Network Interfaces
As we all know, there are only two basic network modes for WLAN wireless networks, one is the basic structure mode (Infrastructure) and the other is the specific mode (ad-hoc ). A complete wireless and wired LAN is called a basic configuration of Infrastructure. It needs to share resources through an AP or wireless router. The basic configuration is mainly used in enterprise and SOHO networks, supports mainstream applications for various wireless access centers or wireless mobile users.
Different from the basic configuration of Infrastructure, a complete Ad-hoc wireless LAN is a group of computers connected to an independent lan. Each computer has a wireless network card and does not require an AP or a wireless router, computers can connect to each other to share resources. Ad-hoc Wireless LAN is more suitable for working in a department or at home and temporary networking.
Specific mode or distributed peer-to-peer ad-hoc) topology
Both solutions can achieve wireless roaming. users using portable computers can continue to communicate when they move freely, and the mobile range is larger than that of a single wireless network AP. Before using the roaming function, the workstation must confirm that its channel is consistent with that of the covered wireless network AP or soft AP wireless network adapter. That is to say, the wireless network workstation can also roam between different AP or soft AP, as long as the AP and the channel of the wireless terminal that it covers) and the SSID wireless network name) same as host.
Therefore, for users who need to set up a network temporarily, the ad-hoc network consisting of wireless network cards is not inconvenient to use, it is no problem to effectively connect wireless clients within 15 years. It can also meet the needs of people for travel and gathering, and is more economical.
Of course, if you want to build such a network flexibly, computers with wireless Nic functions are essential. If you do not have one, you can select a PCI, USB, PCMCIA, and other interfaces wireless network card product in advance, and install the driver of the wireless network card in Windows. In this way, only simple settings are required, and Windows can form a simple and easy-to-use ad-hoc network through wireless network cards.
The specific settings are not complex. Open "wireless network connection" in the taskbar of each computer, select "set wireless network for home and small office", and fill in "network name SSID) ", name, such as IT168, make sure that each computer is consistent. Select "manually set the network", and then click "finish" under the default settings to connect to the ad-hoc network in a specific mode.
If you want to share the Internet, such as sharing a wireless network card, sharing a 56 k modem or broadband), open "Network Neighbor" on the computer where the Internet access device is installed ", check "allow other network users to connect to the Internet through this computer", and select "wireless network connection" in "Home Network Connection. You can also set WEPWEP, that is, Wired Equivalent Privacy, a data encryption device based on 128bit shared key code, to implement secure wireless data transmission.