Three family wireless network mode introduction

The most common mode of wireless networks in three big families: a special wireless network application mode. A group of computers connect to a wireless Internet card. The resource is shared. At present, there are three kinds of equipments used in home wireless network: Wireless network card, wireless AP (Access point. Wireless base station) and wireless router. Let me briefly talk about what they do: The wireless network card is installed on the computer. Used for wireless connections between computers or between computers and AP and routers; wireless APs are used for signal amplification and wireless networks to communicate with wired networks. The function is similar to the cable network hub or switch; A wireless router is similar to a broadband router. In addition to being used to connect to a wireless network card, you can also directly implement a wireless LAN for Internet Connection Sharing. Below I will introduce the common wireless network mode one by one in detail on these three kinds of equipment.

　　The first type: "Wireless Broadband router + wireless network card" mode

"Wireless Broadband router + wireless network card" mode is now a lot of families are using the wireless network mode; see the following figure this mode of wireless networks can be a wired + wireless broadband mixed network. Although wireless networks are free, there are times when the signal is not very good, and the advantage of the wired network is emergent.

Also, for users who use virtual dial-up software to surf the Internet. They no longer need to use a computer as a gateway for virtual dialing. Now you can turn on the Internet and you can always be online. This mode and the above "Wireless ap+ wireless network card" mode compared to the cost of investment increased by about 30%. If everyone is allowed to do so financially, I recommend that you use this pattern.

For ADSL new users I suggest that it is best to be sure that the broadband service is open before starting the installation (this can be called to the ISP). Here's a reminder that your ISP's technical support phone is best kept. It may be used frequently in the future. And then count the wireless broadband routers, network cables, The wireless card and its drive CD-ROM are complete. Especially notice whether the crystal Head is correctly pinched. If you're ready to upgrade to a previous wired network, then of course you don't have to work on the front.

　　Second: Ad-hoc (point to point) mode

Set up in a home wireless LAN. I think we all know the easiest thing to do is to have a wireless internet connection between two computers with a wireless card installed. One computer can share bandwidth if it is connected to the Internet. As shown in the following figure. A wireless LAN based on Ad-hoc structure is completed. The AD-HOC structure is a kind of equivalent network structure which eliminates the wireless AP. As long as the wireless network card is installed between the computer can realize wireless interconnection; The rationale is that a computer host in the network establishes a point-to-point connection equivalent to a virtual AP. Other computers can interconnect and share directly through this point-to-point connection. The five main reasons why laptops don't connect to your wireless network

As a result of the wireless Ap.ad-hoc Wireless LAN network installation process is very simple. But generally the wireless network card in the indoor environment transmission distance is usually about 40m. When more than this effective transmission distance can not achieve the communication between each other; So this model is ideal for some simple, even temporary, wireless interconnection requirements. In addition, if you want to share the bandwidth between all the computers in the scheme, for example, there are 4 machines that share broadband and the bandwidth available for each machine is only 1/3 of the standard bandwidth.

　　The third type: Wireless ap+ wireless network card mode

The wireless ap+ wireless network card mode is the most economical and practical type of three options I am introducing today.

The AP is the abbreviation for Access point. Wireless APs are access points and wireless gateways in a wireless LAN. It functions like a hub in a wired network. When an AP is present in the network. The wireless network card coverage will be twice times the original. And can also increase the wireless LAN to accommodate network equipment. The wireless AP is added. Then it enriches the way of networking. Let's take a look at the basic schematic diagram of this pattern.

As pictured above the AP is no longer a simple link between "wired" and "wireless" because of technology development. There are a variety of additional features on the market. This provides a powerful support for the current variety of home broadband access. Now there are some wireless APs on the market that also have proxy server functions. With the help of ADSL or cable modem, etc. to achieve Internet access sharing. Of course, the prices of these products are also more expensive.

For wireless LANs with AP access points, you need to configure the AP and its IP address first. Then set up the wireless LAN client. Connect it to the wireless AP. and add it to the AP network accordingly. Access point Wireless LAN can also access the existing LAN via the AP with Ethernet interface. Realize the integration of wireless and wired.