ZyXEL VMG1312-B10A VMG1312-B10A-EU01V1F 数据表

Chapter 7 Wireless

VMG1312-B10A User’s Guide

• An “infrastructure” type of network has one or more access points and one or more wireless 

clients. The wireless clients connect to the access points.

• An “ad-hoc” type of network is one in which there is no access point. Wireless clients connect to 

one another in order to exchange information.

The following figure provides an example of a wireless network.

Example of a Wireless Network

The wireless network is the part in the blue circle. In this wireless network, devices A and B use the 
access point (AP) to interact with the other devices (such as the printer) or with the Internet. Your 
Device is the AP.

Every wireless network must follow these basic guidelines.

• Every device in the same wireless network must use the same SSID.

The SSID is the name of the wireless network. It stands for Service Set IDentifier.

• If two wireless networks overlap, they should use a different channel.

Like radio stations or television channels, each wireless network uses a specific channel, or 
frequency, to send and receive information.

• Every device in the same wireless network must use security compatible with the AP.

Security stops unauthorized devices from using the wireless network. It can also protect the 
information that is sent in the wireless network.

In the radio spectrum, there are certain frequency bands allocated for unlicensed, civilian use. For 
the purposes of wireless networking, these bands are divided into numerous channels. This allows a