WLAN can be configured in a variety of ways, ranging from the deployment
of a wireless access point that lets employees connect to a large, corporate
network to wireless Internet access from a coffee shop hotspot around
the corner. Find out how the flexibility of WLAN enables you to set
up a wireless configuration that suits your company's needs.
Ad Hoc Network
An ad hoc (peer-to-peer) network is an independent local area network
not connected to a wired infrastructure and where all stations are connected
directly to one another (called a mesh topology). Configuring a WLAN
in ad hoc mode is used to establish a network where wireless infrastructure
does not exist or where services are not required, such as a trade show
or collaboration by coworkers at a remote location.
Infrastructure Network
In an infrastructure network, WLAN clients connect to the corporate
network through a wireless access point, and then operate like a wired
client would. Most corporate wireless LANs operate in infrastructure
mode and access the wired network for connections to printers and file
servers
Hotspots
A hotspot provides wireless LAN service, for free or for a fee, from
a wide variety of public meeting areas, including coffee shops and airport
lounges. There are currently thousands of hotspots worldwide and new
access points are being added daily. To use hotspots, your notebook
must be configured with Wi-Fi CERTIFIED* technology so you can connect
with other products. Wi-Fi CERTIFIED notebooks can send and receive
data anywhere within the range of a wireless LAN base station.
Point-to-Point Bridge
A bridge connects two networks. A point-to-point bridge would interconnect
two buildings. Access points connect a network to multiple users, and
bridges connect networks. For example, a wireless LAN bridge can interface
with an Ethernet network directly to a particular access point. This
may be necessary if you have several devices in a distant part of the
facility that are interconnected using Ethernet.
Point-to-Multipoint Bridge
When connecting three or more LANs that may be located on different
floors in a building or across buildings, the point to multipoint wireless
bridge is utilized. The multipoint wireless bridge configuration is
similar to a point-to-point bridge in many ways.
Ethernet-to-Wireless Bridge
An Ethernet to wireless bridge connects a single device that has an
Ethernet port but not an 802.11 network interface card (NIC), such as
a network printer.