Wireless
Infrastructure Topology and WiFi Hotspot use
The
Wireless Infrastructure Topology is used the most in setting up
a WiFi Hotspot - one or more wireless access points are used to
implement this topology.
Wireless Infrastructure Topology is
more of the "way" a wireless client "associates" with a
wireless access point to gain access to the wireless
network.
When the wireless
software drivers running the wireless radio in the
client's device detects a wireless network signal the
software determines if the wireless network requires an
association be established between the wireless access
point and the wireless client.

This feat of magic is
accomplished by the software in the client's device.
The software monitors the wireless network packet
information to determine if the wireless network is
sending out an SSID and other information which tells
the software what the operating requirements are to
connect to the wireless network. Some of the
requirements may be to use encryption and if the use of
encryption is required what type of encrytion is being
used (WEP, WPA, etc). The software also monitors the
channels available to determine if there are other
wireless access points within range of the client's
device and what the requirements are to connect to
those networks.
When a client looks to see
what wireless networks are available this is the
information they are presented with. The client then
determines which wireless network they want to connect to
and if they have all the required configurations needed to
connect to the selected wireless network the client's
software sends out an association request to the wireless
access point.
The wireless access point
checks to see if all the requirements are met to allow the
wireless client to "connect" and if all are met the
wireless access point sends back the information needed for
the client's device to "associate" with the wireless access
point - at this point the client has access to the wireless
network.
Author: Gary N.
McKinney
|