AmbiCom WL1100B-AP Anleitung zur Fehlerbehebung PDF herunterladen (Seite 25)

Connecting to WiFi Networks

Wired Equivalent Privacy (WEP)

Unlike a wired local network, a wireless network cannot easily be protected

from potential intruders by physical barriers such as walls. Since radio

signals travel through physical objects, a potential intruder merely needs to

listen with the right equipment to see the traffic traveling across a wireless

network. For this reason, public wireless networks typically employ

encryption to protect their users.

WEP is the standard encryption technology that is used on most WiFi

networks today. However, a more advanced, more secure encryption

technology called WPA

is beginning to gain acceptance and is replacing

WEP on an increasing number number of networks.

WiFi Protected Access (WPA)

WiFi Protected Access (WPA) is a key improvement to WiFi data security

for both Enterprises and SOHO users. Providing a secure alternative to the

flawed WEP

encryption standard, WPA is a specification created by the

WiFi Alliance designed to simplify and improve the process of securing

WiFi networks. WPA provides an upgrade path for enterprises which

allows them to preserve existing investments in 802.1x/EAP authentication

capabilities which may have been deployed as initial access control

methods. In addition SOHO users can take advantage of a Pre-shared Key

mode in WPA which allows the encryption and network protection

capabilities to function on a home network as well.

What types of WPA are there?

There are two types of WPA (Communication Manager supports both):

• WPA

This type of WPA uses 802.1x to authenticate a user to a network. This

type of WPA is typically used in office and enterprise environments.

You will need to check with your IT staff to see if you can utilize this

form of WPA.

• WPA-PSK

WPA-PSK (Pre-Shared Key) is typically used in home/small office

environments. The encryption key is between eight and sixty-four

characters. Currently, several 802.11g access points and routers support

(or have updates for) WPA-PSK. Refer to your access point/router

manual to see if you can use WPA-PSK with it.

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AmbiCom WL1100B-AP Anleitung zur Fehlerbehebung Seite 25