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NetVanta 160 Series Wireless Configuration Guide Introduction to Wireless Technology

WLAN Security

Wireless security is an important factor in the configuration of a WLAN. An AOS AP supports the 802.11

wired equivalent privacy (WEP), 802.1x, Wi-Fi protected access (WPA), and WPA2 security modes. An

understanding of the security parameters necessary for a particular network is required before configuring

the WLAN. Review the following short descriptions of security commands.

Personal Modes: Preshared Keys (PSK)

• The

WEP: OPEN security parameter allows clients to connect using WEP keys, based on the 802.11

standards. In this security mode, open authentication with static WEP keys is used.

• The

WEP: SHARED security parameter allows clients to connect using WEP keys, based on the

802.11 standards. In this security mode, shared authentication with encrypted static keys is used.

Effective Data

Throughput

5 Mbps 32 Mbps 32 Mbps 90 Mbps per

stream on a 20

MHz channel,

200 Mbps on 40

MHz channel

Advertised Range 100 m 100 m 75 m N/A

Office Range 60 m 75 m 25 m N/A

Non-overlapping

Channels

3 3 8 23

Interfering

Services

Cordless Phones,

Microwaves,

Bluetooth Devices

Cordless Phones,

Microwaves,

Bluetooth Devices

HyperLAN

Devices,

Maritime,

Satellite and

RADAR Systems

Cordless Phones,

Microwaves,

Bluetooth

Devices,

HyperLAN

Devices,

Maritime, Satellite

and RADAR

Systems

(depending on

GHz used)

Availability Worldwide Worldwide Limited Limited

Although WEP: SHARED uses encrypted keys, plain-text challenge requests

present security risks that must be taken into account when determining the correct

network security parameters.

Table 1. WLAN Standards Characteristics (Continued)

Characteristic 802.11b 802.11g 802.11a 802.11n

1 2 3 4 5 6 7 8 9 10 ... 57 58

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