Zyxel-communications P-334W Manual do Utilizador descarregar pdf (Página 103)

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101

Prestige 334W User’s Guide

Wireless Security 8-5

Figure 8-3 WEP Authentication Steps

Open system authentication involves an unencrypted two-message procedure. A wireless station sends an

open system authentication request to the AP, which will then automatically accept and connect the wireless

station to the network. In effect, open system is not authentication at all as any station can gain access to the

network.

Shared key authentication involves a four-message procedure. A wireless station sends a shared key

authentication request to the AP, which will then reply with a challenge text message. The wireless station

must then use the AP’s default WEP key to encrypt the challenge text and return it to the AP, which attempts

to decrypt the message using the AP’s default WEP key. If the decrypted message matches the challenge text,

the wireless station is authenticated.

When your Prestige's authentication method is set to open system, it will only accept open system

authentication requests. The same is true for shared key authentication. However, when it is set to auto

authentication, the Prestige will accept either type of authentication request and the Prestige will fall back to

use open authentication if the shared key does not match.

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