TRENDnet TEW-303PI Manual - Page 39

APPENDIX C: 802.1x Authentication Setup

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APPENDIX C: 802.1x Authentication Setup There are three essential components to the 802.1x infrastructure: (1) Supplicant, (2) Authenticator and (3) Server. The 802.1x security supports both MD5 and TLS Extensive Authentication Protocol (EAP). The 802.1x Authentication is a complement to the current WEP encryption used in wireless network. The current security weakness of WEP encryption is that there is no key management and no limitation for the duration of key lifetime. 802.1x Authentication offers key management, which includes key per user and key per session, and limits the lifetime of the keys to certain duration. Thus, key decryption by unauthorized attacker becomes extremely difficult, and the wireless network is safely secured. We will introduce the 802.1x Authentication infrastructure as a whole and going into details of the setup for each essential component in 802.1x authentication. 802.1x Authentication Infrastructure 802.11 Wireless Access Points Support 802.1X Authentication Request Public 802.11 Wireless Networks 802.11 Wireless Clients Support 802.1X RADIUS Server Authentication Success Internet/ Intranet The Infrastructure diagram showing above illustrates that a group of 802.11 wireless clients is trying to form a 802.11 wireless network with the Access Point in order to 39

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APPENDIX C: 802.1x Authentication Setup
There are three essential components to the 802.1x infrastructure: (1) Supplicant, (2)
Authenticator and (3) Server.
The 802.1x security supports both MD5 and TLS
Extensive Authentication Protocol (EAP).
The 802.1x Authentication is a
complement to the current WEP encryption used in wireless network.
The current
security weakness of WEP encryption is that there is no key management and no
limitation for the duration of key lifetime.
802.1x Authentication offers key
management, which includes key per user and key per session, and limits the lifetime
of the keys to certain duration.
Thus, key decryption by unauthorized attacker
becomes extremely difficult, and the wireless network is safely secured.
We will
introduce the 802.1x Authentication infrastructure as a whole and going into details of
the setup for each essential component in 802.1x authentication.
802.1x Authentication Infrastructure
The Infrastructure diagram showing above illustrates that a group of 802.11 wireless
clients is trying to form a 802.11 wireless network with the Access Point in order to
802.11 Wireless
Access Points
Support 802.1X
RADIUS
Server
Authentication Request
Internet/
Intranet
Authentication Success
802.11 Wireless
Clients
Support 802.1X
Public
802.11
Wireless
Networks