The History of WLAN Network. Architecture 2/2. Separation of Networks, Access Controllers, VPN. The first real architectural change to improve security

Karri Huhtanen, managing director WLAN Security is in the Architecture ICEFIN Workshop presentation 28.4.2004 2 © 28.4.2004 Arch Red Oy, Karri Huhtanen, managing director The History of WLAN Network Architecture 1/2 • Completely Open Networks – No WEP encryption, no MAC address lists, i
tant access – No problems unless the lack of encryption and access control is co
idered a one • Closed and Hidden Networks – WEP encryption, no network name (ESSID) in beacon messages – Interoperability problems with the WEP key length and with the non- standard beacon messages (no ESSID) • Enter the Access Control – MAC address access control lists in the access points or centralised in the RADIUS database – Scalability becomes an issue as only few access points are capable of using RADIUS. Usability is sacrificed because of the security, but the security on the other hand is reasonably strong. 3 © 28.4.2004 Arch Red Oy, Karri Huhtanen, managing director The History of WLAN Network Architecture 2/2 • Separation of Networks, Access Controlle
, VPN – The fi
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