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Security within the Wireless LAN
All these technologies can be added on top of a WEP-secured radio connec-
tion, just like they use in a conventional network the 'naturally' protected
cable as their communication basis.
7.4
802.1x / EAP
The international industry standard IEEE 802.1x and the Extensible
Authentication Protocol (EAP) enables the realization of reliable and secure
access controls for base stations. The access data is centrally administered
on a RADIUS server then, and can be retrieved by the base station if required.
Moreover, this technology makes enables a secured dispatch and a regular
automatic change of WEP keys. In this way IEEE 802.1x improves the protec-
tion efforts of WEP.
In Windows XP the IEEE-802.1x technology is already integrated by default.
For other operating systems 802.1x client software is available.
7.5
IPSec over WLAN
By means of IPSec over WLAN a radio network can be optimally secured in
addition to the already introduced securing mechanisms.
In order to run IPSec over WLAN you have to upgrade the base stations of the
LANCOM 3000 Wireless series with the LANCOM VPN option. Thereafter the
LANCOM 3000 Wireless base station serves as a VPN gateway also.
Thereby, in addition to WEP encryption, a LANCOM 3000 Wireless base sta-
tion offers optionally the possibility to encrypt the radio-link via an
IPSec-based VPN. Required components are the LANCOM VPN option and
the LANCOM VPN Client software for Windows 2000 and XP. For other ope-
rating systems client software from other manufacturers is available.
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