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Figure 3 | BMC Medical Informatics and Decision Making

Figure 3

From: Wireless local area network in a prehospital environment

Figure 3

A private WLAN with an ACS. A workstation running the Linux operating system functioned as a Network Address Translation (NAT) server. The private LAN was linked with the Internet through a switched hub or router. The AP was configured to use ACS for AAA services for the EAP-enabled wireless devices over the WLAN. A Windows 2000 Server running Active Directory was used to mimic a NAS to negotiate with ACS through the RADIUS protocol.

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