April 2011
Intermediate to advanced
368 pages
11h 36m
English
Content preview from Secure Roaming in 802.11 Networks
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Roaming between 802.11 and Other Wireless Technologies
system. This assumption implies that the WLAN will use a SIM-based authentication system
and some back-end interface into the 3G authentication and charging systems. It additionally
implies that the WLAN uses AAA mechanisms compatible with those used in the 3GPP
system, specifically the HSS that we saw in Figure 10.3. It should be noted that this will
require the use of the DIAMETER AAA protocol that we introduced in Chapter 6, rather than
the RADIUS protocol which is currently in common use in 802.11 networks.
The third level of interoperability is Access to 3GPP System IMS-Based Services. This ...
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