http://www.net.princeton.edu/announcements/ipad-iphoneos32-stops-renewing-le
ase-keeps-using-IP-address.html
iPad gets DHCP lease. If iPad happens to be sleeping during the renewal
time it awakens and uses the IP number forever (until shut down of unit or
WiFi or going out of range)
Tom Zeller
I
We've also been using WPA2/802.1x on our wireless network for several
years now.
Michael Simpson
Utah Valley University
On Apr 16, 2010, at 5:44 PM, Brooks, Stan wrote:
For the record, Emory has been using WPA/2-Enterprise (802.1x) for
our authenticated wireless infrastructure since 2006.