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IPSec Communication
While TLS only encrypts data used on a speciî ´c application, such as a W
eb browser or an e-mail application,
IPSec encrypts the whole (or payloads of) IP packets. This enables IPSec to offer a more versatile security system
than TLS.
Conî ´guring IPSec Settings(P
. 391)
IEEE 802.1X Authentication
IEEE 802.1X is a standard and mechanism for blocking unauthorized access to the network by collectively
managing user authentication information. If a de
vice tries to connect to the 802.1X network, the device must
go through user authentication in order to prove that the connection is made by an authorized user.
Authentication information is sent to and checked by a RADIUS server, which permits or rejects communication
to the network depending on the authentication result. If authentication fails, a LAN switch (or an access point)
blocks access from the outside of the network. The machine can connect to an 802.1X network as a client
device.
Conî ´guring IEEE 802.1X Authentication Settings
(P. 398)
Managing the Machine
369
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