11-2
User Guide for Cisco Digital Media Player Device Manager 5.2.x
OL-15764-03
Chapter 11 Configure Network Settings
Concepts
A
AAA
Authentication, Authorization, and Accounting.
See also E
AP-FAST, EAP-MD5 server, LEAP server, and PEAP server.
access point
A device that allows wireless-equipped computers and other devices to communicate with a wired
network. Also used to expand the range of a wireless network.
C
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CCMP
Based on the Advanced Encryption Standard (AES) defined in the National Institute of Standards and
Technology's FIPS Publication 197, AES-CCMP is a symmetric block cipher that can encrypt and
decrypt data using keys of 128, 192, and 256 bits. AES-CCMP is superior to WEP encryption and is
defined in the IEEE 802.11i standard.
See also WE
P keys.
E
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EAP
EAP is the Extensible Authentication Protocol that WPA uses to authorize user access to wireless
networks. Common implementations include EAP-FAST and EAP-MD5.
EAP-FAST
EAP-FAST is a two-phase implementation of the EAP authentication protocol:
• Phase 0, provisioning. Provision client with a credential called PAC (Protected Access
Credentials).
• Phase 1, authentication. Use the PAC to establish a tunnel with the server and authenticate the
username and password.
See also AAA an
d EAP.
EAP-MD5 server
Servers that use EAP to provide dynamic, session-specific wireless encryption keys, central user
administration, and authentication between clients and access points. EAP-MD5 uses MD5 hashing on
client and challenge passwords.
See also AAA an
d EAP.
P
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PEAP server
Protected EAP server, which combines centralized two-way authentication with dynamically generated
wireless equivalent privacy keys or WEP keys.
See also AAA, EAP
-MD5 server, and WEP keys.
PSK
Pre-Shared Key.
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