Cisco 7920 - Unified Wireless IP Phone VoIP Administration Manual page 57

Chapter 2 An Overview of the Wireless Network
Table 2-5 Cisco IP Phone Startup Process (continued)
Step
Authenticating with
3.
access point
Cisco Wireless IP Phone 7920 Administration Guide for Cisco CallManager Release 4.0 and 4.1
OL-7104-01
Description
The Cisco Wireless IP Phone 7920 begins the
authenticating process.
If set for Open, then any device can
•
authenticate to the access point. For added
security, static WEP encryption might
optionally be used.
If set to Shared Key, the phone encrypts the
•
challenge text using the WEP key and the
access point must verify that the WEP key
was used to encrypt the challenge text
before network access is available.
If set for LEAP, then the LEAP user name
•
and password are authenticated by the
RADIUS server before network access is
available.
• If set for AKM, the phone looks for an
access point with one of the following key
management options enabled:
WPA or CCKM—The phone
–
authenticates with the RADIUS server.
WPA-PSK—The phone authenticates
–
with the access point using the
pre-shared key password.
Understanding the Phone Startup Process
Related Topics
Security Mechanisms in
the Wireless Network,
page 2-13
2-23