Networking Protocols Used With Cisco Wireless Ip Phones - Cisco 7920 - Unified Wireless IP Phone VoIP Administration Manual

Components of the VoIP Wireless Network

Networking Protocols Used with Cisco Wireless IP Phones

Table 2-1 Supported Networking Protocols on the Cisco Wireless IP Phone 7920
Networking Protocol
Cisco Centralized Key
Management (CCKM)
Cisco Discovery
Protocol (CDP)
Cisco Light Extensible
Authentication Protocol
(LEAP)
Dynamic Host
Configuration Protocol
(DHCP)
Cisco Wireless IP Phone 7920 Administration Guide for Cisco CallManager Release 4.0 and 4.1
2-6
Cisco IP Phones support several industry-standard and Cisco networking
protocols for voice communication.
networking protocols that the Cisco Wireless IP Phone 7920 supports.
Purpose
Key generation protocol used for fast
authentication in wireless networks.
Device-discovery protocol that runs
on all Cisco-manufactured
equipment.
Using CDP, a device can advertise its
existence to other devices and receive
information about other devices in
the network.
Proprietary password-based mutual
authentication scheme between the
client (phone) and a RADIUS server.
Dynamically allocates and assigns an
IP address to network devices.
DHCP enables an IP phone to
connect to the network and become
operational without the administrator
assigning an IP address or
configuring additional network
parameters.
Chapter 2 An Overview of the Wireless Network
Table 2-1 provides an overview of the
Usage Notes
Cisco Wireless IP Phone 7920 uses
CCKM for fast, secure roaming
between access points.
The Cisco IP Phone uses CDP to
communicate information such as
auxiliary VLAN ID, per-port power
management details, and Quality of
Service (QoS) configuration
information with the Cisco Catalyst
switch.
Cisco Wireless IP Phone 7920 uses
LEAP for authentication with the
wireless network.
DHCP is enabled by default. If
disabled, you must manually
configure the IP address, subnet
mask, gateway, and an TFTP server
on each phone locally.
Use DHCP custom option 150. With
this method, you configure the TFTP
server IP address as the option value.
For additional supported DHCP
configurations, refer to
Cisco CallManager System Guide.
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