Cisco Systems 7920 IP Phone User Manual


 
Configuring the Cisco 7920 Wireless IP Phone with
WEP Keys, VLANs, and LEAP
Document ID: 43622
Introduction
Prerequisites
Requirements
Components Used
Related Products
Conventions
Background Theory
Network Diagram
Using Open Authentication and Static WEP Keys
Configuring the Cisco 7920
Configuring the Cisco Aironet 1200 AP
Using Open Authentication, Static WEP Keys, and VLANs
Configuring the Cisco 7920
Configuring the Cisco Aironet 1200 AP with a VLAN
Configuring 802.1Q Trunking on the Catalyst 2924 XL
Configuring the Inter−VLAN Router
Using Cisco LEAP
Configuring the Cisco 7920
Configuring the Cisco Aironet 1200 AP for LEAP
Configuring the Cisco Secure Server for LEAP
Troubleshooting Guidelines
Cisco 7920 Exhibits Problems After Configuration Changes
Cisco 7920 Error Message − Association Failed, No AP Found
Cisco 7920 Error Message − No Service IP Config Failed
Cisco 7920 Error Message − Registration Rejected
Cisco 7920 Error Message − Connecting to CallManager 0−5
Cisco 7920 Configuration Utility Can Not Connect to 7920 − Connection Busy
LEAP Authentication Fails
General Troubleshooting Hints
Appendix: Configuring the Cisco 7920 with CallManager
Related Information
Introduction
This document explains how to configure the Cisco 7920 Wireless IP Phone (Cisco 7920) in common
network scenarios. It starts with the most basic configuration required to implement a Cisco 7920. It goes on
to explain the next level of complexity, which is the use of VLANs. The final level of complexity is the use of
Cisco Secure Access Control Server (ACS) for security. The goal of this document is to provide the reader
with a single document that covers the basic tasks required to implement a Cisco 7920 in a lab environment,
so that the user can use these skills to implement a Cisco 7920 in a live environment. The reason that this
document is targeted at a lab environment is that it is impossible to cover, in a single document, all of the
possible permutations of equipment and features that are available to implement a Cisco 7920 in a live
environment.
The Cisco 7920 is the first Cisco product to combine Voice over IP (VoIP) technology, Wireless LAN
(WLAN) technology, Quality of Service (QoS), and Access/Authentication/Authorization (AAA) security. In