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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
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order to successfully implement and support the Cisco 7920, system administrators must become familiar with all of these technology areas. This document was created primarily for readers who have limited experience with one or more of the products and technologies required to install and configure a Cisco 7920 IP Phone. It will also benefit readers that have a great deal of experience in some of the areas but not others. QoS is not covered in this document, because it is not required that you im
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You can substitute any Aironet Wireless device that supports 802.11b clients. The Cisco Aironet 1200 AP examples provide some guidelines for how you should configure your Aironet device. Conventions For more information on document conventions, refer to the Cisco Technical Tips Conventions. Background Theory The Cisco 7920 is supported by Cisco CallManager 3.2 and later. It is configured as a Cisco 7960 IP Phone in Cisco CallManager; however, it has its own image file. Wireless devices, such as
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Network Diagram This document uses this network setup: Using Open Authentication and Static WEP Keys If you want to learn more about Wireless Security before you start this section, refer to these documents: • Cisco Aironet Wireless LAN Security Overview • Security Setup for the Cisco Aironet 350 • Wireless Virtual LAN Deployment Guide This example is based on the use of open authentication and 128−bit static Wired Equivalent Privacy (WEP) encryption keys. Caution: It is not recommended to use
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Step−by−Step Instructions The instructions in this section guide you through the minimum configuration steps that are required to enable a Cisco 7920 with a static WEP key. 1. Turn on the Cisco 7920. 2. Choose Menu > Phone Settings > USB Enable / Disable [Enable] to enable the Cisco 7920 USB port. 3. Connect the Cisco 7920 to the USB cable. (The USB cable should already be connected to the PC.) 4. Start the Cisco 7920 Configuration Utility on the PC. Note: If you use Cisco Wireless IP Phone 7920
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8. When this popup window appears, click Cancel: 9. Click Import to obtain the current settings on the Cisco 7920.
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10. When this popup window appears, click OK. 11. Click the System Parameters tab. The System Parameters configuration screen appears. In this case, the Cisco 7920 is using Dynamic Host Configuration Protocol (DHCP) to obtain its IP parameters, including the TFTP address (Cisco CallManager server).
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12. Make any changes that your phone requires. 13. Click the RF Network tab. The RF Network configuration screen appears. 14. Enter the Primary Service Set Identifier (SSID) for the Cisco Aironet 1200 AP. (You will be configuring this value in the 1200 AP in the next subtask.) Leave the Transmit Power and the Data Rate set to their default values. 15. Click the Network Security tab.
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The Network Security configuration screen appears. This is the screen where you enter the Authentication Type and the static WEP keys. The 128−bit WEP keys are created using 26 hexadecimal digits (1−9, A−F). Note: The static WEP keys must be the same on the Cisco 7920 and on the wireless infrastructure devices in your network (in this case, the Cisco Aironet 1200 AP). You might want to keep a copy of them in a document in a secure location; once they are entered into a device, you can not determ
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Note: The Phone Lock Password tab is not covered in this document. Refer to the Cisco 7920 Administrator Guide for more information on this tab. 19. Click Export and the next popup window appears. It is not required that you save the settings to a local file; but, if you would like to do so, click OK and then continue with the rest of this procedure. Note: The static WEP keys are not saved in the configuration file. If you reset a phone to the factory defaults, you can not just download the conf
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22. When this popup window appears, click Yes: 23. When this popup window appears, click OK: 24. Choose File > Exit. The next popup window appears. If you want to save the Log History, click Yes and save it to disk. Otherwise, click No. 25. Right−click the USB icon on the taskbar. 26. Select Cisco 7920 USB and click Stop.
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27. When this popup window appears, click OK: 28. When this popup window appears, click OK: 29. Choose Menu > Phone Settings > USB Enable / Disable [Disable] to disable the Cisco 7920 USB port.
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Verifying There are no steps to verify this part of the configuration. It can be verified at the end of the next subtasks. Troubleshooting All of the troubleshooting guidelines can be found in the Troubleshooting Guidelines section at the end of this document. Configuring the Cisco Aironet 1200 AP The instructions in this section describe the minimum configuration steps to enable a Cisco Aironet 1200 AP with static WEP keys. This will allow the Cisco 7920 to access the LAN and to register with a
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3. To edit the SSID, select the required one from the Current SSID List and edit it. Because the configuration requires the use of Open Authentication, check Open Authentication in the Authentication Settings area (it is checked by default, if you have not changed it). 4. Click Apply−All to apply the SSID and the Authentication settings for all of the Radio interfaces; or click Apply−Radio0 to apply the settings only to Radio0. 5. When this popup warning appears, click OK: 6. Choose Security > E
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Note: The WEP key input appears as asterisks. This is normal behavior. For more information on the configuration of WEP keys, refer to Configuring WEP and WEP Features. c. Leave the Key Size set to the default value (128 bit). d. Click Apply−Radio0 or Apply−All (as appropriate) to save the settings. 7. When this popup warning appears, click OK: Verifying This section helps you to verify the association of the Cisco 7920 with the Cisco Aironet 1200 AP and with the CallManager. 1. If you entered a
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2. If the Cisco CallManager configuration is correct, the Cisco 7920 should have registered with the CallManager server. You should now be able to place calls between the Cisco 7920 and your other IP Phone. Troubleshooting All of the troubleshooting guidelines can be found in the Troubleshooting Guidelines section at the end of this document. Using Open Authentication, Static WEP Keys, and VLANs This task adds support for VLANs, to build on the previous task. The implementation of VLANs requires
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1. Turn on the Cisco 7920. 2. Choose Menu > Phone Settings > USB Enable / Disable [Enable] to enable the Cisco 7920 USB port. 3. Connect the Cisco 7920 to the USB cable. (The USB cable should already be connected to the PC.) 4. Start the Cisco 7920 Configuration Utility. 5. Log in to the Cisco 7920. The default User Name is Admin. The default Password is cisco. Click OK. 6. When this popup window appears, click OK: 7. Choose Edit > Settings Wizard.
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8. When this popup window appears, click Cancel: 9. Click Import to obtain the current settings on the Cisco 7920.
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10. When this popup window appears, click OK: 11. Click the RF Network tab. The RF Network configuration screen appears. Change the SSID 1 value to VLAN2.
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12. Click Export and the next popup window appears. It is not required that you save the settings to a local file; but, if you would like to do so, click OK and then continue with the rest of this procedure. Note: The static WEP keys are not saved in the configuration file. If you reset a phone to the factory defaults, you can not just download the configuration to completely reconfigure it. You will still have to re−enter the static WEP keys. 13. When this popup appears, click OK: 14. Choose Co
