Cisco UNIFIED 6911 Handmatig - Pagina 17

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Cisco UNIFIED 6911 Handmatig
Cisco Unified IP Phone
Topic
Security and phone configuration files
Disabling access to phone web pages
Troubleshooting
Deleting the CTL file from the phone
Resetting or restoring the phone
802.1X Authentication for Cisco Unified IP Phones
Supported Security Features
The following table provides an overview of the security features that the Cisco Unified IP Phone 6901 and
6911 support. For more information about these features and about Cisco Unified Communications Manager
and Cisco Unified IP Phone security, see the Cisco Unified Communications Manager Security Guide.
Note
Most security features are available only if the phone contains a certificate trust list (CTL). For more information
about the CTL, see the "Configuring the Cisco CTL Client" chapter in Cisco Unified Communications Manager
Security Guide.
Table 3: Overview of Security Features
Feature
Image authentication
Customer-site certificate installation
Supported Security Features
Reference
Cisco Unified Communications Manager Phone
Addition Methods
Disable and Enable Web Page Access
•
Troubleshooting and Maintenance
• Troubleshooting Guide for Cisco Unified
Communications Manager
Cisco Unified IP Phone Reset or Restore
Cisco Unified IP Phone Reset or Restore
•
802.1X Authentication, on page 22
•
Troubleshooting and Maintenance
Description
Signed binary files (with the extension .zz.sgn)
prevent tampering with the firmware image before it
is loaded on a phone. Tampering with the image
causes a phone to fail the authentication process and
reject the new image.
Each Cisco Unified IP Phone requires a unique
certificate for device authentication. Phones include
a manufacturing installed certificate (MIC), but for
additional security, you can specify in Cisco
Unified Communications Manager Administration
that a certificate be installed by using the Certificate
Authority Proxy Function (CAPF).
Cisco Unified IP Phone
17