9-13
Cisco Unified IP Phone 7961G/7961G-GE and 7941G/7941G-GE for Cisco Unified Communications Manager 6.1
OL-14620-01
Chapter 9 Troubleshooting and Maintenance
Troubleshooting Cisco Unified IP Phone Security
802.1X Enabled on Phone but Not Authenticating
Phone cannot obtain a
DHCP-assigned IP address
These errors typically indicate that 802.1X is enabled on the
phone, but the phone is unable to authenticate.
1.
Verify that you have properly configured the required
components
“Supporting 802.1X Authentication on Cisco
Unified IP Phones” section on page 1-23
.
2.
Confirm that the shared secret is configured on the phone
(see the
“Security Configuration Menu” section on
page 4-37
for more information).
–
If the shared secret is configured, verify that you have
the same shared secret entered on the authentication
server.
–
If the shared secret is not configured, enter it, and
ensure that it matches the one on the authentication
server.
Phone does not register with
Cisco Unified Communications
Manager
Phone status display as
“Configuring IP” or “Registering”
802.1X Authentication Status
displays as “Held” (see the
“802.1X
Authentication and Status” section
on page 4-50
).
Status menu displays 802.1x status
as “Failed” (see the
“Call Statistics
Screen” section on page 7-16
).
802.1X Not Enabled
Phone cannot obtain a
DHCP-assigned IP address
These errors typically indicate that 802.1X is not enabled on the
phone. To enable it, see the
“Security Configuration Menu”
section on page 4-37
for information on enabling 802.1X on the
phone.
Phone does not register with
Cisco Unified Communications
Manager
Phone status display as
“Configuring IP” or “Registering”
802.1X Authentication Status
displays as “Disabled” (see the
“802.1X Authentication and Status”
section on page 4-50
).
Status menu displays DHCP status
as timing out (see the
“Call
Statistics Screen” section on
page 7-16
).
Table 9-1
Cisco Unified IP Phone Security Troubleshooting (continued)
Problem
Possible Cause
Summary of Contents for 7941G - Unified IP Phone VoIP
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