Cisco 7970G Administration Manual page 232

Troubleshooting Cisco Unified IP Phone Security
Table 9-1 Cisco Unified IP Phone Security Troubleshooting (continued)
Problem
802.1X Not Enabled
Phone cannot obtain a DHCP-assigned IP
address.
Phone does not register with
Cisco Unified CallManager.
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 4-42
details).
Status menu displays DHCP status as timing
out (see the "Status Menu" section on page 7-3
for more details).
Factory Reset Deleted 802.1X Shared Secret
Phone cannot obtain a DHCP-assigned IP
address.
Phone does not register with
Cisco Unified CallManager.
Phone status display as "Configuring IP" or
"Registering".
Cannot access phone menus to verify 802.1X
status.
Cisco Unified IP Phone Administration Guide for Cisco Unified CallManager 5.1 (SIP), Cisco Unified IP Phones
9-14
Possible Cause
These errors typically indicate that 802.1X
authentication is not enabled on the phone. To enable
it, see the
on page 4-42
authentication on the phone.
for more
These errors typically indicate that the phone has
completed a factory reset (see the
Factory Reset" section on page
was enabled. A factory reset deletes the shared secret,
which is required for 802.1X authentication and
network access. To resolve this, you have two
options:
Temporarily disable 802.1X authentication on
•
the switch.
Temporarily move the phone to a network
•
environment that is not using 802.1X
authentication.
Once the phone starts up normally in one of these
conditions, you can access the 802.1X configuration
menus and re-enter the shared secret (see the
Authentication and Status" section on page
Chapter 9 Troubleshooting and Maintenance
"802.1X Authentication and Status" section
for information on enabling 802.1X
"Performing a
9-19) while 802.1X
"802.1X
4-42).
OL-11524-01