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Cisco Unified IP Conference Station 7937G Administration Guide for Cisco Unified Communications Manager 6.0
OL-11560-01 Rev. B0
Chapter 9 Troubleshooting and Maintenance
Resolving Startup Problems
Checking Network Connectivity
If the network is down between the conference station and the TFTP server or
Cisco Unified Communications Manager, the conference station cannot start up properly. Ensure that the
network is currently running.
Verifying TFTP Server Settings
You can determine the IP address of the TFTP server used by the conference station by choosing
Applications
>
Settings
>
Network Configuration,
and then scrolling to the
TFTP Server 1
option.
If you have assigned a static IP address to the conference station, you must manually enter a setting for
the TFTP Server 1 option. See the
“Network Configuration Menu” section on page 4-5
.
If you are using Dynamic Host Configuration Protocol (DHCP), the conference station obtains the
address for the Trivial File Transfer Protocol (TFTP) server from the DHCP server. A valid TFTP server
must be set in DHCP option 150 or option 66 on the DHCP server.
You can also enable the conference station to use an alternate TFTP server. Such a setting is particularly
useful if the conference station was recently moved from one location to another. See the
“Network
Configuration Menu” section on page 4-5
for instructions.
Verifying IP Addressing and Routing
You should verify the Internet Protocol (IP) addressing and routing settings on the conference station. If
you are using DHCP, the DHCP server should provide these values. If you have assigned a static IP
address to the conference station, you must enter these values manually.
On the conference station, choose
Applications
>
Settings
>
Network Configuration
, and look at the
following options:
•
DHCP Server—If you have assigned a static IP address to the conference station, you do not need
to enter a value for the DHCP Server option. However, if you are using a DHCP server, this option
must have a value. If it does not, check your IP routing and VLAN configuration. Refer to
Troubleshooting Switch Port Problems
, available at this URL:
http://www.cisco.com/warp/customer/473/53.shtml
•
IP Address, Subnet Mask, Default Router—If you have assigned a static IP address to the conference
station, you must manually enter settings for these options. See the
“Network Configuration Menu”
section on page 4-5
for instructions.
If you are using DHCP, check the IP addresses distributed by your DHCP server. Refer to
Understanding
and Troubleshooting DHCP in Catalyst Switch or Enterprise Networks
, available at this URL:
http://www.cisco.com/warp/customer/473/100.html#41
Verifying DNS Settings
If you are using DNS to refer to the TFTP server or to Cisco Unified Communications Manager, you
must ensure that you have specified a Domain Name System (DNS) server. Verify this setting by
choosing
Applications
>
Settings
>
Network Configuration,
and scrolling to the
DNS Server 1
option.
You should also verify that there is a CNAME entry in the DNS server for the TFTP server and for
Cisco Unified Communications Manager.
You must also ensure that DNS is configured to do reverse look-ups.
