The documentation set for this product strives to use bias-free language. For the purposes of this documentation set, bias-free is defined as language that does not imply discrimination based on age, disability, gender, racial identity, ethnic identity, sexual orientation, socioeconomic status, and intersectionality. Exceptions may be present in the documentation due to language that is hardcoded in the user interfaces of the product software, language used based on RFP documentation, or language that is used by a referenced third-party product. Learn more about how Cisco is using Inclusive Language.
This chapter provides information about using the Settings options to display and change IP settings, host settings, and Network Time Protocol (NTP) settings.
The IP Settings options allow you to view and change IP and port setting for the Ethernet connection and, on Cisco Unified Communications Manager subscriber nodes, to set the IP address of the Cisco Unified Communications Manager database publisher node.
The IP Settings window indicates whether Dynamic Host Configuration Protocol (DHCP) is active and also provides the related Ethernet IP addresses, as well as the IP address for the network gateway.
All Ethernet settings apply only to Eth0. You cannot configure any settings for Eth1. The Maximum Transmission Unit (MTU) on Eth0 defaults to 1500.
Step 1 | From the
Cisco Unified Communications
Operating System Administration window, navigate to
.
The Ethernet Settings window appears. | ||||||||||||||
Step 2 | To modify the
Ethernet settings, enter the new values in the appropriate fields. For a
description of the fields on the Ethernet Settings window, see the following
table.
| ||||||||||||||
Step 3 | To preserve your
changes, click
Save.
|
Use the following procedure to enable and configure IPv6 on the node.
Note | All Ethernet settings apply only to Eth0. You cannot configure any settings for Eth1. The Maximum Transmission Unit (MTU) on Eth0 defaults to 1500. |
Be aware that this feature is only applicable if Cisco Unified Communications Manager is installed alone on the node.
On Cisco Unified Communications Manager subscriber nodes, you can view or change the IP address of the Cisco Unified Communications Manager database publisher node.
Note | For detailed instructions about changing the IP address and hostname of nodes in a cluster, see Changing the IP Address and Host Name for Cisco Unified Communications Manager. |
To view or change the IP settings of the Cisco Unified Communications Manager database publisher node, follow this procedure:
Step 1 | From the
Cisco Unified Communications
Operating System Administration window, navigate to
.
The Publisher Settings window displays.
| ||
Step 2 | Enter the new IP address of the Cisco Unified Communications Manager database publisher node. | ||
Step 3 | Click Save. |
If the IP address of the Cisco Unified Communications Manager database publisher node gets changed while a Cisco Unified Communications Manager subscriber node is offline, you may not be able to log in to Cisco Unified Communications Manager Administration on the subscriber node. If this occurs, follow this procedure:
Step 1 | Log in directly
to operating system administration on the
Cisco Unified Communications Manager subscriber node
by using the following IP address:
http://node-name/iptplatform where node-name specifies the host name or IP address of the Cisco Unified Communications Manager subscriber node. |
Step 2 | Enter your Administrator user name and password and click Submit. |
Step 3 | Navigate to . |
Step 4 | Enter the new IP address for the Cisco Unified Communications Manager database publisher node and click Save. |
Step 5 | Restart the Cisco Unified Communications Manager subscriber node. |
Ensure that external NTP servers are stratum 5 or lower.
We recommend that the NTP for the publisher is set to stratum 1, 2, or 3, and that you use only a Linux or IOS NTP source. Windows Time Services as an NTP server is not recommended or supported.
Note | You can only configure the NTP server settings on the Cisco Unified Communications Manager database publisher node. |
Step 1 | From the
Cisco Unified Communications
Operating System Administration window, navigate to
.
The NTP Server Settings window displays. | ||
Step 2 | You can add,
delete, or modify an NTP server:
| ||
Step 3 | To refresh the
NTP Server Settings window and display the correct status, choose
.
|
The SMTP Settings window allows you to view or set the SMTP hostname and indicates whether the SMTP host is active.
Tip | If you want the system to send you e-mail, you must configure an SMTP host. |
To manually configure the time, follow this procedure:
Note | Before you can manually configure the server time, you must delete any NTP servers that you have configured. |
Caution | If you enter a time that is before the time when Cisco Unified Communications Manager was installed on the server, the digital certificates that the server uses for security become invalid, causing the web server (Tomcat) to stop working. If this happens, you must regenerate the certificates. |
Step 1 | From the Cisco Unified Communications Operating System Administration window, navigate to . |
Step 2 | Enter the date and time for the system. |
Step 3 | Click Save. |
Step 4 | On a Cisco Unity Connection server, if you changed the date or if you changed the time by more than two minutes, use the CLI command utils system restart to restart the server. |