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Settings
This chapter provides information about using the Settings options to display and change IP settings, host settings, and Network Time Protocol (NTP) settings.
IP settings
The IP Settings options allow you to view and change IP and port setting for the Ethernet connection and, on subsequent nodes, to set the IP address of the publisher.
Set up ethernet settings
ProcedureThe 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 displays.
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.
Caution Changing IP address or host of a node can affect system performance. For detailed information, see Changing the IP Address and Host Name for Cisco Unified Communications Manager Release 8.6(1) at http://cisco.com/en/US/products/sw/voicesw/ps556/prod_maintenance_guides_list.html.
Set up IPv6
ProcedureUse 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.
Step 1 From the Cisco Unified Communications Operating System Administration window, navigate to . The Ethernet IPv6 Configuration window displays.
Step 2 To modify the Ethernet settings, enter the new values in the appropriate fields. For a description of the fields on the Ethernet IPv6 Configuration window, see the following table.
Table 2 Ethernet IPv6 Configuration Fields and Descriptions Choose one of the following IP address sources:
Be aware that the three IP address sources are mutually exclusive.
Note Unless you specify Manual Entry, the IP Address and Mask fields remain read only.
If you chose Manual Entry, enter the IPv6 address of the node; for example:
If you chose Manual Entry, enter the IPv6 mask; for example:
If you want the system to reboot immediately after you click Save, check this check box. If you want to reboot later, leave the check box blank.
Note For the IPv6 settings to take effect, you must reboot the system.
Step 3 To preserve your changes, click Save.
Note If you check the Update with Reboot check box, the system reboots after you click Save. For the IPv6 settings to take effect, you must reboot the system.
Set up publisher settings
ProcedureBe aware that this feature is only applicable if Cisco Unified Communications Manager is installed alone on the node.
On subsequent or subscriber nodes, you can view or change the IP address of the first node or publisher for the 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 publisher IP settings, follow this procedure:
Step 1 From the Cisco Unified Communications Operating System Administration window, navigate to . The Publisher Settings window displays.
Note You can only view and change the publisher IP address on subsequent nodes of the cluster, not on the publisher itself.
Step 2 Enter the new publisher IP address. Step 3 Click Save.
Set up IP address
ProcedureIf the IP address of the first Cisco Unified Communications Manager node gets changed while a subsequent node is offline, you may not be able to log in to Cisco Unified Communications Manager Administration on the subsequent node. If this occurs, follow this procedure:
Step 1 Log in directly to operating system administration on the subsequent node by using the following IP address: http://node-name/iptplatform
where node-name specifies the host name or IP address of the subsequent 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 publisher and click Save. Step 5 Restart the subsequent node.
Set up NTP servers
ProcedureEnsure that external NTP servers are stratum 5 or higher (1-9). To add, delete, or modify an external NTP server, follow this procedure:
Note
You can only configure the NTP server settings on the first node or publisher.
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:
Note To avoid potential compatibility, accuracy, and network jitter problems, the external NTP servers that you specify for the primary node must be NTP v4 (version 4). If you are using IPv6 addressing, external NTP servers must be NTP v4.
Note If you run Cisco Unified Communications Manager on a virtualized server and you change this value, you must obtain a replacement license file that is registered to the calculated license MAC based on the new value.
Step 3 To refresh the NTP Server Settings window and display the correct status, choose .
Note After deleting, modifying, or adding the NTP server, you must restart all other nodes in the cluster for the changes to take affect.
Set up SMTP settings
Set up time settings
ProcedureTo 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.
Related Tasks
