Cisco Unified Communications Manager (CallManager)

CUCM IP Address Change

Document ID: 116292

Updated: Jul 22, 2013

Contributed by William Ryan Bennett and Thomas Runyan, Cisco TAC Engineers.



This document describes how to change the IP address of a Cisco Unified Communications Manager (CUCM) Publisher.



There are no specific requirements for this document.

Components Used

The information in this document is based on these software and hardware versions:

  • CUCM Versions 7.1+ Through 8.6.2
  • No Domain Name System (DNS) Configuration

The information in this document was created from the devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If your network is live, make sure that you understand the potential impact of any command.

Steps to Change the IP Address

Note: Refer to the CUCM 9.x+ and ELM - License Upgrade and Installation article for more information.

  1. Access the Communications Manager (CM) Administration web page.  Use the drop-down menu in order to choose  System > Server.
  2. Click the Find button and choose the Publisher.

  3. Enter the new IP address in the Host Name / IP Address field.

  4. Click OK and wait for the page to refresh.

  5. Navigate to the CLI  and enter set network gateway <IP Address of new GW> at the admin prompt.

  6. Perform reboots and restarts as required when prompted. 
  7. Navigate to the CLI and enter set network ip eth0 <New IP Address> <New Subnet Mask> at the admin prompt.

  8. Perform reboots and restarts as required when prompted.
  9. Wait approximately 15 to 20 minutes for everything to reboot and come back up.
  10. Log in to the CLI and the console GUI with the new IP address.
  11. Enter show network cluster in the CLI window and verify that the new address is listed.


  12. Open the Unified Reporting tool and use the Unified CM Database Status menu item in order to verify the settings. Ensure that you click Generate New Report every time that you use this page.

  13. Verify that the new IP address appears everywhere it should in order to ensure that the IP address change is successful.

Updated: Jul 22, 2013
Document ID: 116292