How to change the Neverfail Channel IP address(es), When Neverfail is Already Installed on the Pair

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Summary

This Knowledgebase article provides information about how to change the Neverfail Channel IP address(es), when Neverfail is installed on a server pair.


More Information

There may be occasions where it is necessary to change the channel IP address(es) on a Neverfail server pair.  Neverfail can accommodate the requirement with some minor configuration changes.

Procedure

To change the Neverfail Channel IP address on a Neverfail server pair, follow the steps below:

The following steps assume the server pair is configured with the Primary server as active, and the Secondary server as passive.

  1. Login to the Neverfail Heartbeat Management Client on the Primary (active) server.
  2. Stop Neverfail Heartbeat leaving the protected applications running.
  3. Change Primary and Secondary Channel IP address(es); making sure it is set in a different subnet class than the principal (public) addresses. If the principal (public) and channel connection are in the same subnet, please see Knowledgebase article #466 - How to Create a Static Route for the Neverfail Channel Connection Where the Channel and Principal (Public) IP Addresses Are on the Same Subnet in a WAN Environment.
  4. Open the Server Configuration wizard on the Primary server and click on the Channel tab.

    Server Configuration Wizard Channel tab
  5. Edit the channel IP address(es). The Primary server channel IP can be selected from the drop down box. The Secondary server channel IP address needs to be filled in manually, ensuring to press ENTER once the IP address of the Secondary server is correct. Click Finish . Note: If you do not press ENTER , the changes will not be stored.
  6. Open the Server Configuration wizard on the Secondary server and go to the Channel tab.
  7. Edit the channel IP address(es) for the Secondary server. Select the Secondary server channel IP address from the drop down box. The Primary server channel IP address needs to be filled in manually. Click Finish when done.
  8. Start Neverfail Heartbeat on the Secondary (passive) server.
  9. Start Neverfail Heartbeat on the Primary (active) server and allow servers to resync.


Applies To

All Versions


Related Information

Knowledgebase article #843 - How to Configure Neverfail Heartbeat to Use a Different Principal (Public) IP Address

Knowledgebase article #840 - How to change the Neverfail Channel IP address(es), When Neverfail is Already Installed on the Trio

KBID-492

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