Changing IM and P IP address to DNS name

[Valentine Sondoyi]

Hi

Have IM&P 9.1 in a CUCM 9.1 cluster.  Need to change from ip address to DNS name on the IM&P. The cisco doc not necessarily showing how that can be done, its showing how to modify IP address or DNS name but not change from IP to DNS operation.

[Deepak Rawat]

You can simply change the IP Address to FQDN of your IM&P server. Just make sure that you have defined the Reverse and Forward look up entries on your DNS server for this before making the change. You can use the below command from CUCM and IM&P CLI just to ensure that DNS resolution is working fine back and forth between the servers:

utils network host <IP Address of Target server>

utils network host <FQDN of Target server>

It is usually recommended that this change should be followed by server reboot to update the necessary entries in all the system files.

Regards

Deepak

[Gordon Ross]

In addition to what Deepak says:

1. Check that the DNS entry you are going to use works.
2. Double check that the DNS entry you enter is correct before pressing the submit button/return key
3. Do one node at a time. Reboot it, and make sure everything is fine before starting the next node.
4. Check again that the DNS entries are all correct and working before making the change.

GTG