CCX automatically change MAC

[Nguyen KeThuc]

Hi all,

I have 6 CCX servers with fulfilled license. Recently, I check their MAC addresses and see that they are changed. Meanwhile, I did not change any parameters:

• Time zone
• NTP server 1 (or none)
• NIC speed (or auto)
• Hostname
• IP Address
• IP Mask
• Gateway Address
• Primary DNS
• SMTP server
• Certificate Information (Organization, Unit, Location, State, Country

Any ideas for me?

Thuc

[Aaron Harrison]

Hi

What has changed?

The interface MAC? I.e. that seen from other hosts' ARP tables?

Or the license MAC, as seen from Show Status?

Has your system gone into licensing problems/grace period?

Aaron

[Nguyen KeThuc]

Hi Harison,

The license MAC was changed. I check in Cisco Website that the license MAC depends on time zone, NTP server, IP Address...But I don't know how to specify which one was changed before? 

The system has not gone down. In License Display, one message happens:

"Cisco Unified CCX License package is None.
Upload a valid license by clicking Add License link
OR check the parameters of the system on which the License MAC depends." 

Any suggestion?

Thuc

[Aaron Harrison]

Do you know when this happened?

I would retrieve all the logs off both servers immediately and then try to review them for obvious changes to those parameters..

Or if you have a backup, build a new VM, restore the backup and compare the settings.

Aaron

[Nguyen KeThuc]

Hi Aaron,

My trace file have limited time (few days). Do you know how to check Informic DB update in UCCX?

Regards,

Thuc

[Arundeep Nagaraj · Accepted solution]

Hi Nguyen,

There is a log file called LicenseMAC log which displays all the parameters that affect the license MAC.

This is a very useful log file in finding out which parameter changed and when.

Login to the RTMT and collect the Install/Upgrade logs.

In the install folder you will have the License MAC log file. Please check this and let me know if it helps!
 

Regards,

Arundeep

[Aaron Harrison]

Handy... I hadn't see that! +5

[Nguyen KeThuc]

Yes. Thanks Arundeep. I found that the NTP server was changed.

Thuc

[caudrick]

How could I solve this problem