Licensing Carification RE: License MAC

[gmgarrian]

Can anyone shed some light on how the license MAC works?

I had a CUCM BE 6000 with CUCM 8.6 and UCONN 8.6 running as virtual machines.  I changed the NTP settings and this changed the license MAC with invalidated the licenses.  I had to call TAC to rehost them.

Then, I had a CUCM and UCONN, both 8.5 running as standard installs (non-VM) and changing the NTP settings did not change the license MAC and not rehosting was needed.

I'm going to need to do the NTP settings on a CUCM BE 5000, non-VM.  Will this invalidate the licenses?

Long story short (too late!): Is the license MAC the physical MAC of the machine and only changes when the server is a VM?

Thanks!

Greg

[Aaron Harrison · Accepted solution]

Hi

Yes, it's VM servers that use virtual MACs.

You can use the answer file generator to preview what MAC address you will get generated on a VM system. If you change NTP, you get a new MAC, if you change domain, new MAC... if you change the DNS server I don't think it does. Try it for yourself:

http://www.cisco.com/web/cuc_afg/index.html

Aaron Harrison

Principal Engineer at Logicalis UK

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[gmgarrian]

Thanks for the info!

[Rob Huffman]

Hi "G" - Greg,

Aaron has given the perfect answer here! +5 "A"

Here is the Cisco reference to this licensing change;

Customer Impact from New Licensing Procedures

#

Cisco Unified Communications Manager on VMware on Cisco UCS B-Series Blade Servers uses a different licensing model than Cisco Unified Communications Manager on an MCS server. The MAC address of the NIC card is no longer used to associate the license to the server.

#

Instead, the license gets associated to a license MAC, which is a 12 digit HEX value created by hashing the following parameters that you configure on the server:

#

•Time zone

#

•NTP server 1 (or "none")

#

•NIC speed (or "auto")

#

•Hostname

#

•IP Address (or "dhcp")

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•IP Mask (or "dhcp")

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•Gateway Address (or "dhcp")

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•Primary DNS (or "dhcp")

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•SMTP server (or "none")

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•Certificate Information (Organization, Unit, Location, State, Country)

This hash of these fields is called the LICENSE MAC

Note : Once there is a change in any of the parameters that creates the License MAC, it will

give you 30 day grace period to generate a new license file for the CM based on new license

MAC.

http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/install/8_0_2/install/cmins802.html#wp584709

Cheers!

Rob

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