Thanks for your respond guys, one more, I see there is License MAC under OS admin-show-Network. is it valid License MAC to use or will it be defferent to the one I should generate as suggested above? @Ronak's comment.
Here are the methods that depend on "pre" or "post" installation
Customer Impact from New Licensing Procedures
Cisco Unified Communications Manager on Virtualized 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:
•NTP server 1 (or "none")
•NIC speed (or "auto")
•IP Address (or "dhcp")
•IP Mask (or "dhcp")
•Gateway Address (or "dhcp")
•Primary DNS (or "dhcp")
•SMTP server (or "none")
•Certificate Information (Organization, Unit, Location, State, Country)
The ways to obtain the license MAC are as follows:
Note If you use this method, ensure that you enter the identical parameter values in the Answer File Generator and the Cisco Unified Communications Manager installation program, or the license will be invalid.
•After installation, navigate to Show > System in Cisco Unified Communications Manager Administration.
•After installation, use the CLI command show status.
Obtaining New Licenses
The process to redeem a Product Activation Key (PAK) for licenses at www.cisco.com/go/license is changed for a license MAC. When redeeming a PAK for a license MAC at this URL, you get prompted to select the type of license that you want to obtain:
•A physical MAC address — this is used when Cisco Unified Communications Manager will be installed on an MCS server.
•A license MAC address — this is used when Cisco Unified Communications Manager will be installed on Cisco Unified Communications Manager on Virtualized Servers.
After you make this selection, the generation and installation of the license file follows the same process.
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