You can point the second VMC at the first as a license server (or setup database synchronization) and share the licenses between the two appliances, but if the primary appliance is offline for an extended period of time or the secondary is rebooted while the license server is unavailable, you could end up with no usable licenses.
The better option is to install the Mobility Conductor which will act as the license server for all mobility controllers.
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Carson Hulcher, ACEX#110
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