About Me

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TsooRad is a blog for John Weber. John was a Skype for Business MVP (2015-2018) - before that, a Lync Server MVP (2010-2014). My day job is titled "Technical Lead, MS UC" - I work with an awesome group of people at CDW, LLC. I focus on collaboration and infrastructure. This means Exchange of all flavors, Skype, LCS/OCS/Lync, Windows, business process, and learning new stuff. I have a variety of interests - some of which may rear their ugly head in this forum. I have a variety of certifications dating back to Novell CNE and working up through the Microsoft MCP stack to MCITP multiple times. FWIW, I am on my third career - ex-USMC, retired US Army. I have a fancy MBA. One of these days, I intend to start teaching. The opinions expressed on this blog are mine and mine alone.


Static MAC addresses in Virtual

With the advent of more and more virtualization, and virtualized appliances, you may run across a situation where you need to assign a static MAC to a specific VM. Some virtual appliances use the MAC of the virtual NIC to figure out their licensing, so this would be a perfect example of needing to set a static MAC for the virtual machine. If/when the image moves inside the resource pool or is manually moved to a different host, if the MAC is not static, there is the specter of the VM losing the existing MAC and having a new one assigned. At this point the virtual appliance may lose its’ ability to use the license that was keyed to the MAC on the original load. The answer is to set a static MAC for that virtual machine. As a side note, you may also need to pay attention to doing this license process with only ONE NIC assigned to the VM.

For the VMware addicts:



For the Hyper-V folks:


For the Server 2012 Hyper-V users, the actual screens change a bit… here is a zippy screen shot.



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