Power Nap through Ethernet adapter

Hi,
I am wondering what kind of network interface Power Nap can use : wireless, wired, wired via ethernet adapter (USB or Thunderbolt)?
I am using a 2012 MBA mainly connecting to the Internet with an Ethernet Thunderbolt adapter.
Will Power Nap be able to do the same, i.e. wake the Mac and the Ethernet adapter?
Thanks

I am using a retina MBP and have noticed that PowerNap does not work when my only connection in the Thunderbolt-Ethernet adapter. If I am using WiFi, or if I have both working then PowerNap is functional.
The Console shows that at attempts to access the internet or connect to my TimeCapsule or NAS drive, it gets a "Network Down (50)" error.
If only on Thunderbolt Ethernet, when I wake the computer, I see an error message that "Server connection was interrupted" that quickly disappears, and I get the flood of emails and iMessages come in. On the other hand, if WiFi is on, I see no error messages and the emails and messages are waiting for me on wake.
I suspect this is a bug - that PowerNap is unable to wake the Thunderbolt port, or was done specifically to avoid waking other Thunderbolt devices or breaching thermals. Just wish Apple had let us know, because it took me a long time to figure out why PowerNap wasnt working for me. Could be fixed by software patch, if Apple wanted to!
IL
Macbook Pro Retina, OS X 10.8.2, iPhone 4S, iPad (3), TimeCapsule, AEBS

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http://www.afterthemac.com/
Understand that the "AirPort" is just Apple's fancy name for Standard WiFi Networking. It's not anything special. Just Apple's implementation.
So, any WiFi Ethernet Adapter is going to be compatible with Apple's Airport network.
If you want to use the standard USB to Ethernet adapters, then you could look to see if you can find a suitable driver that will either enable your adapter (the one you just purchased) to work, or perhaps find an adapter that has a 3rd-party driver and then purchase that one. The following website lists Mac OS drivers that will enable "Windows-Only" adapters to work:
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The problem there, is that most USB to Ethernet (not wireless) adapters come only with Windows drivers. So, this website provides information and support to make those devices with with Mac OS X.
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