On Tue, 26 Jan 2016 01:48:06 +0000, Ken Cito wrote:

I am still confused. Sorry. I just don't get *why* any cloning is needed.

Is *this* the reason that this crazy cloning is needed?
http://kb.netgear.com/app/answers/de...ning-explained
"Some cable companies, for some reason, also authenticate the network card
in your computer. First it will authenticate the Cable Modem, and then when
your computer attempts to get online, they'll check and make sure that you're
still using the same computer/network card/etc that you've always used.
If you've changed your network card or installed a router, they will deny
you access to the Internet. This is why most cable routers have a "MAC Address
Clone" (Use Computer MAC address) feature. If you tell your router to clone
your network card's MAC Address, it makes your cable provider think that you're
still using the same computer/network card to access their services, and
therefore they allow your router on the network."

This description above implies that Comcast is requiring both the MAC of the
DOCSIS3 Costco Arris/Motorola plus the MAC of the laptop computer, which, is
cloned onto the TP-Link router.

Why on earth would Comcast want *two* MAC addresses?
Since they're so easily spoofed, why does Comcast care?

Why does Comcast need anything more than the Costco modem's MAC address?