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Originally Posted by toenail plus how would they find out... just say you use the net more then the phone itself.. i really dont think there is a way for them to find out how you are using the usage if you do not tell them.... |
Do you have a networking background to back that up? I'm not a network engineer, but have a rough idea of how TCP/IP works.
One way it
could be done is to check the MAC address of the device accessing the carrier's servers. If it's not the MAC address of the Q, they'd know you're tethering. Of course, that would imply the carrier would have to record the MAC address of every device they sell, which they probably don't do.
However, they could do something similar without recording the device's MAC address. They could check the MAC address used for a given phone number and, if two different MAC addresses showed up for the same number, they'd know one of those two was tethering (assuming you didn't switch from one device to another on that number).
That said, I've read that PDANet works invisibly by somehow making it look like the device issued the network request (perhaps by spoofing the MAC address). I don't know if that's true, though.
Steve