I know this for sure that when the PC's ethernet card is connected to the DSL modem/router's ethernet port in "bridge" mode, the WAN IP appears on the PC's NIC i.e. the PC become visible on the 'Net.

Likewise, is the same true when the PC is connected to the DSL modem/router using the USB ports on the respective devices?

To the best of my knowledge the answer is yes but need to confirm it from the device gurus :)

TIA