So the question is how to configure the RV042 to do this when the modem is in transparent bridging mode. So far, no joy. 5+ hours on the phone with a pleasant Mr. Perez from Cisco support, along with joint conference calls with CenturyLink tech support have not yielded any fruit.
I have signed up for tunnels at SIXXS and Hurricane Electric. I have purchased a VDSL2 modem that does not appear to have routing functionality (not yet arrived as of 10/10/12).
I will continue to update this post as tickets are still open with Cisco and CenturyLink.