Choose your cart
It would be better to use your own RJ-45 WAN port router that has that feature working and then putting your modem combo into bridge mode.
As how to get your modem combo into bridge mode, I point to http://www.dslreports.com/faq/13600
If you are the original poster (OP) and your issue is solved, please remember to click the "Solution?" button so that others can more easily find it. If anyone has been helpful to you, please show your appreciation by clicking the "Kudos" button.